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author | Ulrich Weigand <uweigand@de.ibm.com> | 2019-09-03 15:08:28 +0000 |
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committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2019-09-03 15:08:28 +0000 |
commit | 2f2aeda98f3aa24034a700e7efcb6c1a9397836f (patch) | |
tree | 5b5243531a267cc134be476ce30f7405ea5998a4 /gcc/config/spu/spu.c | |
parent | 934392185369af22fee845e4edd92c420b8c248b (diff) | |
download | gcc-2f2aeda98f3aa24034a700e7efcb6c1a9397836f.zip gcc-2f2aeda98f3aa24034a700e7efcb6c1a9397836f.tar.gz gcc-2f2aeda98f3aa24034a700e7efcb6c1a9397836f.tar.bz2 |
Remove Cell Broadband Engine SPU targets
From-SVN: r275343
Diffstat (limited to 'gcc/config/spu/spu.c')
-rw-r--r-- | gcc/config/spu/spu.c | 7469 |
1 files changed, 0 insertions, 7469 deletions
diff --git a/gcc/config/spu/spu.c b/gcc/config/spu/spu.c deleted file mode 100644 index 7afd43b..0000000 --- a/gcc/config/spu/spu.c +++ /dev/null @@ -1,7469 +0,0 @@ -/* Copyright (C) 2006-2019 Free Software Foundation, Inc. - - This file is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your option) - any later version. - - This file is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - for more details. - - You should have received a copy of the GNU General Public License - along with GCC; see the file COPYING3. If not see - <http://www.gnu.org/licenses/>. */ - -#define IN_TARGET_CODE 1 - -#include "config.h" -#include "system.h" -#include "coretypes.h" -#include "backend.h" -#include "target.h" -#include "rtl.h" -#include "tree.h" -#include "gimple.h" -#include "cfghooks.h" -#include "cfgloop.h" -#include "df.h" -#include "memmodel.h" -#include "tm_p.h" -#include "stringpool.h" -#include "attribs.h" -#include "expmed.h" -#include "optabs.h" -#include "regs.h" -#include "emit-rtl.h" -#include "recog.h" -#include "diagnostic-core.h" -#include "insn-attr.h" -#include "alias.h" -#include "fold-const.h" -#include "stor-layout.h" -#include "calls.h" -#include "varasm.h" -#include "explow.h" -#include "expr.h" -#include "output.h" -#include "cfgrtl.h" -#include "cfgbuild.h" -#include "langhooks.h" -#include "reload.h" -#include "sched-int.h" -#include "params.h" -#include "gimplify.h" -#include "tm-constrs.h" -#include "ddg.h" -#include "dumpfile.h" -#include "builtins.h" -#include "rtl-iter.h" -#include "flags.h" -#include "toplev.h" - -/* This file should be included last. */ -#include "target-def.h" - -/* Builtin types, data and prototypes. */ - -enum spu_builtin_type_index -{ - SPU_BTI_END_OF_PARAMS, - - /* We create new type nodes for these. */ - SPU_BTI_V16QI, - SPU_BTI_V8HI, - SPU_BTI_V4SI, - SPU_BTI_V2DI, - SPU_BTI_V4SF, - SPU_BTI_V2DF, - SPU_BTI_UV16QI, - SPU_BTI_UV8HI, - SPU_BTI_UV4SI, - SPU_BTI_UV2DI, - - /* A 16-byte type. (Implemented with V16QI_type_node) */ - SPU_BTI_QUADWORD, - - /* These all correspond to intSI_type_node */ - SPU_BTI_7, - SPU_BTI_S7, - SPU_BTI_U7, - SPU_BTI_S10, - SPU_BTI_S10_4, - SPU_BTI_U14, - SPU_BTI_16, - SPU_BTI_S16, - SPU_BTI_S16_2, - SPU_BTI_U16, - SPU_BTI_U16_2, - SPU_BTI_U18, - - /* These correspond to the standard types */ - SPU_BTI_INTQI, - SPU_BTI_INTHI, - SPU_BTI_INTSI, - SPU_BTI_INTDI, - - SPU_BTI_UINTQI, - SPU_BTI_UINTHI, - SPU_BTI_UINTSI, - SPU_BTI_UINTDI, - - SPU_BTI_FLOAT, - SPU_BTI_DOUBLE, - - SPU_BTI_VOID, - SPU_BTI_PTR, - - SPU_BTI_MAX -}; - -#define V16QI_type_node (spu_builtin_types[SPU_BTI_V16QI]) -#define V8HI_type_node (spu_builtin_types[SPU_BTI_V8HI]) -#define V4SI_type_node (spu_builtin_types[SPU_BTI_V4SI]) -#define V2DI_type_node (spu_builtin_types[SPU_BTI_V2DI]) -#define V4SF_type_node (spu_builtin_types[SPU_BTI_V4SF]) -#define V2DF_type_node (spu_builtin_types[SPU_BTI_V2DF]) -#define unsigned_V16QI_type_node (spu_builtin_types[SPU_BTI_UV16QI]) -#define unsigned_V8HI_type_node (spu_builtin_types[SPU_BTI_UV8HI]) -#define unsigned_V4SI_type_node (spu_builtin_types[SPU_BTI_UV4SI]) -#define unsigned_V2DI_type_node (spu_builtin_types[SPU_BTI_UV2DI]) - -static GTY(()) tree spu_builtin_types[SPU_BTI_MAX]; - -struct spu_builtin_range -{ - int low, high; -}; - -static struct spu_builtin_range spu_builtin_range[] = { - {-0x40ll, 0x7fll}, /* SPU_BTI_7 */ - {-0x40ll, 0x3fll}, /* SPU_BTI_S7 */ - {0ll, 0x7fll}, /* SPU_BTI_U7 */ - {-0x200ll, 0x1ffll}, /* SPU_BTI_S10 */ - {-0x2000ll, 0x1fffll}, /* SPU_BTI_S10_4 */ - {0ll, 0x3fffll}, /* SPU_BTI_U14 */ - {-0x8000ll, 0xffffll}, /* SPU_BTI_16 */ - {-0x8000ll, 0x7fffll}, /* SPU_BTI_S16 */ - {-0x20000ll, 0x1ffffll}, /* SPU_BTI_S16_2 */ - {0ll, 0xffffll}, /* SPU_BTI_U16 */ - {0ll, 0x3ffffll}, /* SPU_BTI_U16_2 */ - {0ll, 0x3ffffll}, /* SPU_BTI_U18 */ -}; - - -/* Target specific attribute specifications. */ -char regs_ever_allocated[FIRST_PSEUDO_REGISTER]; - -/* Prototypes and external defs. */ -static int get_pipe (rtx_insn *insn); -static int spu_naked_function_p (tree func); -static int mem_is_padded_component_ref (rtx x); -static void fix_range (const char *); -static rtx spu_expand_load (rtx, rtx, rtx, int); - -/* Which instruction set architecture to use. */ -int spu_arch; -/* Which cpu are we tuning for. */ -int spu_tune; - -/* The hardware requires 8 insns between a hint and the branch it - effects. This variable describes how many rtl instructions the - compiler needs to see before inserting a hint, and then the compiler - will insert enough nops to make it at least 8 insns. The default is - for the compiler to allow up to 2 nops be emitted. The nops are - inserted in pairs, so we round down. */ -int spu_hint_dist = (8*4) - (2*4); - -enum spu_immediate { - SPU_NONE, - SPU_IL, - SPU_ILA, - SPU_ILH, - SPU_ILHU, - SPU_ORI, - SPU_ORHI, - SPU_ORBI, - SPU_IOHL -}; -enum immediate_class -{ - IC_POOL, /* constant pool */ - IC_IL1, /* one il* instruction */ - IC_IL2, /* both ilhu and iohl instructions */ - IC_IL1s, /* one il* instruction */ - IC_IL2s, /* both ilhu and iohl instructions */ - IC_FSMBI, /* the fsmbi instruction */ - IC_CPAT, /* one of the c*d instructions */ - IC_FSMBI2 /* fsmbi plus 1 other instruction */ -}; - -static enum spu_immediate which_immediate_load (HOST_WIDE_INT val); -static enum spu_immediate which_logical_immediate (HOST_WIDE_INT val); -static int cpat_info(unsigned char *arr, int size, int *prun, int *pstart); -static enum immediate_class classify_immediate (rtx op, - machine_mode mode); - -/* Pointer mode for __ea references. */ -#define EAmode (spu_ea_model != 32 ? DImode : SImode) - - -/* Define the structure for the machine field in struct function. */ -struct GTY(()) machine_function -{ - /* Register to use for PIC accesses. */ - rtx pic_reg; -}; - -/* How to allocate a 'struct machine_function'. */ -static struct machine_function * -spu_init_machine_status (void) -{ - return ggc_cleared_alloc<machine_function> (); -} - -/* Implement TARGET_OPTION_OVERRIDE. */ -static void -spu_option_override (void) -{ - /* Set up function hooks. */ - init_machine_status = spu_init_machine_status; - - /* Small loops will be unpeeled at -O3. For SPU it is more important - to keep code small by default. */ - if (!flag_unroll_loops && !flag_peel_loops) - maybe_set_param_value (PARAM_MAX_COMPLETELY_PEEL_TIMES, 4, - global_options.x_param_values, - global_options_set.x_param_values); - - flag_omit_frame_pointer = 1; - - /* Functions must be 8 byte aligned so we correctly handle dual issue */ - parse_alignment_opts (); - if (align_functions.levels[0].get_value () < 8) - str_align_functions = "8"; - - spu_hint_dist = 8*4 - spu_max_nops*4; - if (spu_hint_dist < 0) - spu_hint_dist = 0; - - if (spu_fixed_range_string) - fix_range (spu_fixed_range_string); - - /* Determine processor architectural level. */ - if (spu_arch_string) - { - if (strcmp (&spu_arch_string[0], "cell") == 0) - spu_arch = PROCESSOR_CELL; - else if (strcmp (&spu_arch_string[0], "celledp") == 0) - spu_arch = PROCESSOR_CELLEDP; - else - error ("bad value (%s) for %<-march=%> switch", spu_arch_string); - } - - /* Determine processor to tune for. */ - if (spu_tune_string) - { - if (strcmp (&spu_tune_string[0], "cell") == 0) - spu_tune = PROCESSOR_CELL; - else if (strcmp (&spu_tune_string[0], "celledp") == 0) - spu_tune = PROCESSOR_CELLEDP; - else - error ("bad value (%s) for %<-mtune=%> switch", spu_tune_string); - } - - /* Change defaults according to the processor architecture. */ - if (spu_arch == PROCESSOR_CELLEDP) - { - /* If no command line option has been otherwise specified, change - the default to -mno-safe-hints on celledp -- only the original - Cell/B.E. processors require this workaround. */ - if (!(target_flags_explicit & MASK_SAFE_HINTS)) - target_flags &= ~MASK_SAFE_HINTS; - } - - REAL_MODE_FORMAT (SFmode) = &spu_single_format; -} - -/* Implement TARGET_HARD_REGNO_NREGS. */ - -static unsigned int -spu_hard_regno_nregs (unsigned int, machine_mode mode) -{ - return CEIL (GET_MODE_BITSIZE (mode), MAX_FIXED_MODE_SIZE); -} - -/* Handle an attribute requiring a FUNCTION_DECL; arguments as in - struct attribute_spec.handler. */ - -/* True if MODE is valid for the target. By "valid", we mean able to - be manipulated in non-trivial ways. In particular, this means all - the arithmetic is supported. */ -static bool -spu_scalar_mode_supported_p (scalar_mode mode) -{ - switch (mode) - { - case E_QImode: - case E_HImode: - case E_SImode: - case E_SFmode: - case E_DImode: - case E_TImode: - case E_DFmode: - return true; - - default: - return false; - } -} - -/* Similarly for vector modes. "Supported" here is less strict. At - least some operations are supported; need to check optabs or builtins - for further details. */ -static bool -spu_vector_mode_supported_p (machine_mode mode) -{ - switch (mode) - { - case E_V16QImode: - case E_V8HImode: - case E_V4SImode: - case E_V2DImode: - case E_V4SFmode: - case E_V2DFmode: - return true; - - default: - return false; - } -} - -/* GCC assumes that in a paradoxical SUBREG the inner mode occupies the - least significant bytes of the outer mode. This function returns - TRUE for the SUBREG's where this is correct. */ -int -valid_subreg (rtx op) -{ - machine_mode om = GET_MODE (op); - machine_mode im = GET_MODE (SUBREG_REG (op)); - return om != VOIDmode && im != VOIDmode - && (GET_MODE_SIZE (im) == GET_MODE_SIZE (om) - || (GET_MODE_SIZE (im) <= 4 && GET_MODE_SIZE (om) <= 4) - || (GET_MODE_SIZE (im) >= 16 && GET_MODE_SIZE (om) >= 16)); -} - -/* When insv and ext[sz]v ar passed a TI SUBREG, we want to strip it off - and adjust the start offset. */ -static rtx -adjust_operand (rtx op, HOST_WIDE_INT * start) -{ - machine_mode mode; - int op_size; - /* Strip any paradoxical SUBREG. */ - if (GET_CODE (op) == SUBREG - && (GET_MODE_BITSIZE (GET_MODE (op)) - > GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op))))) - { - if (start) - *start -= - GET_MODE_BITSIZE (GET_MODE (op)) - - GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op))); - op = SUBREG_REG (op); - } - /* If it is smaller than SI, assure a SUBREG */ - op_size = GET_MODE_BITSIZE (GET_MODE (op)); - if (op_size < 32) - { - if (start) - *start += 32 - op_size; - op_size = 32; - } - /* If it is not a MODE_INT (and/or it is smaller than SI) add a SUBREG. */ - mode = int_mode_for_size (op_size, 0).require (); - if (mode != GET_MODE (op)) - op = gen_rtx_SUBREG (mode, op, 0); - return op; -} - -void -spu_expand_extv (rtx ops[], int unsignedp) -{ - rtx dst = ops[0], src = ops[1]; - HOST_WIDE_INT width = INTVAL (ops[2]); - HOST_WIDE_INT start = INTVAL (ops[3]); - HOST_WIDE_INT align_mask; - rtx s0, s1, mask, r0; - - gcc_assert (REG_P (dst) && GET_MODE (dst) == TImode); - - if (MEM_P (src)) - { - /* First, determine if we need 1 TImode load or 2. We need only 1 - if the bits being extracted do not cross the alignment boundary - as determined by the MEM and its address. */ - - align_mask = -MEM_ALIGN (src); - if ((start & align_mask) == ((start + width - 1) & align_mask)) - { - /* Alignment is sufficient for 1 load. */ - s0 = gen_reg_rtx (TImode); - r0 = spu_expand_load (s0, 0, src, start / 8); - start &= 7; - if (r0) - emit_insn (gen_rotqby_ti (s0, s0, r0)); - } - else - { - /* Need 2 loads. */ - s0 = gen_reg_rtx (TImode); - s1 = gen_reg_rtx (TImode); - r0 = spu_expand_load (s0, s1, src, start / 8); - start &= 7; - - gcc_assert (start + width <= 128); - if (r0) - { - rtx r1 = gen_reg_rtx (SImode); - mask = gen_reg_rtx (TImode); - emit_move_insn (mask, GEN_INT (-1)); - emit_insn (gen_rotqby_ti (s0, s0, r0)); - emit_insn (gen_rotqby_ti (s1, s1, r0)); - if (GET_CODE (r0) == CONST_INT) - r1 = GEN_INT (INTVAL (r0) & 15); - else - emit_insn (gen_andsi3 (r1, r0, GEN_INT (15))); - emit_insn (gen_shlqby_ti (mask, mask, r1)); - emit_insn (gen_selb (s0, s1, s0, mask)); - } - } - - } - else if (GET_CODE (src) == SUBREG) - { - rtx r = SUBREG_REG (src); - gcc_assert (REG_P (r) && SCALAR_INT_MODE_P (GET_MODE (r))); - s0 = gen_reg_rtx (TImode); - if (GET_MODE_SIZE (GET_MODE (r)) < GET_MODE_SIZE (TImode)) - emit_insn (gen_rtx_SET (s0, gen_rtx_ZERO_EXTEND (TImode, r))); - else - emit_move_insn (s0, src); - } - else - { - gcc_assert (REG_P (src) && GET_MODE (src) == TImode); - s0 = gen_reg_rtx (TImode); - emit_move_insn (s0, src); - } - - /* Now s0 is TImode and contains the bits to extract at start. */ - - if (start) - emit_insn (gen_rotlti3 (s0, s0, GEN_INT (start))); - - if (128 - width) - s0 = expand_shift (RSHIFT_EXPR, TImode, s0, 128 - width, s0, unsignedp); - - emit_move_insn (dst, s0); -} - -void -spu_expand_insv (rtx ops[]) -{ - HOST_WIDE_INT width = INTVAL (ops[1]); - HOST_WIDE_INT start = INTVAL (ops[2]); - unsigned HOST_WIDE_INT maskbits; - machine_mode dst_mode; - rtx dst = ops[0], src = ops[3]; - int dst_size; - rtx mask; - rtx shift_reg; - int shift; - - - if (GET_CODE (ops[0]) == MEM) - dst = gen_reg_rtx (TImode); - else - dst = adjust_operand (dst, &start); - dst_mode = GET_MODE (dst); - dst_size = GET_MODE_BITSIZE (GET_MODE (dst)); - - if (CONSTANT_P (src)) - { - machine_mode m = - (width <= 32 ? SImode : width <= 64 ? DImode : TImode); - src = force_reg (m, convert_to_mode (m, src, 0)); - } - src = adjust_operand (src, 0); - - mask = gen_reg_rtx (dst_mode); - shift_reg = gen_reg_rtx (dst_mode); - shift = dst_size - start - width; - - /* It's not safe to use subreg here because the compiler assumes - that the SUBREG_REG is right justified in the SUBREG. */ - convert_move (shift_reg, src, 1); - - if (shift > 0) - { - switch (dst_mode) - { - case E_SImode: - emit_insn (gen_ashlsi3 (shift_reg, shift_reg, GEN_INT (shift))); - break; - case E_DImode: - emit_insn (gen_ashldi3 (shift_reg, shift_reg, GEN_INT (shift))); - break; - case E_TImode: - emit_insn (gen_ashlti3 (shift_reg, shift_reg, GEN_INT (shift))); - break; - default: - abort (); - } - } - else if (shift < 0) - abort (); - - switch (dst_size) - { - case 32: - maskbits = (~(unsigned HOST_WIDE_INT)0 << (32 - width - start)); - if (start) - maskbits += ((unsigned HOST_WIDE_INT)1 << (32 - start)); - emit_move_insn (mask, GEN_INT (maskbits)); - break; - case 64: - maskbits = (~(unsigned HOST_WIDE_INT)0 << (64 - width - start)); - if (start) - maskbits += ((unsigned HOST_WIDE_INT)1 << (64 - start)); - emit_move_insn (mask, GEN_INT (maskbits)); - break; - case 128: - { - unsigned char arr[16]; - int i = start / 8; - memset (arr, 0, sizeof (arr)); - arr[i] = 0xff >> (start & 7); - for (i++; i <= (start + width - 1) / 8; i++) - arr[i] = 0xff; - arr[i - 1] &= 0xff << (7 - ((start + width - 1) & 7)); - emit_move_insn (mask, array_to_constant (TImode, arr)); - } - break; - default: - abort (); - } - if (GET_CODE (ops[0]) == MEM) - { - rtx low = gen_reg_rtx (SImode); - rtx rotl = gen_reg_rtx (SImode); - rtx mask0 = gen_reg_rtx (TImode); - rtx addr; - rtx addr0; - rtx addr1; - rtx mem; - - addr = force_reg (Pmode, XEXP (ops[0], 0)); - addr0 = gen_rtx_AND (Pmode, addr, GEN_INT (-16)); - emit_insn (gen_andsi3 (low, addr, GEN_INT (15))); - emit_insn (gen_negsi2 (rotl, low)); - emit_insn (gen_rotqby_ti (shift_reg, shift_reg, rotl)); - emit_insn (gen_rotqmby_ti (mask0, mask, rotl)); - mem = change_address (ops[0], TImode, addr0); - set_mem_alias_set (mem, 0); - emit_move_insn (dst, mem); - emit_insn (gen_selb (dst, dst, shift_reg, mask0)); - if (start + width > MEM_ALIGN (ops[0])) - { - rtx shl = gen_reg_rtx (SImode); - rtx mask1 = gen_reg_rtx (TImode); - rtx dst1 = gen_reg_rtx (TImode); - rtx mem1; - addr1 = plus_constant (Pmode, addr, 16); - addr1 = gen_rtx_AND (Pmode, addr1, GEN_INT (-16)); - emit_insn (gen_subsi3 (shl, GEN_INT (16), low)); - emit_insn (gen_shlqby_ti (mask1, mask, shl)); - mem1 = change_address (ops[0], TImode, addr1); - set_mem_alias_set (mem1, 0); - emit_move_insn (dst1, mem1); - emit_insn (gen_selb (dst1, dst1, shift_reg, mask1)); - emit_move_insn (mem1, dst1); - } - emit_move_insn (mem, dst); - } - else - emit_insn (gen_selb (dst, copy_rtx (dst), shift_reg, mask)); -} - - -int -spu_expand_block_move (rtx ops[]) -{ - HOST_WIDE_INT bytes, align, offset; - rtx src, dst, sreg, dreg, target; - int i; - if (GET_CODE (ops[2]) != CONST_INT - || GET_CODE (ops[3]) != CONST_INT - || INTVAL (ops[2]) > (HOST_WIDE_INT) (MOVE_RATIO (optimize_insn_for_speed_p ()) * 8)) - return 0; - - bytes = INTVAL (ops[2]); - align = INTVAL (ops[3]); - - if (bytes <= 0) - return 1; - - dst = ops[0]; - src = ops[1]; - - if (align == 16) - { - for (offset = 0; offset + 16 <= bytes; offset += 16) - { - dst = adjust_address (ops[0], V16QImode, offset); - src = adjust_address (ops[1], V16QImode, offset); - emit_move_insn (dst, src); - } - if (offset < bytes) - { - rtx mask; - unsigned char arr[16] = { 0 }; - for (i = 0; i < bytes - offset; i++) - arr[i] = 0xff; - dst = adjust_address (ops[0], V16QImode, offset); - src = adjust_address (ops[1], V16QImode, offset); - mask = gen_reg_rtx (V16QImode); - sreg = gen_reg_rtx (V16QImode); - dreg = gen_reg_rtx (V16QImode); - target = gen_reg_rtx (V16QImode); - emit_move_insn (mask, array_to_constant (V16QImode, arr)); - emit_move_insn (dreg, dst); - emit_move_insn (sreg, src); - emit_insn (gen_selb (target, dreg, sreg, mask)); - emit_move_insn (dst, target); - } - return 1; - } - return 0; -} - -enum spu_comp_code -{ SPU_EQ, SPU_GT, SPU_GTU }; - -int spu_comp_icode[12][3] = { - {CODE_FOR_ceq_qi, CODE_FOR_cgt_qi, CODE_FOR_clgt_qi}, - {CODE_FOR_ceq_hi, CODE_FOR_cgt_hi, CODE_FOR_clgt_hi}, - {CODE_FOR_ceq_si, CODE_FOR_cgt_si, CODE_FOR_clgt_si}, - {CODE_FOR_ceq_di, CODE_FOR_cgt_di, CODE_FOR_clgt_di}, - {CODE_FOR_ceq_ti, CODE_FOR_cgt_ti, CODE_FOR_clgt_ti}, - {CODE_FOR_ceq_sf, CODE_FOR_cgt_sf, 0}, - {CODE_FOR_ceq_df, CODE_FOR_cgt_df, 0}, - {CODE_FOR_ceq_v16qi, CODE_FOR_cgt_v16qi, CODE_FOR_clgt_v16qi}, - {CODE_FOR_ceq_v8hi, CODE_FOR_cgt_v8hi, CODE_FOR_clgt_v8hi}, - {CODE_FOR_ceq_v4si, CODE_FOR_cgt_v4si, CODE_FOR_clgt_v4si}, - {CODE_FOR_ceq_v4sf, CODE_FOR_cgt_v4sf, 0}, - {CODE_FOR_ceq_v2df, CODE_FOR_cgt_v2df, 0}, -}; - -/* Generate a compare for CODE. Return a brand-new rtx that represents - the result of the compare. GCC can figure this out too if we don't - provide all variations of compares, but GCC always wants to use - WORD_MODE, we can generate better code in most cases if we do it - ourselves. */ -void -spu_emit_branch_or_set (int is_set, rtx cmp, rtx operands[]) -{ - int reverse_compare = 0; - int reverse_test = 0; - rtx compare_result, eq_result; - rtx comp_rtx, eq_rtx; - machine_mode comp_mode; - machine_mode op_mode; - enum spu_comp_code scode, eq_code; - enum insn_code ior_code; - enum rtx_code code = GET_CODE (cmp); - rtx op0 = XEXP (cmp, 0); - rtx op1 = XEXP (cmp, 1); - int index; - int eq_test = 0; - - /* When op1 is a CONST_INT change (X >= C) to (X > C-1), - and so on, to keep the constant in operand 1. */ - if (GET_CODE (op1) == CONST_INT) - { - HOST_WIDE_INT val = INTVAL (op1) - 1; - if (trunc_int_for_mode (val, GET_MODE (op0)) == val) - switch (code) - { - case GE: - op1 = GEN_INT (val); - code = GT; - break; - case LT: - op1 = GEN_INT (val); - code = LE; - break; - case GEU: - op1 = GEN_INT (val); - code = GTU; - break; - case LTU: - op1 = GEN_INT (val); - code = LEU; - break; - default: - break; - } - } - - /* However, if we generate an integer result, performing a reverse test - would require an extra negation, so avoid that where possible. */ - if (GET_CODE (op1) == CONST_INT && is_set == 1) - { - HOST_WIDE_INT val = INTVAL (op1) + 1; - if (trunc_int_for_mode (val, GET_MODE (op0)) == val) - switch (code) - { - case LE: - op1 = GEN_INT (val); - code = LT; - break; - case LEU: - op1 = GEN_INT (val); - code = LTU; - break; - default: - break; - } - } - - comp_mode = SImode; - op_mode = GET_MODE (op0); - - switch (code) - { - case GE: - scode = SPU_GT; - if (HONOR_NANS (op_mode)) - { - reverse_compare = 0; - reverse_test = 0; - eq_test = 1; - eq_code = SPU_EQ; - } - else - { - reverse_compare = 1; - reverse_test = 1; - } - break; - case LE: - scode = SPU_GT; - if (HONOR_NANS (op_mode)) - { - reverse_compare = 1; - reverse_test = 0; - eq_test = 1; - eq_code = SPU_EQ; - } - else - { - reverse_compare = 0; - reverse_test = 1; - } - break; - case LT: - reverse_compare = 1; - reverse_test = 0; - scode = SPU_GT; - break; - case GEU: - reverse_compare = 1; - reverse_test = 1; - scode = SPU_GTU; - break; - case LEU: - reverse_compare = 0; - reverse_test = 1; - scode = SPU_GTU; - break; - case LTU: - reverse_compare = 1; - reverse_test = 0; - scode = SPU_GTU; - break; - case NE: - reverse_compare = 0; - reverse_test = 1; - scode = SPU_EQ; - break; - - case EQ: - scode = SPU_EQ; - break; - case GT: - scode = SPU_GT; - break; - case GTU: - scode = SPU_GTU; - break; - default: - scode = SPU_EQ; - break; - } - - switch (op_mode) - { - case E_QImode: - index = 0; - comp_mode = QImode; - break; - case E_HImode: - index = 1; - comp_mode = HImode; - break; - case E_SImode: - index = 2; - break; - case E_DImode: - index = 3; - break; - case E_TImode: - index = 4; - break; - case E_SFmode: - index = 5; - break; - case E_DFmode: - index = 6; - break; - case E_V16QImode: - index = 7; - comp_mode = op_mode; - break; - case E_V8HImode: - index = 8; - comp_mode = op_mode; - break; - case E_V4SImode: - index = 9; - comp_mode = op_mode; - break; - case E_V4SFmode: - index = 10; - comp_mode = V4SImode; - break; - case E_V2DFmode: - index = 11; - comp_mode = V2DImode; - break; - case E_V2DImode: - default: - abort (); - } - - if (GET_MODE (op1) == DFmode - && (scode != SPU_GT && scode != SPU_EQ)) - abort (); - - if (is_set == 0 && op1 == const0_rtx - && (GET_MODE (op0) == SImode - || GET_MODE (op0) == HImode - || GET_MODE (op0) == QImode) && scode == SPU_EQ) - { - /* Don't need to set a register with the result when we are - comparing against zero and branching. */ - reverse_test = !reverse_test; - compare_result = op0; - } - else - { - compare_result = gen_reg_rtx (comp_mode); - - if (reverse_compare) - { - rtx t = op1; - op1 = op0; - op0 = t; - } - - if (spu_comp_icode[index][scode] == 0) - abort (); - - if (!(*insn_data[spu_comp_icode[index][scode]].operand[1].predicate) - (op0, op_mode)) - op0 = force_reg (op_mode, op0); - if (!(*insn_data[spu_comp_icode[index][scode]].operand[2].predicate) - (op1, op_mode)) - op1 = force_reg (op_mode, op1); - comp_rtx = GEN_FCN (spu_comp_icode[index][scode]) (compare_result, - op0, op1); - if (comp_rtx == 0) - abort (); - emit_insn (comp_rtx); - - if (eq_test) - { - eq_result = gen_reg_rtx (comp_mode); - eq_rtx = GEN_FCN (spu_comp_icode[index][eq_code]) (eq_result, - op0, op1); - if (eq_rtx == 0) - abort (); - emit_insn (eq_rtx); - ior_code = optab_handler (ior_optab, comp_mode); - gcc_assert (ior_code != CODE_FOR_nothing); - emit_insn (GEN_FCN (ior_code) - (compare_result, compare_result, eq_result)); - } - } - - if (is_set == 0) - { - rtx bcomp; - rtx loc_ref; - - /* We don't have branch on QI compare insns, so we convert the - QI compare result to a HI result. */ - if (comp_mode == QImode) - { - rtx old_res = compare_result; - compare_result = gen_reg_rtx (HImode); - comp_mode = HImode; - emit_insn (gen_extendqihi2 (compare_result, old_res)); - } - - if (reverse_test) - bcomp = gen_rtx_EQ (comp_mode, compare_result, const0_rtx); - else - bcomp = gen_rtx_NE (comp_mode, compare_result, const0_rtx); - - loc_ref = gen_rtx_LABEL_REF (VOIDmode, operands[3]); - emit_jump_insn (gen_rtx_SET (pc_rtx, - gen_rtx_IF_THEN_ELSE (VOIDmode, bcomp, - loc_ref, pc_rtx))); - } - else if (is_set == 2) - { - rtx target = operands[0]; - int compare_size = GET_MODE_BITSIZE (comp_mode); - int target_size = GET_MODE_BITSIZE (GET_MODE (target)); - machine_mode mode = int_mode_for_size (target_size, 0).require (); - rtx select_mask; - rtx op_t = operands[2]; - rtx op_f = operands[3]; - - /* The result of the comparison can be SI, HI or QI mode. Create a - mask based on that result. */ - if (target_size > compare_size) - { - select_mask = gen_reg_rtx (mode); - emit_insn (gen_extend_compare (select_mask, compare_result)); - } - else if (target_size < compare_size) - select_mask = - gen_rtx_SUBREG (mode, compare_result, - (compare_size - target_size) / BITS_PER_UNIT); - else if (comp_mode != mode) - select_mask = gen_rtx_SUBREG (mode, compare_result, 0); - else - select_mask = compare_result; - - if (GET_MODE (target) != GET_MODE (op_t) - || GET_MODE (target) != GET_MODE (op_f)) - abort (); - - if (reverse_test) - emit_insn (gen_selb (target, op_t, op_f, select_mask)); - else - emit_insn (gen_selb (target, op_f, op_t, select_mask)); - } - else - { - rtx target = operands[0]; - if (reverse_test) - emit_insn (gen_rtx_SET (compare_result, - gen_rtx_NOT (comp_mode, compare_result))); - if (GET_MODE (target) == SImode && GET_MODE (compare_result) == HImode) - emit_insn (gen_extendhisi2 (target, compare_result)); - else if (GET_MODE (target) == SImode - && GET_MODE (compare_result) == QImode) - emit_insn (gen_extend_compare (target, compare_result)); - else - emit_move_insn (target, compare_result); - } -} - -HOST_WIDE_INT -const_double_to_hwint (rtx x) -{ - HOST_WIDE_INT val; - if (GET_MODE (x) == SFmode) - REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (x), val); - else if (GET_MODE (x) == DFmode) - { - long l[2]; - REAL_VALUE_TO_TARGET_DOUBLE (*CONST_DOUBLE_REAL_VALUE (x), l); - val = l[0]; - val = (val << 32) | (l[1] & 0xffffffff); - } - else - abort (); - return val; -} - -rtx -hwint_to_const_double (machine_mode mode, HOST_WIDE_INT v) -{ - long tv[2]; - REAL_VALUE_TYPE rv; - gcc_assert (mode == SFmode || mode == DFmode); - - if (mode == SFmode) - tv[0] = (v << 32) >> 32; - else if (mode == DFmode) - { - tv[1] = (v << 32) >> 32; - tv[0] = v >> 32; - } - real_from_target (&rv, tv, mode); - return const_double_from_real_value (rv, mode); -} - -void -print_operand_address (FILE * file, register rtx addr) -{ - rtx reg; - rtx offset; - - if (GET_CODE (addr) == AND - && GET_CODE (XEXP (addr, 1)) == CONST_INT - && INTVAL (XEXP (addr, 1)) == -16) - addr = XEXP (addr, 0); - - switch (GET_CODE (addr)) - { - case REG: - fprintf (file, "0(%s)", reg_names[REGNO (addr)]); - break; - - case PLUS: - reg = XEXP (addr, 0); - offset = XEXP (addr, 1); - if (GET_CODE (offset) == REG) - { - fprintf (file, "%s,%s", reg_names[REGNO (reg)], - reg_names[REGNO (offset)]); - } - else if (GET_CODE (offset) == CONST_INT) - { - fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%s)", - INTVAL (offset), reg_names[REGNO (reg)]); - } - else - abort (); - break; - - case CONST: - case LABEL_REF: - case SYMBOL_REF: - case CONST_INT: - output_addr_const (file, addr); - break; - - default: - debug_rtx (addr); - abort (); - } -} - -void -print_operand (FILE * file, rtx x, int code) -{ - machine_mode mode = GET_MODE (x); - HOST_WIDE_INT val; - unsigned char arr[16]; - int xcode = GET_CODE (x); - int i, info; - if (GET_MODE (x) == VOIDmode) - switch (code) - { - case 'L': /* 128 bits, signed */ - case 'm': /* 128 bits, signed */ - case 'T': /* 128 bits, signed */ - case 't': /* 128 bits, signed */ - mode = TImode; - break; - case 'K': /* 64 bits, signed */ - case 'k': /* 64 bits, signed */ - case 'D': /* 64 bits, signed */ - case 'd': /* 64 bits, signed */ - mode = DImode; - break; - case 'J': /* 32 bits, signed */ - case 'j': /* 32 bits, signed */ - case 's': /* 32 bits, signed */ - case 'S': /* 32 bits, signed */ - mode = SImode; - break; - } - switch (code) - { - - case 'j': /* 32 bits, signed */ - case 'k': /* 64 bits, signed */ - case 'm': /* 128 bits, signed */ - if (xcode == CONST_INT - || xcode == CONST_DOUBLE || xcode == CONST_VECTOR) - { - gcc_assert (logical_immediate_p (x, mode)); - constant_to_array (mode, x, arr); - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - switch (which_logical_immediate (val)) - { - case SPU_ORI: - break; - case SPU_ORHI: - fprintf (file, "h"); - break; - case SPU_ORBI: - fprintf (file, "b"); - break; - default: - gcc_unreachable(); - } - } - else - gcc_unreachable(); - return; - - case 'J': /* 32 bits, signed */ - case 'K': /* 64 bits, signed */ - case 'L': /* 128 bits, signed */ - if (xcode == CONST_INT - || xcode == CONST_DOUBLE || xcode == CONST_VECTOR) - { - gcc_assert (logical_immediate_p (x, mode) - || iohl_immediate_p (x, mode)); - constant_to_array (mode, x, arr); - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - switch (which_logical_immediate (val)) - { - case SPU_ORI: - case SPU_IOHL: - break; - case SPU_ORHI: - val = trunc_int_for_mode (val, HImode); - break; - case SPU_ORBI: - val = trunc_int_for_mode (val, QImode); - break; - default: - gcc_unreachable(); - } - fprintf (file, HOST_WIDE_INT_PRINT_DEC, val); - } - else - gcc_unreachable(); - return; - - case 't': /* 128 bits, signed */ - case 'd': /* 64 bits, signed */ - case 's': /* 32 bits, signed */ - if (CONSTANT_P (x)) - { - enum immediate_class c = classify_immediate (x, mode); - switch (c) - { - case IC_IL1: - constant_to_array (mode, x, arr); - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - switch (which_immediate_load (val)) - { - case SPU_IL: - break; - case SPU_ILA: - fprintf (file, "a"); - break; - case SPU_ILH: - fprintf (file, "h"); - break; - case SPU_ILHU: - fprintf (file, "hu"); - break; - default: - gcc_unreachable (); - } - break; - case IC_CPAT: - constant_to_array (mode, x, arr); - cpat_info (arr, GET_MODE_SIZE (mode), &info, 0); - if (info == 1) - fprintf (file, "b"); - else if (info == 2) - fprintf (file, "h"); - else if (info == 4) - fprintf (file, "w"); - else if (info == 8) - fprintf (file, "d"); - break; - case IC_IL1s: - if (xcode == CONST_VECTOR) - { - x = CONST_VECTOR_ELT (x, 0); - xcode = GET_CODE (x); - } - if (xcode == SYMBOL_REF || xcode == LABEL_REF || xcode == CONST) - fprintf (file, "a"); - else if (xcode == HIGH) - fprintf (file, "hu"); - break; - case IC_FSMBI: - case IC_FSMBI2: - case IC_IL2: - case IC_IL2s: - case IC_POOL: - abort (); - } - } - else - gcc_unreachable (); - return; - - case 'T': /* 128 bits, signed */ - case 'D': /* 64 bits, signed */ - case 'S': /* 32 bits, signed */ - if (CONSTANT_P (x)) - { - enum immediate_class c = classify_immediate (x, mode); - switch (c) - { - case IC_IL1: - constant_to_array (mode, x, arr); - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - switch (which_immediate_load (val)) - { - case SPU_IL: - case SPU_ILA: - break; - case SPU_ILH: - case SPU_ILHU: - val = trunc_int_for_mode (((arr[0] << 8) | arr[1]), HImode); - break; - default: - gcc_unreachable (); - } - fprintf (file, HOST_WIDE_INT_PRINT_DEC, val); - break; - case IC_FSMBI: - constant_to_array (mode, x, arr); - val = 0; - for (i = 0; i < 16; i++) - { - val <<= 1; - val |= arr[i] & 1; - } - print_operand (file, GEN_INT (val), 0); - break; - case IC_CPAT: - constant_to_array (mode, x, arr); - cpat_info (arr, GET_MODE_SIZE (mode), 0, &info); - fprintf (file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)info); - break; - case IC_IL1s: - if (xcode == HIGH) - x = XEXP (x, 0); - if (GET_CODE (x) == CONST_VECTOR) - x = CONST_VECTOR_ELT (x, 0); - output_addr_const (file, x); - if (xcode == HIGH) - fprintf (file, "@h"); - break; - case IC_IL2: - case IC_IL2s: - case IC_FSMBI2: - case IC_POOL: - abort (); - } - } - else - gcc_unreachable (); - return; - - case 'C': - if (xcode == CONST_INT) - { - /* Only 4 least significant bits are relevant for generate - control word instructions. */ - fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x) & 15); - return; - } - break; - - case 'M': /* print code for c*d */ - if (GET_CODE (x) == CONST_INT) - switch (INTVAL (x)) - { - case 1: - fprintf (file, "b"); - break; - case 2: - fprintf (file, "h"); - break; - case 4: - fprintf (file, "w"); - break; - case 8: - fprintf (file, "d"); - break; - default: - gcc_unreachable(); - } - else - gcc_unreachable(); - return; - - case 'N': /* Negate the operand */ - if (xcode == CONST_INT) - fprintf (file, HOST_WIDE_INT_PRINT_DEC, -INTVAL (x)); - else if (xcode == CONST_VECTOR) - fprintf (file, HOST_WIDE_INT_PRINT_DEC, - -INTVAL (CONST_VECTOR_ELT (x, 0))); - return; - - case 'I': /* enable/disable interrupts */ - if (xcode == CONST_INT) - fprintf (file, "%s", INTVAL (x) == 0 ? "d" : "e"); - return; - - case 'b': /* branch modifiers */ - if (xcode == REG) - fprintf (file, "%s", GET_MODE (x) == HImode ? "h" : ""); - else if (COMPARISON_P (x)) - fprintf (file, "%s", xcode == NE ? "n" : ""); - return; - - case 'i': /* indirect call */ - if (xcode == MEM) - { - if (GET_CODE (XEXP (x, 0)) == REG) - /* Used in indirect function calls. */ - fprintf (file, "%s", reg_names[REGNO (XEXP (x, 0))]); - else - output_address (GET_MODE (x), XEXP (x, 0)); - } - return; - - case 'p': /* load/store */ - if (xcode == MEM) - { - x = XEXP (x, 0); - xcode = GET_CODE (x); - } - if (xcode == AND) - { - x = XEXP (x, 0); - xcode = GET_CODE (x); - } - if (xcode == REG) - fprintf (file, "d"); - else if (xcode == CONST_INT) - fprintf (file, "a"); - else if (xcode == CONST || xcode == SYMBOL_REF || xcode == LABEL_REF) - fprintf (file, "r"); - else if (xcode == PLUS || xcode == LO_SUM) - { - if (GET_CODE (XEXP (x, 1)) == REG) - fprintf (file, "x"); - else - fprintf (file, "d"); - } - return; - - case 'e': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val &= 0x7; - output_addr_const (file, GEN_INT (val)); - return; - - case 'f': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val &= 0x1f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'g': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val &= 0x3f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'h': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val = (val >> 3) & 0x1f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'E': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val = -val; - val &= 0x7; - output_addr_const (file, GEN_INT (val)); - return; - - case 'F': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val = -val; - val &= 0x1f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'G': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val = -val; - val &= 0x3f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'H': - val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); - val = -(val & -8ll); - val = (val >> 3) & 0x1f; - output_addr_const (file, GEN_INT (val)); - return; - - case 'v': - case 'w': - constant_to_array (mode, x, arr); - val = (((arr[0] << 1) + (arr[1] >> 7)) & 0xff) - 127; - output_addr_const (file, GEN_INT (code == 'w' ? -val : val)); - return; - - case 0: - if (xcode == REG) - fprintf (file, "%s", reg_names[REGNO (x)]); - else if (xcode == MEM) - output_address (GET_MODE (x), XEXP (x, 0)); - else if (xcode == CONST_VECTOR) - print_operand (file, CONST_VECTOR_ELT (x, 0), 0); - else - output_addr_const (file, x); - return; - - /* unused letters - o qr u yz - AB OPQR UVWXYZ */ - default: - output_operand_lossage ("invalid %%xn code"); - } - gcc_unreachable (); -} - -/* For PIC mode we've reserved PIC_OFFSET_TABLE_REGNUM, which is a - caller saved register. For leaf functions it is more efficient to - use a volatile register because we won't need to save and restore the - pic register. This routine is only valid after register allocation - is completed, so we can pick an unused register. */ -static rtx -get_pic_reg (void) -{ - if (!reload_completed && !reload_in_progress) - abort (); - - /* If we've already made the decision, we need to keep with it. Once we've - decided to use LAST_ARG_REGNUM, future calls to df_regs_ever_live_p may - return true since the register is now live; this should not cause us to - "switch back" to using pic_offset_table_rtx. */ - if (!cfun->machine->pic_reg) - { - if (crtl->is_leaf && !df_regs_ever_live_p (LAST_ARG_REGNUM)) - cfun->machine->pic_reg = gen_rtx_REG (SImode, LAST_ARG_REGNUM); - else - cfun->machine->pic_reg = pic_offset_table_rtx; - } - - return cfun->machine->pic_reg; -} - -/* Split constant addresses to handle cases that are too large. - Add in the pic register when in PIC mode. - Split immediates that require more than 1 instruction. */ -int -spu_split_immediate (rtx * ops) -{ - machine_mode mode = GET_MODE (ops[0]); - enum immediate_class c = classify_immediate (ops[1], mode); - - switch (c) - { - case IC_IL2: - { - unsigned char arrhi[16]; - unsigned char arrlo[16]; - rtx to, temp, hi, lo; - int i; - /* We need to do reals as ints because the constant used in the - IOR might not be a legitimate real constant. */ - scalar_int_mode imode = int_mode_for_mode (mode).require (); - constant_to_array (mode, ops[1], arrhi); - if (imode != mode) - to = simplify_gen_subreg (imode, ops[0], mode, 0); - else - to = ops[0]; - temp = !can_create_pseudo_p () ? to : gen_reg_rtx (imode); - for (i = 0; i < 16; i += 4) - { - arrlo[i + 2] = arrhi[i + 2]; - arrlo[i + 3] = arrhi[i + 3]; - arrlo[i + 0] = arrlo[i + 1] = 0; - arrhi[i + 2] = arrhi[i + 3] = 0; - } - hi = array_to_constant (imode, arrhi); - lo = array_to_constant (imode, arrlo); - emit_move_insn (temp, hi); - emit_insn (gen_rtx_SET (to, gen_rtx_IOR (imode, temp, lo))); - return 1; - } - case IC_FSMBI2: - { - unsigned char arr_fsmbi[16]; - unsigned char arr_andbi[16]; - rtx to, reg_fsmbi, reg_and; - int i; - /* We need to do reals as ints because the constant used in the - * AND might not be a legitimate real constant. */ - scalar_int_mode imode = int_mode_for_mode (mode).require (); - constant_to_array (mode, ops[1], arr_fsmbi); - if (imode != mode) - to = simplify_gen_subreg(imode, ops[0], GET_MODE (ops[0]), 0); - else - to = ops[0]; - for (i = 0; i < 16; i++) - if (arr_fsmbi[i] != 0) - { - arr_andbi[0] = arr_fsmbi[i]; - arr_fsmbi[i] = 0xff; - } - for (i = 1; i < 16; i++) - arr_andbi[i] = arr_andbi[0]; - reg_fsmbi = array_to_constant (imode, arr_fsmbi); - reg_and = array_to_constant (imode, arr_andbi); - emit_move_insn (to, reg_fsmbi); - emit_insn (gen_rtx_SET (to, gen_rtx_AND (imode, to, reg_and))); - return 1; - } - case IC_POOL: - if (reload_in_progress || reload_completed) - { - rtx mem = force_const_mem (mode, ops[1]); - if (TARGET_LARGE_MEM) - { - rtx addr = gen_rtx_REG (Pmode, REGNO (ops[0])); - emit_move_insn (addr, XEXP (mem, 0)); - mem = replace_equiv_address (mem, addr); - } - emit_move_insn (ops[0], mem); - return 1; - } - break; - case IC_IL1s: - case IC_IL2s: - if (reload_completed && GET_CODE (ops[1]) != HIGH) - { - if (c == IC_IL2s) - { - emit_move_insn (ops[0], gen_rtx_HIGH (mode, ops[1])); - emit_move_insn (ops[0], gen_rtx_LO_SUM (mode, ops[0], ops[1])); - } - else if (flag_pic) - emit_insn (gen_pic (ops[0], ops[1])); - if (flag_pic) - { - rtx pic_reg = get_pic_reg (); - emit_insn (gen_addsi3 (ops[0], ops[0], pic_reg)); - } - return flag_pic || c == IC_IL2s; - } - break; - case IC_IL1: - case IC_FSMBI: - case IC_CPAT: - break; - } - return 0; -} - -/* SAVING is TRUE when we are generating the actual load and store - instructions for REGNO. When determining the size of the stack - needed for saving register we must allocate enough space for the - worst case, because we don't always have the information early enough - to not allocate it. But we can at least eliminate the actual loads - and stores during the prologue/epilogue. */ -static int -need_to_save_reg (int regno, int saving) -{ - if (df_regs_ever_live_p (regno) && !call_used_regs[regno]) - return 1; - if (flag_pic - && regno == PIC_OFFSET_TABLE_REGNUM - && (!saving || cfun->machine->pic_reg == pic_offset_table_rtx)) - return 1; - return 0; -} - -/* This function is only correct starting with local register - allocation */ -int -spu_saved_regs_size (void) -{ - int reg_save_size = 0; - int regno; - - for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; --regno) - if (need_to_save_reg (regno, 0)) - reg_save_size += 0x10; - return reg_save_size; -} - -static rtx_insn * -frame_emit_store (int regno, rtx addr, HOST_WIDE_INT offset) -{ - rtx reg = gen_rtx_REG (V4SImode, regno); - rtx mem = - gen_frame_mem (V4SImode, gen_rtx_PLUS (Pmode, addr, GEN_INT (offset))); - return emit_insn (gen_movv4si (mem, reg)); -} - -static rtx_insn * -frame_emit_load (int regno, rtx addr, HOST_WIDE_INT offset) -{ - rtx reg = gen_rtx_REG (V4SImode, regno); - rtx mem = - gen_frame_mem (V4SImode, gen_rtx_PLUS (Pmode, addr, GEN_INT (offset))); - return emit_insn (gen_movv4si (reg, mem)); -} - -/* This happens after reload, so we need to expand it. */ -static rtx_insn * -frame_emit_add_imm (rtx dst, rtx src, HOST_WIDE_INT imm, rtx scratch) -{ - rtx_insn *insn; - if (satisfies_constraint_K (GEN_INT (imm))) - { - insn = emit_insn (gen_addsi3 (dst, src, GEN_INT (imm))); - } - else - { - emit_insn (gen_movsi (scratch, gen_int_mode (imm, SImode))); - insn = emit_insn (gen_addsi3 (dst, src, scratch)); - if (REGNO (src) == REGNO (scratch)) - abort (); - } - return insn; -} - -/* Return nonzero if this function is known to have a null epilogue. */ - -int -direct_return (void) -{ - if (reload_completed) - { - if (cfun->static_chain_decl == 0 - && (spu_saved_regs_size () - + get_frame_size () - + crtl->outgoing_args_size - + crtl->args.pretend_args_size == 0) - && crtl->is_leaf) - return 1; - } - return 0; -} - -/* - The stack frame looks like this: - +-------------+ - | incoming | - | args | - AP -> +-------------+ - | $lr save | - +-------------+ - prev SP | back chain | - +-------------+ - | var args | - | reg save | crtl->args.pretend_args_size bytes - +-------------+ - | ... | - | saved regs | spu_saved_regs_size() bytes - FP -> +-------------+ - | ... | - | vars | get_frame_size() bytes - HFP -> +-------------+ - | ... | - | outgoing | - | args | crtl->outgoing_args_size bytes - +-------------+ - | $lr of next | - | frame | - +-------------+ - | back chain | - SP -> +-------------+ - -*/ -void -spu_expand_prologue (void) -{ - HOST_WIDE_INT size = get_frame_size (), offset, regno; - HOST_WIDE_INT total_size; - HOST_WIDE_INT saved_regs_size; - rtx sp_reg = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); - rtx scratch_reg_0, scratch_reg_1; - rtx_insn *insn; - rtx real; - - if (flag_pic && optimize == 0 && !cfun->machine->pic_reg) - cfun->machine->pic_reg = pic_offset_table_rtx; - - if (spu_naked_function_p (current_function_decl)) - return; - - scratch_reg_0 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 1); - scratch_reg_1 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 2); - - saved_regs_size = spu_saved_regs_size (); - total_size = size + saved_regs_size - + crtl->outgoing_args_size - + crtl->args.pretend_args_size; - - if (!crtl->is_leaf - || cfun->calls_alloca || total_size > 0) - total_size += STACK_POINTER_OFFSET; - - /* Save this first because code after this might use the link - register as a scratch register. */ - if (!crtl->is_leaf) - { - insn = frame_emit_store (LINK_REGISTER_REGNUM, sp_reg, 16); - RTX_FRAME_RELATED_P (insn) = 1; - } - - if (total_size > 0) - { - offset = -crtl->args.pretend_args_size; - for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) - if (need_to_save_reg (regno, 1)) - { - offset -= 16; - insn = frame_emit_store (regno, sp_reg, offset); - RTX_FRAME_RELATED_P (insn) = 1; - } - } - - if (flag_pic && cfun->machine->pic_reg) - { - rtx pic_reg = cfun->machine->pic_reg; - insn = emit_insn (gen_load_pic_offset (pic_reg, scratch_reg_0)); - insn = emit_insn (gen_subsi3 (pic_reg, pic_reg, scratch_reg_0)); - } - - if (total_size > 0) - { - if (flag_stack_check || flag_stack_clash_protection) - { - /* We compare against total_size-1 because - ($sp >= total_size) <=> ($sp > total_size-1) */ - rtx scratch_v4si = gen_rtx_REG (V4SImode, REGNO (scratch_reg_0)); - rtx sp_v4si = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); - rtx size_v4si = spu_const (V4SImode, total_size - 1); - if (!satisfies_constraint_K (GEN_INT (total_size - 1))) - { - emit_move_insn (scratch_v4si, size_v4si); - size_v4si = scratch_v4si; - } - emit_insn (gen_cgt_v4si (scratch_v4si, sp_v4si, size_v4si)); - emit_insn (gen_vec_extractv4sisi - (scratch_reg_0, scratch_v4si, GEN_INT (1))); - emit_insn (gen_spu_heq (scratch_reg_0, GEN_INT (0))); - } - - /* Adjust the stack pointer, and make sure scratch_reg_0 contains - the value of the previous $sp because we save it as the back - chain. */ - if (total_size <= 2000) - { - /* In this case we save the back chain first. */ - insn = frame_emit_store (STACK_POINTER_REGNUM, sp_reg, -total_size); - insn = - frame_emit_add_imm (sp_reg, sp_reg, -total_size, scratch_reg_0); - } - else - { - insn = emit_move_insn (scratch_reg_0, sp_reg); - insn = - frame_emit_add_imm (sp_reg, sp_reg, -total_size, scratch_reg_1); - } - RTX_FRAME_RELATED_P (insn) = 1; - real = gen_addsi3 (sp_reg, sp_reg, GEN_INT (-total_size)); - add_reg_note (insn, REG_FRAME_RELATED_EXPR, real); - - if (total_size > 2000) - { - /* Save the back chain ptr */ - insn = frame_emit_store (REGNO (scratch_reg_0), sp_reg, 0); - } - - if (frame_pointer_needed) - { - rtx fp_reg = gen_rtx_REG (Pmode, HARD_FRAME_POINTER_REGNUM); - HOST_WIDE_INT fp_offset = STACK_POINTER_OFFSET - + crtl->outgoing_args_size; - /* Set the new frame_pointer */ - insn = frame_emit_add_imm (fp_reg, sp_reg, fp_offset, scratch_reg_0); - RTX_FRAME_RELATED_P (insn) = 1; - real = gen_addsi3 (fp_reg, sp_reg, GEN_INT (fp_offset)); - add_reg_note (insn, REG_FRAME_RELATED_EXPR, real); - REGNO_POINTER_ALIGN (HARD_FRAME_POINTER_REGNUM) = STACK_BOUNDARY; - } - } - - if (flag_stack_usage_info) - current_function_static_stack_size = total_size; -} - -void -spu_expand_epilogue (bool sibcall_p) -{ - int size = get_frame_size (), offset, regno; - HOST_WIDE_INT saved_regs_size, total_size; - rtx sp_reg = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); - rtx scratch_reg_0; - - if (spu_naked_function_p (current_function_decl)) - return; - - scratch_reg_0 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 1); - - saved_regs_size = spu_saved_regs_size (); - total_size = size + saved_regs_size - + crtl->outgoing_args_size - + crtl->args.pretend_args_size; - - if (!crtl->is_leaf - || cfun->calls_alloca || total_size > 0) - total_size += STACK_POINTER_OFFSET; - - if (total_size > 0) - { - if (cfun->calls_alloca) - frame_emit_load (STACK_POINTER_REGNUM, sp_reg, 0); - else - frame_emit_add_imm (sp_reg, sp_reg, total_size, scratch_reg_0); - - - if (saved_regs_size > 0) - { - offset = -crtl->args.pretend_args_size; - for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) - if (need_to_save_reg (regno, 1)) - { - offset -= 0x10; - frame_emit_load (regno, sp_reg, offset); - } - } - } - - if (!crtl->is_leaf) - frame_emit_load (LINK_REGISTER_REGNUM, sp_reg, 16); - - if (!sibcall_p) - { - emit_use (gen_rtx_REG (SImode, LINK_REGISTER_REGNUM)); - emit_jump_insn (gen__return ()); - } -} - -rtx -spu_return_addr (int count, rtx frame ATTRIBUTE_UNUSED) -{ - if (count != 0) - return 0; - /* This is inefficient because it ends up copying to a save-register - which then gets saved even though $lr has already been saved. But - it does generate better code for leaf functions and we don't need - to use RETURN_ADDRESS_POINTER_REGNUM to get it working. It's only - used for __builtin_return_address anyway, so maybe we don't care if - it's inefficient. */ - return get_hard_reg_initial_val (Pmode, LINK_REGISTER_REGNUM); -} - - -/* Given VAL, generate a constant appropriate for MODE. - If MODE is a vector mode, every element will be VAL. - For TImode, VAL will be zero extended to 128 bits. */ -rtx -spu_const (machine_mode mode, HOST_WIDE_INT val) -{ - rtx inner; - - gcc_assert (GET_MODE_CLASS (mode) == MODE_INT - || GET_MODE_CLASS (mode) == MODE_FLOAT - || GET_MODE_CLASS (mode) == MODE_VECTOR_INT - || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT); - - if (GET_MODE_CLASS (mode) == MODE_INT) - return immed_double_const (val, 0, mode); - - /* val is the bit representation of the float */ - if (GET_MODE_CLASS (mode) == MODE_FLOAT) - return hwint_to_const_double (mode, val); - - if (GET_MODE_CLASS (mode) == MODE_VECTOR_INT) - inner = immed_double_const (val, 0, GET_MODE_INNER (mode)); - else - inner = hwint_to_const_double (GET_MODE_INNER (mode), val); - - return gen_const_vec_duplicate (mode, inner); -} - -/* Create a MODE vector constant from 4 ints. */ -rtx -spu_const_from_ints(machine_mode mode, int a, int b, int c, int d) -{ - unsigned char arr[16]; - arr[0] = (a >> 24) & 0xff; - arr[1] = (a >> 16) & 0xff; - arr[2] = (a >> 8) & 0xff; - arr[3] = (a >> 0) & 0xff; - arr[4] = (b >> 24) & 0xff; - arr[5] = (b >> 16) & 0xff; - arr[6] = (b >> 8) & 0xff; - arr[7] = (b >> 0) & 0xff; - arr[8] = (c >> 24) & 0xff; - arr[9] = (c >> 16) & 0xff; - arr[10] = (c >> 8) & 0xff; - arr[11] = (c >> 0) & 0xff; - arr[12] = (d >> 24) & 0xff; - arr[13] = (d >> 16) & 0xff; - arr[14] = (d >> 8) & 0xff; - arr[15] = (d >> 0) & 0xff; - return array_to_constant(mode, arr); -} - -/* branch hint stuff */ - -/* An array of these is used to propagate hints to predecessor blocks. */ -struct spu_bb_info -{ - rtx_insn *prop_jump; /* propagated from another block */ - int bb_index; /* the original block. */ -}; -static struct spu_bb_info *spu_bb_info; - -#define STOP_HINT_P(INSN) \ - (CALL_P(INSN) \ - || INSN_CODE(INSN) == CODE_FOR_divmodsi4 \ - || INSN_CODE(INSN) == CODE_FOR_udivmodsi4) - -/* 1 when RTX is a hinted branch or its target. We keep track of - what has been hinted so the safe-hint code can test it easily. */ -#define HINTED_P(RTX) \ - (RTL_FLAG_CHECK3("HINTED_P", (RTX), CODE_LABEL, JUMP_INSN, CALL_INSN)->unchanging) - -/* 1 when RTX is an insn that must be scheduled on an even boundary. */ -#define SCHED_ON_EVEN_P(RTX) \ - (RTL_FLAG_CHECK2("SCHED_ON_EVEN_P", (RTX), JUMP_INSN, CALL_INSN)->in_struct) - -/* Emit a nop for INSN such that the two will dual issue. This assumes - INSN is 8-byte aligned. When INSN is inline asm we emit an lnop. - We check for TImode to handle a MULTI1 insn which has dual issued its - first instruction. get_pipe returns -1 for MULTI0 or inline asm. */ -static void -emit_nop_for_insn (rtx_insn *insn) -{ - int p; - rtx_insn *new_insn; - - /* We need to handle JUMP_TABLE_DATA separately. */ - if (JUMP_TABLE_DATA_P (insn)) - { - new_insn = emit_insn_after (gen_lnop(), insn); - recog_memoized (new_insn); - INSN_LOCATION (new_insn) = UNKNOWN_LOCATION; - return; - } - - p = get_pipe (insn); - if ((CALL_P (insn) || JUMP_P (insn)) && SCHED_ON_EVEN_P (insn)) - new_insn = emit_insn_after (gen_lnop (), insn); - else if (p == 1 && GET_MODE (insn) == TImode) - { - new_insn = emit_insn_before (gen_nopn (GEN_INT (127)), insn); - PUT_MODE (new_insn, TImode); - PUT_MODE (insn, VOIDmode); - } - else - new_insn = emit_insn_after (gen_lnop (), insn); - recog_memoized (new_insn); - INSN_LOCATION (new_insn) = INSN_LOCATION (insn); -} - -/* Insert nops in basic blocks to meet dual issue alignment - requirements. Also make sure hbrp and hint instructions are at least - one cycle apart, possibly inserting a nop. */ -static void -pad_bb(void) -{ - rtx_insn *insn, *next_insn, *prev_insn, *hbr_insn = 0; - int length; - int addr; - - /* This sets up INSN_ADDRESSES. */ - shorten_branches (get_insns ()); - - /* Keep track of length added by nops. */ - length = 0; - - prev_insn = 0; - insn = get_insns (); - if (!active_insn_p (insn)) - insn = next_active_insn (insn); - for (; insn; insn = next_insn) - { - next_insn = next_active_insn (insn); - if (INSN_P (insn) - && (INSN_CODE (insn) == CODE_FOR_iprefetch - || INSN_CODE (insn) == CODE_FOR_hbr)) - { - if (hbr_insn) - { - int a0 = INSN_ADDRESSES (INSN_UID (hbr_insn)); - int a1 = INSN_ADDRESSES (INSN_UID (insn)); - if ((a1 - a0 == 8 && GET_MODE (insn) != TImode) - || (a1 - a0 == 4)) - { - prev_insn = emit_insn_before (gen_lnop (), insn); - PUT_MODE (prev_insn, GET_MODE (insn)); - PUT_MODE (insn, TImode); - INSN_LOCATION (prev_insn) = INSN_LOCATION (insn); - length += 4; - } - } - hbr_insn = insn; - } - if (INSN_P (insn) && INSN_CODE (insn) == CODE_FOR_blockage && next_insn) - { - if (GET_MODE (insn) == TImode) - PUT_MODE (next_insn, TImode); - insn = next_insn; - next_insn = next_active_insn (insn); - } - addr = INSN_ADDRESSES (INSN_UID (insn)); - if ((CALL_P (insn) || JUMP_P (insn)) && SCHED_ON_EVEN_P (insn)) - { - if (((addr + length) & 7) != 0) - { - emit_nop_for_insn (prev_insn); - length += 4; - } - } - else if (GET_MODE (insn) == TImode - && ((next_insn && GET_MODE (next_insn) != TImode) - || get_attr_type (insn) == TYPE_MULTI0) - && ((addr + length) & 7) != 0) - { - /* prev_insn will always be set because the first insn is - always 8-byte aligned. */ - emit_nop_for_insn (prev_insn); - length += 4; - } - prev_insn = insn; - } -} - - -/* Routines for branch hints. */ - -static void -spu_emit_branch_hint (rtx_insn *before, rtx_insn *branch, rtx target, - int distance, sbitmap blocks) -{ - rtx_insn *hint; - rtx_insn *insn; - rtx_jump_table_data *table; - - if (before == 0 || branch == 0 || target == 0) - return; - - /* While scheduling we require hints to be no further than 600, so - we need to enforce that here too */ - if (distance > 600) - return; - - /* If we have a Basic block note, emit it after the basic block note. */ - if (NOTE_INSN_BASIC_BLOCK_P (before)) - before = NEXT_INSN (before); - - rtx_code_label *branch_label = gen_label_rtx (); - LABEL_NUSES (branch_label)++; - LABEL_PRESERVE_P (branch_label) = 1; - insn = emit_label_before (branch_label, branch); - rtx branch_label_ref = gen_rtx_LABEL_REF (VOIDmode, branch_label); - bitmap_set_bit (blocks, BLOCK_FOR_INSN (branch)->index); - - hint = emit_insn_before (gen_hbr (branch_label_ref, target), before); - recog_memoized (hint); - INSN_LOCATION (hint) = INSN_LOCATION (branch); - HINTED_P (branch) = 1; - - if (GET_CODE (target) == LABEL_REF) - HINTED_P (XEXP (target, 0)) = 1; - else if (tablejump_p (branch, 0, &table)) - { - rtvec vec; - int j; - if (GET_CODE (PATTERN (table)) == ADDR_VEC) - vec = XVEC (PATTERN (table), 0); - else - vec = XVEC (PATTERN (table), 1); - for (j = GET_NUM_ELEM (vec) - 1; j >= 0; --j) - HINTED_P (XEXP (RTVEC_ELT (vec, j), 0)) = 1; - } - - if (distance >= 588) - { - /* Make sure the hint isn't scheduled any earlier than this point, - which could make it too far for the branch offest to fit */ - insn = emit_insn_before (gen_blockage (), hint); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (hint); - } - else if (distance <= 8 * 4) - { - /* To guarantee at least 8 insns between the hint and branch we - insert nops. */ - int d; - for (d = distance; d < 8 * 4; d += 4) - { - insn = - emit_insn_after (gen_nopn_nv (gen_rtx_REG (SImode, 127)), hint); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (hint); - } - - /* Make sure any nops inserted aren't scheduled before the hint. */ - insn = emit_insn_after (gen_blockage (), hint); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (hint); - - /* Make sure any nops inserted aren't scheduled after the call. */ - if (CALL_P (branch) && distance < 8 * 4) - { - insn = emit_insn_before (gen_blockage (), branch); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (branch); - } - } -} - -/* Returns 0 if we don't want a hint for this branch. Otherwise return - the rtx for the branch target. */ -static rtx -get_branch_target (rtx_insn *branch) -{ - if (JUMP_P (branch)) - { - rtx set, src; - - /* Return statements */ - if (GET_CODE (PATTERN (branch)) == RETURN) - return gen_rtx_REG (SImode, LINK_REGISTER_REGNUM); - - /* ASM GOTOs. */ - if (extract_asm_operands (PATTERN (branch)) != NULL) - return NULL; - - set = single_set (branch); - src = SET_SRC (set); - if (GET_CODE (SET_DEST (set)) != PC) - abort (); - - if (GET_CODE (src) == IF_THEN_ELSE) - { - rtx lab = 0; - rtx note = find_reg_note (branch, REG_BR_PROB, 0); - if (note) - { - /* If the more probable case is not a fall through, then - try a branch hint. */ - int prob = profile_probability::from_reg_br_prob_note - (XINT (note, 0)).to_reg_br_prob_base (); - if (prob > (REG_BR_PROB_BASE * 6 / 10) - && GET_CODE (XEXP (src, 1)) != PC) - lab = XEXP (src, 1); - else if (prob < (REG_BR_PROB_BASE * 4 / 10) - && GET_CODE (XEXP (src, 2)) != PC) - lab = XEXP (src, 2); - } - if (lab) - { - if (GET_CODE (lab) == RETURN) - return gen_rtx_REG (SImode, LINK_REGISTER_REGNUM); - return lab; - } - return 0; - } - - return src; - } - else if (CALL_P (branch)) - { - rtx call; - /* All of our call patterns are in a PARALLEL and the CALL is - the first pattern in the PARALLEL. */ - if (GET_CODE (PATTERN (branch)) != PARALLEL) - abort (); - call = XVECEXP (PATTERN (branch), 0, 0); - if (GET_CODE (call) == SET) - call = SET_SRC (call); - if (GET_CODE (call) != CALL) - abort (); - return XEXP (XEXP (call, 0), 0); - } - return 0; -} - -/* The special $hbr register is used to prevent the insn scheduler from - moving hbr insns across instructions which invalidate them. It - should only be used in a clobber, and this function searches for - insns which clobber it. */ -static bool -insn_clobbers_hbr (rtx_insn *insn) -{ - if (INSN_P (insn) - && GET_CODE (PATTERN (insn)) == PARALLEL) - { - rtx parallel = PATTERN (insn); - rtx clobber; - int j; - for (j = XVECLEN (parallel, 0) - 1; j >= 0; j--) - { - clobber = XVECEXP (parallel, 0, j); - if (GET_CODE (clobber) == CLOBBER - && GET_CODE (XEXP (clobber, 0)) == REG - && REGNO (XEXP (clobber, 0)) == HBR_REGNUM) - return 1; - } - } - return 0; -} - -/* Search up to 32 insns starting at FIRST: - - at any kind of hinted branch, just return - - at any unconditional branch in the first 15 insns, just return - - at a call or indirect branch, after the first 15 insns, force it to - an even address and return - - at any unconditional branch, after the first 15 insns, force it to - an even address. - At then end of the search, insert an hbrp within 4 insns of FIRST, - and an hbrp within 16 instructions of FIRST. - */ -static void -insert_hbrp_for_ilb_runout (rtx_insn *first) -{ - rtx_insn *insn, *before_4 = 0, *before_16 = 0; - int addr = 0, length, first_addr = -1; - int hbrp_addr0 = 128 * 4, hbrp_addr1 = 128 * 4; - int insert_lnop_after = 0; - for (insn = first; insn; insn = NEXT_INSN (insn)) - if (INSN_P (insn)) - { - if (first_addr == -1) - first_addr = INSN_ADDRESSES (INSN_UID (insn)); - addr = INSN_ADDRESSES (INSN_UID (insn)) - first_addr; - length = get_attr_length (insn); - - if (before_4 == 0 && addr + length >= 4 * 4) - before_4 = insn; - /* We test for 14 instructions because the first hbrp will add - up to 2 instructions. */ - if (before_16 == 0 && addr + length >= 14 * 4) - before_16 = insn; - - if (INSN_CODE (insn) == CODE_FOR_hbr) - { - /* Make sure an hbrp is at least 2 cycles away from a hint. - Insert an lnop after the hbrp when necessary. */ - if (before_4 == 0 && addr > 0) - { - before_4 = insn; - insert_lnop_after |= 1; - } - else if (before_4 && addr <= 4 * 4) - insert_lnop_after |= 1; - if (before_16 == 0 && addr > 10 * 4) - { - before_16 = insn; - insert_lnop_after |= 2; - } - else if (before_16 && addr <= 14 * 4) - insert_lnop_after |= 2; - } - - if (INSN_CODE (insn) == CODE_FOR_iprefetch) - { - if (addr < hbrp_addr0) - hbrp_addr0 = addr; - else if (addr < hbrp_addr1) - hbrp_addr1 = addr; - } - - if (CALL_P (insn) || JUMP_P (insn)) - { - if (HINTED_P (insn)) - return; - - /* Any branch after the first 15 insns should be on an even - address to avoid a special case branch. There might be - some nops and/or hbrps inserted, so we test after 10 - insns. */ - if (addr > 10 * 4) - SCHED_ON_EVEN_P (insn) = 1; - } - - if (CALL_P (insn) || tablejump_p (insn, 0, 0)) - return; - - - if (addr + length >= 32 * 4) - { - gcc_assert (before_4 && before_16); - if (hbrp_addr0 > 4 * 4) - { - insn = - emit_insn_before (gen_iprefetch (GEN_INT (1)), before_4); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (before_4); - INSN_ADDRESSES_NEW (insn, - INSN_ADDRESSES (INSN_UID (before_4))); - PUT_MODE (insn, GET_MODE (before_4)); - PUT_MODE (before_4, TImode); - if (insert_lnop_after & 1) - { - insn = emit_insn_before (gen_lnop (), before_4); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (before_4); - INSN_ADDRESSES_NEW (insn, - INSN_ADDRESSES (INSN_UID (before_4))); - PUT_MODE (insn, TImode); - } - } - if ((hbrp_addr0 <= 4 * 4 || hbrp_addr0 > 16 * 4) - && hbrp_addr1 > 16 * 4) - { - insn = - emit_insn_before (gen_iprefetch (GEN_INT (2)), before_16); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (before_16); - INSN_ADDRESSES_NEW (insn, - INSN_ADDRESSES (INSN_UID (before_16))); - PUT_MODE (insn, GET_MODE (before_16)); - PUT_MODE (before_16, TImode); - if (insert_lnop_after & 2) - { - insn = emit_insn_before (gen_lnop (), before_16); - recog_memoized (insn); - INSN_LOCATION (insn) = INSN_LOCATION (before_16); - INSN_ADDRESSES_NEW (insn, - INSN_ADDRESSES (INSN_UID - (before_16))); - PUT_MODE (insn, TImode); - } - } - return; - } - } - else if (BARRIER_P (insn)) - return; - -} - -/* The SPU might hang when it executes 48 inline instructions after a - hinted branch jumps to its hinted target. The beginning of a - function and the return from a call might have been hinted, and - must be handled as well. To prevent a hang we insert 2 hbrps. The - first should be within 6 insns of the branch target. The second - should be within 22 insns of the branch target. When determining - if hbrps are necessary, we look for only 32 inline instructions, - because up to 12 nops and 4 hbrps could be inserted. Similarily, - when inserting new hbrps, we insert them within 4 and 16 insns of - the target. */ -static void -insert_hbrp (void) -{ - rtx_insn *insn; - if (TARGET_SAFE_HINTS) - { - shorten_branches (get_insns ()); - /* Insert hbrp at beginning of function */ - insn = next_active_insn (get_insns ()); - if (insn) - insert_hbrp_for_ilb_runout (insn); - /* Insert hbrp after hinted targets. */ - for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) - if ((LABEL_P (insn) && HINTED_P (insn)) || CALL_P (insn)) - insert_hbrp_for_ilb_runout (next_active_insn (insn)); - } -} - -static int in_spu_reorg; - -static void -spu_var_tracking (void) -{ - if (flag_var_tracking) - { - df_analyze (); - timevar_push (TV_VAR_TRACKING); - variable_tracking_main (); - timevar_pop (TV_VAR_TRACKING); - df_finish_pass (false); - } -} - -/* Insert branch hints. There are no branch optimizations after this - pass, so it's safe to set our branch hints now. */ -static void -spu_machine_dependent_reorg (void) -{ - sbitmap blocks; - basic_block bb; - rtx_insn *branch, *insn; - rtx branch_target = 0; - int branch_addr = 0, insn_addr, required_dist = 0; - int i; - unsigned int j; - - if (!TARGET_BRANCH_HINTS || optimize == 0) - { - /* We still do it for unoptimized code because an external - function might have hinted a call or return. */ - compute_bb_for_insn (); - insert_hbrp (); - pad_bb (); - spu_var_tracking (); - free_bb_for_insn (); - return; - } - - blocks = sbitmap_alloc (last_basic_block_for_fn (cfun)); - bitmap_clear (blocks); - - in_spu_reorg = 1; - compute_bb_for_insn (); - - /* (Re-)discover loops so that bb->loop_father can be used - in the analysis below. */ - loop_optimizer_init (AVOID_CFG_MODIFICATIONS); - - compact_blocks (); - - spu_bb_info = - (struct spu_bb_info *) xcalloc (n_basic_blocks_for_fn (cfun), - sizeof (struct spu_bb_info)); - - /* We need exact insn addresses and lengths. */ - shorten_branches (get_insns ()); - - for (i = n_basic_blocks_for_fn (cfun) - 1; i >= 0; i--) - { - bb = BASIC_BLOCK_FOR_FN (cfun, i); - branch = 0; - if (spu_bb_info[i].prop_jump) - { - branch = spu_bb_info[i].prop_jump; - branch_target = get_branch_target (branch); - branch_addr = INSN_ADDRESSES (INSN_UID (branch)); - required_dist = spu_hint_dist; - } - /* Search from end of a block to beginning. In this loop, find - jumps which need a branch and emit them only when: - - it's an indirect branch and we're at the insn which sets - the register - - we're at an insn that will invalidate the hint. e.g., a - call, another hint insn, inline asm that clobbers $hbr, and - some inlined operations (divmodsi4). Don't consider jumps - because they are only at the end of a block and are - considered when we are deciding whether to propagate - - we're getting too far away from the branch. The hbr insns - only have a signed 10 bit offset - We go back as far as possible so the branch will be considered - for propagation when we get to the beginning of the block. */ - for (insn = BB_END (bb); insn; insn = PREV_INSN (insn)) - { - if (INSN_P (insn)) - { - insn_addr = INSN_ADDRESSES (INSN_UID (insn)); - if (branch - && ((GET_CODE (branch_target) == REG - && set_of (branch_target, insn) != NULL_RTX) - || insn_clobbers_hbr (insn) - || branch_addr - insn_addr > 600)) - { - rtx_insn *next = NEXT_INSN (insn); - int next_addr = INSN_ADDRESSES (INSN_UID (next)); - if (insn != BB_END (bb) - && branch_addr - next_addr >= required_dist) - { - if (dump_file) - fprintf (dump_file, - "hint for %i in block %i before %i\n", - INSN_UID (branch), bb->index, - INSN_UID (next)); - spu_emit_branch_hint (next, branch, branch_target, - branch_addr - next_addr, blocks); - } - branch = 0; - } - - /* JUMP_P will only be true at the end of a block. When - branch is already set it means we've previously decided - to propagate a hint for that branch into this block. */ - if (CALL_P (insn) || (JUMP_P (insn) && !branch)) - { - branch = 0; - if ((branch_target = get_branch_target (insn))) - { - branch = insn; - branch_addr = insn_addr; - required_dist = spu_hint_dist; - } - } - } - if (insn == BB_HEAD (bb)) - break; - } - - if (branch) - { - /* If we haven't emitted a hint for this branch yet, it might - be profitable to emit it in one of the predecessor blocks, - especially for loops. */ - rtx_insn *bbend; - basic_block prev = 0, prop = 0, prev2 = 0; - int loop_exit = 0, simple_loop = 0; - int next_addr = INSN_ADDRESSES (INSN_UID (NEXT_INSN (insn))); - - for (j = 0; j < EDGE_COUNT (bb->preds); j++) - if (EDGE_PRED (bb, j)->flags & EDGE_FALLTHRU) - prev = EDGE_PRED (bb, j)->src; - else - prev2 = EDGE_PRED (bb, j)->src; - - for (j = 0; j < EDGE_COUNT (bb->succs); j++) - if (EDGE_SUCC (bb, j)->flags & EDGE_LOOP_EXIT) - loop_exit = 1; - else if (EDGE_SUCC (bb, j)->dest == bb) - simple_loop = 1; - - /* If this branch is a loop exit then propagate to previous - fallthru block. This catches the cases when it is a simple - loop or when there is an initial branch into the loop. */ - if (prev && (loop_exit || simple_loop) - && bb_loop_depth (prev) <= bb_loop_depth (bb)) - prop = prev; - - /* If there is only one adjacent predecessor. Don't propagate - outside this loop. */ - else if (prev && single_pred_p (bb) - && prev->loop_father == bb->loop_father) - prop = prev; - - /* If this is the JOIN block of a simple IF-THEN then - propagate the hint to the HEADER block. */ - else if (prev && prev2 - && EDGE_COUNT (bb->preds) == 2 - && EDGE_COUNT (prev->preds) == 1 - && EDGE_PRED (prev, 0)->src == prev2 - && prev2->loop_father == bb->loop_father - && GET_CODE (branch_target) != REG) - prop = prev; - - /* Don't propagate when: - - this is a simple loop and the hint would be too far - - this is not a simple loop and there are 16 insns in - this block already - - the predecessor block ends in a branch that will be - hinted - - the predecessor block ends in an insn that invalidates - the hint */ - if (prop - && prop->index >= 0 - && (bbend = BB_END (prop)) - && branch_addr - INSN_ADDRESSES (INSN_UID (bbend)) < - (simple_loop ? 600 : 16 * 4) && get_branch_target (bbend) == 0 - && (JUMP_P (bbend) || !insn_clobbers_hbr (bbend))) - { - if (dump_file) - fprintf (dump_file, "propagate from %i to %i (loop depth %i) " - "for %i (loop_exit %i simple_loop %i dist %i)\n", - bb->index, prop->index, bb_loop_depth (bb), - INSN_UID (branch), loop_exit, simple_loop, - branch_addr - INSN_ADDRESSES (INSN_UID (bbend))); - - spu_bb_info[prop->index].prop_jump = branch; - spu_bb_info[prop->index].bb_index = i; - } - else if (branch_addr - next_addr >= required_dist) - { - if (dump_file) - fprintf (dump_file, "hint for %i in block %i before %i\n", - INSN_UID (branch), bb->index, - INSN_UID (NEXT_INSN (insn))); - spu_emit_branch_hint (NEXT_INSN (insn), branch, branch_target, - branch_addr - next_addr, blocks); - } - branch = 0; - } - } - free (spu_bb_info); - - if (!bitmap_empty_p (blocks)) - find_many_sub_basic_blocks (blocks); - - /* We have to schedule to make sure alignment is ok. */ - FOR_EACH_BB_FN (bb, cfun) bb->flags &= ~BB_DISABLE_SCHEDULE; - - /* The hints need to be scheduled, so call it again. */ - schedule_insns (); - df_finish_pass (true); - - insert_hbrp (); - - pad_bb (); - - for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) - if (NONJUMP_INSN_P (insn) && INSN_CODE (insn) == CODE_FOR_hbr) - { - /* Adjust the LABEL_REF in a hint when we have inserted a nop - between its branch label and the branch . We don't move the - label because GCC expects it at the beginning of the block. */ - rtx unspec = SET_SRC (XVECEXP (PATTERN (insn), 0, 0)); - rtx label_ref = XVECEXP (unspec, 0, 0); - rtx_insn *label = as_a <rtx_insn *> (XEXP (label_ref, 0)); - rtx_insn *branch; - int offset = 0; - for (branch = NEXT_INSN (label); - !JUMP_P (branch) && !CALL_P (branch); - branch = NEXT_INSN (branch)) - if (NONJUMP_INSN_P (branch)) - offset += get_attr_length (branch); - if (offset > 0) - XVECEXP (unspec, 0, 0) = plus_constant (Pmode, label_ref, offset); - } - - spu_var_tracking (); - - loop_optimizer_finalize (); - - free_bb_for_insn (); - - in_spu_reorg = 0; -} - - -/* Insn scheduling routines, primarily for dual issue. */ -static int -spu_sched_issue_rate (void) -{ - return 2; -} - -static int -uses_ls_unit(rtx_insn *insn) -{ - rtx set = single_set (insn); - if (set != 0 - && (GET_CODE (SET_DEST (set)) == MEM - || GET_CODE (SET_SRC (set)) == MEM)) - return 1; - return 0; -} - -static int -get_pipe (rtx_insn *insn) -{ - enum attr_type t; - /* Handle inline asm */ - if (INSN_CODE (insn) == -1) - return -1; - t = get_attr_type (insn); - switch (t) - { - case TYPE_CONVERT: - return -2; - case TYPE_MULTI0: - return -1; - - case TYPE_FX2: - case TYPE_FX3: - case TYPE_SPR: - case TYPE_NOP: - case TYPE_FXB: - case TYPE_FPD: - case TYPE_FP6: - case TYPE_FP7: - return 0; - - case TYPE_LNOP: - case TYPE_SHUF: - case TYPE_LOAD: - case TYPE_STORE: - case TYPE_BR: - case TYPE_MULTI1: - case TYPE_HBR: - case TYPE_IPREFETCH: - return 1; - default: - abort (); - } -} - - -/* haifa-sched.c has a static variable that keeps track of the current - cycle. It is passed to spu_sched_reorder, and we record it here for - use by spu_sched_variable_issue. It won't be accurate if the - scheduler updates it's clock_var between the two calls. */ -static int clock_var; - -/* This is used to keep track of insn alignment. Set to 0 at the - beginning of each block and increased by the "length" attr of each - insn scheduled. */ -static int spu_sched_length; - -/* Record when we've issued pipe0 and pipe1 insns so we can reorder the - ready list appropriately in spu_sched_reorder(). */ -static int pipe0_clock; -static int pipe1_clock; - -static int prev_clock_var; - -static int prev_priority; - -/* The SPU needs to load the next ilb sometime during the execution of - the previous ilb. There is a potential conflict if every cycle has a - load or store. To avoid the conflict we make sure the load/store - unit is free for at least one cycle during the execution of insns in - the previous ilb. */ -static int spu_ls_first; -static int prev_ls_clock; - -static void -spu_sched_init_global (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, - int max_ready ATTRIBUTE_UNUSED) -{ - spu_sched_length = 0; -} - -static void -spu_sched_init (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, - int max_ready ATTRIBUTE_UNUSED) -{ - if (align_labels.levels[0].get_value () > 4 - || align_loops.levels[0].get_value () > 4 - || align_jumps.levels[0].get_value () > 4) - { - /* When any block might be at least 8-byte aligned, assume they - will all be at least 8-byte aligned to make sure dual issue - works out correctly. */ - spu_sched_length = 0; - } - spu_ls_first = INT_MAX; - clock_var = -1; - prev_ls_clock = -1; - pipe0_clock = -1; - pipe1_clock = -1; - prev_clock_var = -1; - prev_priority = -1; -} - -static int -spu_sched_variable_issue (FILE *file ATTRIBUTE_UNUSED, - int verbose ATTRIBUTE_UNUSED, - rtx_insn *insn, int more) -{ - int len; - int p; - if (GET_CODE (PATTERN (insn)) == USE - || GET_CODE (PATTERN (insn)) == CLOBBER - || (len = get_attr_length (insn)) == 0) - return more; - - spu_sched_length += len; - - /* Reset on inline asm */ - if (INSN_CODE (insn) == -1) - { - spu_ls_first = INT_MAX; - pipe0_clock = -1; - pipe1_clock = -1; - return 0; - } - p = get_pipe (insn); - if (p == 0) - pipe0_clock = clock_var; - else - pipe1_clock = clock_var; - - if (in_spu_reorg) - { - if (clock_var - prev_ls_clock > 1 - || INSN_CODE (insn) == CODE_FOR_iprefetch) - spu_ls_first = INT_MAX; - if (uses_ls_unit (insn)) - { - if (spu_ls_first == INT_MAX) - spu_ls_first = spu_sched_length; - prev_ls_clock = clock_var; - } - - /* The scheduler hasn't inserted the nop, but we will later on. - Include those nops in spu_sched_length. */ - if (prev_clock_var == clock_var && (spu_sched_length & 7)) - spu_sched_length += 4; - prev_clock_var = clock_var; - - /* more is -1 when called from spu_sched_reorder for new insns - that don't have INSN_PRIORITY */ - if (more >= 0) - prev_priority = INSN_PRIORITY (insn); - } - - /* Always try issuing more insns. spu_sched_reorder will decide - when the cycle should be advanced. */ - return 1; -} - -/* This function is called for both TARGET_SCHED_REORDER and - TARGET_SCHED_REORDER2. */ -static int -spu_sched_reorder (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, - rtx_insn **ready, int *nreadyp, int clock) -{ - int i, nready = *nreadyp; - int pipe_0, pipe_1, pipe_hbrp, pipe_ls, schedule_i; - rtx_insn *insn; - - clock_var = clock; - - if (nready <= 0 || pipe1_clock >= clock) - return 0; - - /* Find any rtl insns that don't generate assembly insns and schedule - them first. */ - for (i = nready - 1; i >= 0; i--) - { - insn = ready[i]; - if (INSN_CODE (insn) == -1 - || INSN_CODE (insn) == CODE_FOR_blockage - || (INSN_P (insn) && get_attr_length (insn) == 0)) - { - ready[i] = ready[nready - 1]; - ready[nready - 1] = insn; - return 1; - } - } - - pipe_0 = pipe_1 = pipe_hbrp = pipe_ls = schedule_i = -1; - for (i = 0; i < nready; i++) - if (INSN_CODE (ready[i]) != -1) - { - insn = ready[i]; - switch (get_attr_type (insn)) - { - default: - case TYPE_MULTI0: - case TYPE_CONVERT: - case TYPE_FX2: - case TYPE_FX3: - case TYPE_SPR: - case TYPE_NOP: - case TYPE_FXB: - case TYPE_FPD: - case TYPE_FP6: - case TYPE_FP7: - pipe_0 = i; - break; - case TYPE_LOAD: - case TYPE_STORE: - pipe_ls = i; - /* FALLTHRU */ - case TYPE_LNOP: - case TYPE_SHUF: - case TYPE_BR: - case TYPE_MULTI1: - case TYPE_HBR: - pipe_1 = i; - break; - case TYPE_IPREFETCH: - pipe_hbrp = i; - break; - } - } - - /* In the first scheduling phase, schedule loads and stores together - to increase the chance they will get merged during postreload CSE. */ - if (!reload_completed && pipe_ls >= 0) - { - insn = ready[pipe_ls]; - ready[pipe_ls] = ready[nready - 1]; - ready[nready - 1] = insn; - return 1; - } - - /* If there is an hbrp ready, prefer it over other pipe 1 insns. */ - if (pipe_hbrp >= 0) - pipe_1 = pipe_hbrp; - - /* When we have loads/stores in every cycle of the last 15 insns and - we are about to schedule another load/store, emit an hbrp insn - instead. */ - if (in_spu_reorg - && spu_sched_length - spu_ls_first >= 4 * 15 - && !(pipe0_clock < clock && pipe_0 >= 0) && pipe_1 == pipe_ls) - { - insn = sched_emit_insn (gen_iprefetch (GEN_INT (3))); - recog_memoized (insn); - if (pipe0_clock < clock) - PUT_MODE (insn, TImode); - spu_sched_variable_issue (file, verbose, insn, -1); - return 0; - } - - /* In general, we want to emit nops to increase dual issue, but dual - issue isn't faster when one of the insns could be scheduled later - without effecting the critical path. We look at INSN_PRIORITY to - make a good guess, but it isn't perfect so -mdual-nops=n can be - used to effect it. */ - if (in_spu_reorg && spu_dual_nops < 10) - { - /* When we are at an even address and we are not issuing nops to - improve scheduling then we need to advance the cycle. */ - if ((spu_sched_length & 7) == 0 && prev_clock_var == clock - && (spu_dual_nops == 0 - || (pipe_1 != -1 - && prev_priority > - INSN_PRIORITY (ready[pipe_1]) + spu_dual_nops))) - return 0; - - /* When at an odd address, schedule the highest priority insn - without considering pipeline. */ - if ((spu_sched_length & 7) == 4 && prev_clock_var != clock - && (spu_dual_nops == 0 - || (prev_priority > - INSN_PRIORITY (ready[nready - 1]) + spu_dual_nops))) - return 1; - } - - - /* We haven't issued a pipe0 insn yet this cycle, if there is a - pipe0 insn in the ready list, schedule it. */ - if (pipe0_clock < clock && pipe_0 >= 0) - schedule_i = pipe_0; - - /* Either we've scheduled a pipe0 insn already or there is no pipe0 - insn to schedule. Put a pipe1 insn at the front of the ready list. */ - else - schedule_i = pipe_1; - - if (schedule_i > -1) - { - insn = ready[schedule_i]; - ready[schedule_i] = ready[nready - 1]; - ready[nready - 1] = insn; - return 1; - } - return 0; -} - -/* INSN is dependent on DEP_INSN. */ -static int -spu_sched_adjust_cost (rtx_insn *insn, int dep_type, rtx_insn *dep_insn, - int cost, unsigned int) -{ - rtx set; - - /* The blockage pattern is used to prevent instructions from being - moved across it and has no cost. */ - if (INSN_CODE (insn) == CODE_FOR_blockage - || INSN_CODE (dep_insn) == CODE_FOR_blockage) - return 0; - - if ((INSN_P (insn) && get_attr_length (insn) == 0) - || (INSN_P (dep_insn) && get_attr_length (dep_insn) == 0)) - return 0; - - /* Make sure hbrps are spread out. */ - if (INSN_CODE (insn) == CODE_FOR_iprefetch - && INSN_CODE (dep_insn) == CODE_FOR_iprefetch) - return 8; - - /* Make sure hints and hbrps are 2 cycles apart. */ - if ((INSN_CODE (insn) == CODE_FOR_iprefetch - || INSN_CODE (insn) == CODE_FOR_hbr) - && (INSN_CODE (dep_insn) == CODE_FOR_iprefetch - || INSN_CODE (dep_insn) == CODE_FOR_hbr)) - return 2; - - /* An hbrp has no real dependency on other insns. */ - if (INSN_CODE (insn) == CODE_FOR_iprefetch - || INSN_CODE (dep_insn) == CODE_FOR_iprefetch) - return 0; - - /* Assuming that it is unlikely an argument register will be used in - the first cycle of the called function, we reduce the cost for - slightly better scheduling of dep_insn. When not hinted, the - mispredicted branch would hide the cost as well. */ - if (CALL_P (insn)) - { - rtx target = get_branch_target (insn); - if (GET_CODE (target) != REG || !set_of (target, insn)) - return cost - 2; - return cost; - } - - /* And when returning from a function, let's assume the return values - are completed sooner too. */ - if (CALL_P (dep_insn)) - return cost - 2; - - /* Make sure an instruction that loads from the back chain is schedule - away from the return instruction so a hint is more likely to get - issued. */ - if (INSN_CODE (insn) == CODE_FOR__return - && (set = single_set (dep_insn)) - && GET_CODE (SET_DEST (set)) == REG - && REGNO (SET_DEST (set)) == LINK_REGISTER_REGNUM) - return 20; - - /* The dfa scheduler sets cost to 0 for all anti-dependencies and the - scheduler makes every insn in a block anti-dependent on the final - jump_insn. We adjust here so higher cost insns will get scheduled - earlier. */ - if (JUMP_P (insn) && dep_type == REG_DEP_ANTI) - return insn_sched_cost (dep_insn) - 3; - - return cost; -} - -/* Create a CONST_DOUBLE from a string. */ -rtx -spu_float_const (const char *string, machine_mode mode) -{ - REAL_VALUE_TYPE value; - value = REAL_VALUE_ATOF (string, mode); - return const_double_from_real_value (value, mode); -} - -int -spu_constant_address_p (rtx x) -{ - return (GET_CODE (x) == LABEL_REF || GET_CODE (x) == SYMBOL_REF - || GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST - || GET_CODE (x) == HIGH); -} - -static enum spu_immediate -which_immediate_load (HOST_WIDE_INT val) -{ - gcc_assert (val == trunc_int_for_mode (val, SImode)); - - if (val >= -0x8000 && val <= 0x7fff) - return SPU_IL; - if (val >= 0 && val <= 0x3ffff) - return SPU_ILA; - if ((val & 0xffff) == ((val >> 16) & 0xffff)) - return SPU_ILH; - if ((val & 0xffff) == 0) - return SPU_ILHU; - - return SPU_NONE; -} - -/* Return true when OP can be loaded by one of the il instructions, or - when flow2 is not completed and OP can be loaded using ilhu and iohl. */ -int -immediate_load_p (rtx op, machine_mode mode) -{ - if (CONSTANT_P (op)) - { - enum immediate_class c = classify_immediate (op, mode); - return c == IC_IL1 || c == IC_IL1s - || (!epilogue_completed && (c == IC_IL2 || c == IC_IL2s)); - } - return 0; -} - -/* Return true if the first SIZE bytes of arr is a constant that can be - generated with cbd, chd, cwd or cdd. When non-NULL, PRUN and PSTART - represent the size and offset of the instruction to use. */ -static int -cpat_info(unsigned char *arr, int size, int *prun, int *pstart) -{ - int cpat, run, i, start; - cpat = 1; - run = 0; - start = -1; - for (i = 0; i < size && cpat; i++) - if (arr[i] != i+16) - { - if (!run) - { - start = i; - if (arr[i] == 3) - run = 1; - else if (arr[i] == 2 && arr[i+1] == 3) - run = 2; - else if (arr[i] == 0) - { - while (arr[i+run] == run && i+run < 16) - run++; - if (run != 4 && run != 8) - cpat = 0; - } - else - cpat = 0; - if ((i & (run-1)) != 0) - cpat = 0; - i += run; - } - else - cpat = 0; - } - if (cpat && (run || size < 16)) - { - if (run == 0) - run = 1; - if (prun) - *prun = run; - if (pstart) - *pstart = start == -1 ? 16-run : start; - return 1; - } - return 0; -} - -/* OP is a CONSTANT_P. Determine what instructions can be used to load - it into a register. MODE is only valid when OP is a CONST_INT. */ -static enum immediate_class -classify_immediate (rtx op, machine_mode mode) -{ - HOST_WIDE_INT val; - unsigned char arr[16]; - int i, j, repeated, fsmbi, repeat; - - gcc_assert (CONSTANT_P (op)); - - if (GET_MODE (op) != VOIDmode) - mode = GET_MODE (op); - - /* A V4SI const_vector with all identical symbols is ok. */ - if (!flag_pic - && mode == V4SImode - && GET_CODE (op) == CONST_VECTOR - && GET_CODE (CONST_VECTOR_ELT (op, 0)) != CONST_INT - && GET_CODE (CONST_VECTOR_ELT (op, 0)) != CONST_DOUBLE) - op = unwrap_const_vec_duplicate (op); - - switch (GET_CODE (op)) - { - case SYMBOL_REF: - case LABEL_REF: - return TARGET_LARGE_MEM ? IC_IL2s : IC_IL1s; - - case CONST: - /* We can never know if the resulting address fits in 18 bits and can be - loaded with ila. For now, assume the address will not overflow if - the displacement is "small" (fits 'K' constraint). */ - if (!TARGET_LARGE_MEM && GET_CODE (XEXP (op, 0)) == PLUS) - { - rtx sym = XEXP (XEXP (op, 0), 0); - rtx cst = XEXP (XEXP (op, 0), 1); - - if (GET_CODE (sym) == SYMBOL_REF - && GET_CODE (cst) == CONST_INT - && satisfies_constraint_K (cst)) - return IC_IL1s; - } - return IC_IL2s; - - case HIGH: - return IC_IL1s; - - case CONST_VECTOR: - for (i = 0; i < GET_MODE_NUNITS (mode); i++) - if (GET_CODE (CONST_VECTOR_ELT (op, i)) != CONST_INT - && GET_CODE (CONST_VECTOR_ELT (op, i)) != CONST_DOUBLE) - return IC_POOL; - /* Fall through. */ - - case CONST_INT: - case CONST_DOUBLE: - constant_to_array (mode, op, arr); - - /* Check that each 4-byte slot is identical. */ - repeated = 1; - for (i = 4; i < 16; i += 4) - for (j = 0; j < 4; j++) - if (arr[j] != arr[i + j]) - repeated = 0; - - if (repeated) - { - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - - if (which_immediate_load (val) != SPU_NONE) - return IC_IL1; - } - - /* Any mode of 2 bytes or smaller can be loaded with an il - instruction. */ - gcc_assert (GET_MODE_SIZE (mode) > 2); - - fsmbi = 1; - repeat = 0; - for (i = 0; i < 16 && fsmbi; i++) - if (arr[i] != 0 && repeat == 0) - repeat = arr[i]; - else if (arr[i] != 0 && arr[i] != repeat) - fsmbi = 0; - if (fsmbi) - return repeat == 0xff ? IC_FSMBI : IC_FSMBI2; - - if (cpat_info (arr, GET_MODE_SIZE (mode), 0, 0)) - return IC_CPAT; - - if (repeated) - return IC_IL2; - - return IC_POOL; - default: - break; - } - gcc_unreachable (); -} - -static enum spu_immediate -which_logical_immediate (HOST_WIDE_INT val) -{ - gcc_assert (val == trunc_int_for_mode (val, SImode)); - - if (val >= -0x200 && val <= 0x1ff) - return SPU_ORI; - if (val >= 0 && val <= 0xffff) - return SPU_IOHL; - if ((val & 0xffff) == ((val >> 16) & 0xffff)) - { - val = trunc_int_for_mode (val, HImode); - if (val >= -0x200 && val <= 0x1ff) - return SPU_ORHI; - if ((val & 0xff) == ((val >> 8) & 0xff)) - { - val = trunc_int_for_mode (val, QImode); - if (val >= -0x200 && val <= 0x1ff) - return SPU_ORBI; - } - } - return SPU_NONE; -} - -/* Return TRUE when X, a CONST_VECTOR, only contains CONST_INTs or - CONST_DOUBLEs. */ -static int -const_vector_immediate_p (rtx x) -{ - int i; - gcc_assert (GET_CODE (x) == CONST_VECTOR); - for (i = 0; i < GET_MODE_NUNITS (GET_MODE (x)); i++) - if (GET_CODE (CONST_VECTOR_ELT (x, i)) != CONST_INT - && GET_CODE (CONST_VECTOR_ELT (x, i)) != CONST_DOUBLE) - return 0; - return 1; -} - -int -logical_immediate_p (rtx op, machine_mode mode) -{ - HOST_WIDE_INT val; - unsigned char arr[16]; - int i, j; - - gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE - || GET_CODE (op) == CONST_VECTOR); - - if (GET_CODE (op) == CONST_VECTOR - && !const_vector_immediate_p (op)) - return 0; - - if (GET_MODE (op) != VOIDmode) - mode = GET_MODE (op); - - constant_to_array (mode, op, arr); - - /* Check that bytes are repeated. */ - for (i = 4; i < 16; i += 4) - for (j = 0; j < 4; j++) - if (arr[j] != arr[i + j]) - return 0; - - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - - i = which_logical_immediate (val); - return i != SPU_NONE && i != SPU_IOHL; -} - -int -iohl_immediate_p (rtx op, machine_mode mode) -{ - HOST_WIDE_INT val; - unsigned char arr[16]; - int i, j; - - gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE - || GET_CODE (op) == CONST_VECTOR); - - if (GET_CODE (op) == CONST_VECTOR - && !const_vector_immediate_p (op)) - return 0; - - if (GET_MODE (op) != VOIDmode) - mode = GET_MODE (op); - - constant_to_array (mode, op, arr); - - /* Check that bytes are repeated. */ - for (i = 4; i < 16; i += 4) - for (j = 0; j < 4; j++) - if (arr[j] != arr[i + j]) - return 0; - - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - - return val >= 0 && val <= 0xffff; -} - -int -arith_immediate_p (rtx op, machine_mode mode, - HOST_WIDE_INT low, HOST_WIDE_INT high) -{ - HOST_WIDE_INT val; - unsigned char arr[16]; - int bytes, i, j; - - gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE - || GET_CODE (op) == CONST_VECTOR); - - if (GET_CODE (op) == CONST_VECTOR - && !const_vector_immediate_p (op)) - return 0; - - if (GET_MODE (op) != VOIDmode) - mode = GET_MODE (op); - - constant_to_array (mode, op, arr); - - bytes = GET_MODE_UNIT_SIZE (mode); - mode = int_mode_for_mode (GET_MODE_INNER (mode)).require (); - - /* Check that bytes are repeated. */ - for (i = bytes; i < 16; i += bytes) - for (j = 0; j < bytes; j++) - if (arr[j] != arr[i + j]) - return 0; - - val = arr[0]; - for (j = 1; j < bytes; j++) - val = (val << 8) | arr[j]; - - val = trunc_int_for_mode (val, mode); - - return val >= low && val <= high; -} - -/* TRUE when op is an immediate and an exact power of 2, and given that - OP is 2^scale, scale >= LOW && scale <= HIGH. When OP is a vector, - all entries must be the same. */ -bool -exp2_immediate_p (rtx op, machine_mode mode, int low, int high) -{ - machine_mode int_mode; - HOST_WIDE_INT val; - unsigned char arr[16]; - int bytes, i, j; - - gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE - || GET_CODE (op) == CONST_VECTOR); - - if (GET_CODE (op) == CONST_VECTOR - && !const_vector_immediate_p (op)) - return 0; - - if (GET_MODE (op) != VOIDmode) - mode = GET_MODE (op); - - constant_to_array (mode, op, arr); - - mode = GET_MODE_INNER (mode); - - bytes = GET_MODE_SIZE (mode); - int_mode = int_mode_for_mode (mode).require (); - - /* Check that bytes are repeated. */ - for (i = bytes; i < 16; i += bytes) - for (j = 0; j < bytes; j++) - if (arr[j] != arr[i + j]) - return 0; - - val = arr[0]; - for (j = 1; j < bytes; j++) - val = (val << 8) | arr[j]; - - val = trunc_int_for_mode (val, int_mode); - - /* Currently, we only handle SFmode */ - gcc_assert (mode == SFmode); - if (mode == SFmode) - { - int exp = (val >> 23) - 127; - return val > 0 && (val & 0x007fffff) == 0 - && exp >= low && exp <= high; - } - return FALSE; -} - -/* Return true if X is a SYMBOL_REF to an __ea qualified variable. */ - -static bool -ea_symbol_ref_p (const_rtx x) -{ - tree decl; - - if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS) - { - rtx plus = XEXP (x, 0); - rtx op0 = XEXP (plus, 0); - rtx op1 = XEXP (plus, 1); - if (GET_CODE (op1) == CONST_INT) - x = op0; - } - - return (GET_CODE (x) == SYMBOL_REF - && (decl = SYMBOL_REF_DECL (x)) != 0 - && TREE_CODE (decl) == VAR_DECL - && TYPE_ADDR_SPACE (TREE_TYPE (decl))); -} - -/* We accept: - - any 32-bit constant (SImode, SFmode) - - any constant that can be generated with fsmbi (any mode) - - a 64-bit constant where the high and low bits are identical - (DImode, DFmode) - - a 128-bit constant where the four 32-bit words match. */ -bool -spu_legitimate_constant_p (machine_mode mode, rtx x) -{ - subrtx_iterator::array_type array; - if (GET_CODE (x) == HIGH) - x = XEXP (x, 0); - - /* Reject any __ea qualified reference. These can't appear in - instructions but must be forced to the constant pool. */ - FOR_EACH_SUBRTX (iter, array, x, ALL) - if (ea_symbol_ref_p (*iter)) - return 0; - - /* V4SI with all identical symbols is valid. */ - if (!flag_pic - && mode == V4SImode - && (GET_CODE (CONST_VECTOR_ELT (x, 0)) == SYMBOL_REF - || GET_CODE (CONST_VECTOR_ELT (x, 0)) == LABEL_REF - || GET_CODE (CONST_VECTOR_ELT (x, 0)) == CONST)) - return const_vec_duplicate_p (x); - - if (GET_CODE (x) == CONST_VECTOR - && !const_vector_immediate_p (x)) - return 0; - return 1; -} - -/* Valid address are: - - symbol_ref, label_ref, const - - reg - - reg + const_int, where const_int is 16 byte aligned - - reg + reg, alignment doesn't matter - The alignment matters in the reg+const case because lqd and stqd - ignore the 4 least significant bits of the const. We only care about - 16 byte modes because the expand phase will change all smaller MEM - references to TImode. */ -static bool -spu_legitimate_address_p (machine_mode mode, - rtx x, bool reg_ok_strict) -{ - int aligned = GET_MODE_SIZE (mode) >= 16; - if (aligned - && GET_CODE (x) == AND - && GET_CODE (XEXP (x, 1)) == CONST_INT - && INTVAL (XEXP (x, 1)) == (HOST_WIDE_INT) - 16) - x = XEXP (x, 0); - switch (GET_CODE (x)) - { - case LABEL_REF: - return !TARGET_LARGE_MEM; - - case SYMBOL_REF: - case CONST: - /* Keep __ea references until reload so that spu_expand_mov can see them - in MEMs. */ - if (ea_symbol_ref_p (x)) - return !reload_in_progress && !reload_completed; - return !TARGET_LARGE_MEM; - - case CONST_INT: - return INTVAL (x) >= 0 && INTVAL (x) <= 0x3ffff; - - case SUBREG: - x = XEXP (x, 0); - if (!REG_P (x)) - return 0; - /* FALLTHRU */ - - case REG: - return INT_REG_OK_FOR_BASE_P (x, reg_ok_strict); - - case PLUS: - case LO_SUM: - { - rtx op0 = XEXP (x, 0); - rtx op1 = XEXP (x, 1); - if (GET_CODE (op0) == SUBREG) - op0 = XEXP (op0, 0); - if (GET_CODE (op1) == SUBREG) - op1 = XEXP (op1, 0); - if (GET_CODE (op0) == REG - && INT_REG_OK_FOR_BASE_P (op0, reg_ok_strict) - && GET_CODE (op1) == CONST_INT - && ((INTVAL (op1) >= -0x2000 && INTVAL (op1) <= 0x1fff) - /* If virtual registers are involved, the displacement will - change later on anyway, so checking would be premature. - Reload will make sure the final displacement after - register elimination is OK. */ - || op0 == arg_pointer_rtx - || op0 == frame_pointer_rtx - || op0 == virtual_stack_vars_rtx) - && (!aligned || (INTVAL (op1) & 15) == 0)) - return TRUE; - if (GET_CODE (op0) == REG - && INT_REG_OK_FOR_BASE_P (op0, reg_ok_strict) - && GET_CODE (op1) == REG - && INT_REG_OK_FOR_INDEX_P (op1, reg_ok_strict)) - return TRUE; - } - break; - - default: - break; - } - return FALSE; -} - -/* Like spu_legitimate_address_p, except with named addresses. */ -static bool -spu_addr_space_legitimate_address_p (machine_mode mode, rtx x, - bool reg_ok_strict, addr_space_t as) -{ - if (as == ADDR_SPACE_EA) - return (REG_P (x) && (GET_MODE (x) == EAmode)); - - else if (as != ADDR_SPACE_GENERIC) - gcc_unreachable (); - - return spu_legitimate_address_p (mode, x, reg_ok_strict); -} - -/* When the address is reg + const_int, force the const_int into a - register. */ -static rtx -spu_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, - machine_mode mode ATTRIBUTE_UNUSED) -{ - rtx op0, op1; - /* Make sure both operands are registers. */ - if (GET_CODE (x) == PLUS) - { - op0 = XEXP (x, 0); - op1 = XEXP (x, 1); - if (ALIGNED_SYMBOL_REF_P (op0)) - { - op0 = force_reg (Pmode, op0); - mark_reg_pointer (op0, 128); - } - else if (GET_CODE (op0) != REG) - op0 = force_reg (Pmode, op0); - if (ALIGNED_SYMBOL_REF_P (op1)) - { - op1 = force_reg (Pmode, op1); - mark_reg_pointer (op1, 128); - } - else if (GET_CODE (op1) != REG) - op1 = force_reg (Pmode, op1); - x = gen_rtx_PLUS (Pmode, op0, op1); - } - return x; -} - -/* Like spu_legitimate_address, except with named address support. */ -static rtx -spu_addr_space_legitimize_address (rtx x, rtx oldx, machine_mode mode, - addr_space_t as) -{ - if (as != ADDR_SPACE_GENERIC) - return x; - - return spu_legitimize_address (x, oldx, mode); -} - -/* Reload reg + const_int for out-of-range displacements. */ -rtx -spu_legitimize_reload_address (rtx ad, machine_mode mode ATTRIBUTE_UNUSED, - int opnum, int type) -{ - bool removed_and = false; - - if (GET_CODE (ad) == AND - && CONST_INT_P (XEXP (ad, 1)) - && INTVAL (XEXP (ad, 1)) == (HOST_WIDE_INT) - 16) - { - ad = XEXP (ad, 0); - removed_and = true; - } - - if (GET_CODE (ad) == PLUS - && REG_P (XEXP (ad, 0)) - && CONST_INT_P (XEXP (ad, 1)) - && !(INTVAL (XEXP (ad, 1)) >= -0x2000 - && INTVAL (XEXP (ad, 1)) <= 0x1fff)) - { - /* Unshare the sum. */ - ad = copy_rtx (ad); - - /* Reload the displacement. */ - push_reload (XEXP (ad, 1), NULL_RTX, &XEXP (ad, 1), NULL, - BASE_REG_CLASS, GET_MODE (ad), VOIDmode, 0, 0, - opnum, (enum reload_type) type); - - /* Add back AND for alignment if we stripped it. */ - if (removed_and) - ad = gen_rtx_AND (GET_MODE (ad), ad, GEN_INT (-16)); - - return ad; - } - - return NULL_RTX; -} - -/* Handle an attribute requiring a FUNCTION_DECL; arguments as in - struct attribute_spec.handler. */ -static tree -spu_handle_fndecl_attribute (tree * node, - tree name, - tree args ATTRIBUTE_UNUSED, - int flags ATTRIBUTE_UNUSED, bool * no_add_attrs) -{ - if (TREE_CODE (*node) != FUNCTION_DECL) - { - warning (0, "%qE attribute only applies to functions", - name); - *no_add_attrs = true; - } - - return NULL_TREE; -} - -/* Handle the "vector" attribute. */ -static tree -spu_handle_vector_attribute (tree * node, tree name, - tree args ATTRIBUTE_UNUSED, - int flags ATTRIBUTE_UNUSED, bool * no_add_attrs) -{ - tree type = *node, result = NULL_TREE; - machine_mode mode; - int unsigned_p; - - while (POINTER_TYPE_P (type) - || TREE_CODE (type) == FUNCTION_TYPE - || TREE_CODE (type) == METHOD_TYPE || TREE_CODE (type) == ARRAY_TYPE) - type = TREE_TYPE (type); - - mode = TYPE_MODE (type); - - unsigned_p = TYPE_UNSIGNED (type); - switch (mode) - { - case E_DImode: - result = (unsigned_p ? unsigned_V2DI_type_node : V2DI_type_node); - break; - case E_SImode: - result = (unsigned_p ? unsigned_V4SI_type_node : V4SI_type_node); - break; - case E_HImode: - result = (unsigned_p ? unsigned_V8HI_type_node : V8HI_type_node); - break; - case E_QImode: - result = (unsigned_p ? unsigned_V16QI_type_node : V16QI_type_node); - break; - case E_SFmode: - result = V4SF_type_node; - break; - case E_DFmode: - result = V2DF_type_node; - break; - default: - break; - } - - /* Propagate qualifiers attached to the element type - onto the vector type. */ - if (result && result != type && TYPE_QUALS (type)) - result = build_qualified_type (result, TYPE_QUALS (type)); - - *no_add_attrs = true; /* No need to hang on to the attribute. */ - - if (!result) - warning (0, "%qE attribute ignored", name); - else - *node = lang_hooks.types.reconstruct_complex_type (*node, result); - - return NULL_TREE; -} - -/* Return nonzero if FUNC is a naked function. */ -static int -spu_naked_function_p (tree func) -{ - tree a; - - if (TREE_CODE (func) != FUNCTION_DECL) - abort (); - - a = lookup_attribute ("naked", DECL_ATTRIBUTES (func)); - return a != NULL_TREE; -} - -int -spu_initial_elimination_offset (int from, int to) -{ - int saved_regs_size = spu_saved_regs_size (); - int sp_offset = 0; - if (!crtl->is_leaf || crtl->outgoing_args_size - || get_frame_size () || saved_regs_size) - sp_offset = STACK_POINTER_OFFSET; - if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM) - return get_frame_size () + crtl->outgoing_args_size + sp_offset; - else if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) - return get_frame_size (); - else if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM) - return sp_offset + crtl->outgoing_args_size - + get_frame_size () + saved_regs_size + STACK_POINTER_OFFSET; - else if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) - return get_frame_size () + saved_regs_size + sp_offset; - else - gcc_unreachable (); -} - -rtx -spu_function_value (const_tree type, const_tree func ATTRIBUTE_UNUSED) -{ - machine_mode mode = TYPE_MODE (type); - int byte_size = ((mode == BLKmode) - ? int_size_in_bytes (type) : GET_MODE_SIZE (mode)); - - /* Make sure small structs are left justified in a register. */ - if ((mode == BLKmode || (type && AGGREGATE_TYPE_P (type))) - && byte_size <= UNITS_PER_WORD * MAX_REGISTER_RETURN && byte_size > 0) - { - machine_mode smode; - rtvec v; - int i; - int nregs = (byte_size + UNITS_PER_WORD - 1) / UNITS_PER_WORD; - int n = byte_size / UNITS_PER_WORD; - v = rtvec_alloc (nregs); - for (i = 0; i < n; i++) - { - RTVEC_ELT (v, i) = gen_rtx_EXPR_LIST (VOIDmode, - gen_rtx_REG (TImode, - FIRST_RETURN_REGNUM - + i), - GEN_INT (UNITS_PER_WORD * i)); - byte_size -= UNITS_PER_WORD; - } - - if (n < nregs) - { - if (byte_size < 4) - byte_size = 4; - smode = smallest_int_mode_for_size (byte_size * BITS_PER_UNIT); - RTVEC_ELT (v, n) = - gen_rtx_EXPR_LIST (VOIDmode, - gen_rtx_REG (smode, FIRST_RETURN_REGNUM + n), - GEN_INT (UNITS_PER_WORD * n)); - } - return gen_rtx_PARALLEL (mode, v); - } - return gen_rtx_REG (mode, FIRST_RETURN_REGNUM); -} - -static rtx -spu_function_arg (cumulative_args_t cum_v, const function_arg_info &arg) -{ - CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); - int byte_size; - - if (*cum >= MAX_REGISTER_ARGS) - return 0; - - byte_size = arg.promoted_size_in_bytes (); - - /* The ABI does not allow parameters to be passed partially in - reg and partially in stack. */ - if ((*cum + (byte_size + 15) / 16) > MAX_REGISTER_ARGS) - return 0; - - /* Make sure small structs are left justified in a register. */ - if ((arg.mode == BLKmode || arg.aggregate_type_p ()) - && byte_size < UNITS_PER_WORD && byte_size > 0) - { - machine_mode smode; - rtx gr_reg; - if (byte_size < 4) - byte_size = 4; - smode = smallest_int_mode_for_size (byte_size * BITS_PER_UNIT); - gr_reg = gen_rtx_EXPR_LIST (VOIDmode, - gen_rtx_REG (smode, FIRST_ARG_REGNUM + *cum), - const0_rtx); - return gen_rtx_PARALLEL (arg.mode, gen_rtvec (1, gr_reg)); - } - else - return gen_rtx_REG (arg.mode, FIRST_ARG_REGNUM + *cum); -} - -static void -spu_function_arg_advance (cumulative_args_t cum_v, - const function_arg_info &arg) -{ - CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); - - *cum += (arg.type && TREE_CODE (TYPE_SIZE (arg.type)) != INTEGER_CST - ? 1 - : arg.mode == BLKmode - ? ((int_size_in_bytes (arg.type) + 15) / 16) - : arg.mode == VOIDmode - ? 1 - : spu_hard_regno_nregs (FIRST_ARG_REGNUM, arg.mode)); -} - -/* Implement TARGET_FUNCTION_ARG_OFFSET. The SPU ABI wants 32/64-bit - types at offset 0 in the quad-word on the stack. 8/16-bit types - should be at offsets 3/2 respectively. */ - -static HOST_WIDE_INT -spu_function_arg_offset (machine_mode mode, const_tree type) -{ - if (type && INTEGRAL_TYPE_P (type) && GET_MODE_SIZE (mode) < 4) - return 4 - GET_MODE_SIZE (mode); - return 0; -} - -/* Implement TARGET_FUNCTION_ARG_PADDING. */ - -static pad_direction -spu_function_arg_padding (machine_mode, const_tree) -{ - return PAD_UPWARD; -} - -/* Variable sized types are passed by reference. */ -static bool -spu_pass_by_reference (cumulative_args_t, const function_arg_info &arg) -{ - return arg.type && TREE_CODE (TYPE_SIZE (arg.type)) != INTEGER_CST; -} - - -/* Var args. */ - -/* Create and return the va_list datatype. - - On SPU, va_list is an array type equivalent to - - typedef struct __va_list_tag - { - void *__args __attribute__((__aligned(16))); - void *__skip __attribute__((__aligned(16))); - - } va_list[1]; - - where __args points to the arg that will be returned by the next - va_arg(), and __skip points to the previous stack frame such that - when __args == __skip we should advance __args by 32 bytes. */ -static tree -spu_build_builtin_va_list (void) -{ - tree f_args, f_skip, record, type_decl; - bool owp; - - record = (*lang_hooks.types.make_type) (RECORD_TYPE); - - type_decl = - build_decl (BUILTINS_LOCATION, - TYPE_DECL, get_identifier ("__va_list_tag"), record); - - f_args = build_decl (BUILTINS_LOCATION, - FIELD_DECL, get_identifier ("__args"), ptr_type_node); - f_skip = build_decl (BUILTINS_LOCATION, - FIELD_DECL, get_identifier ("__skip"), ptr_type_node); - - DECL_FIELD_CONTEXT (f_args) = record; - SET_DECL_ALIGN (f_args, 128); - DECL_USER_ALIGN (f_args) = 1; - - DECL_FIELD_CONTEXT (f_skip) = record; - SET_DECL_ALIGN (f_skip, 128); - DECL_USER_ALIGN (f_skip) = 1; - - TYPE_STUB_DECL (record) = type_decl; - TYPE_NAME (record) = type_decl; - TYPE_FIELDS (record) = f_args; - DECL_CHAIN (f_args) = f_skip; - - /* We know this is being padded and we want it too. It is an internal - type so hide the warnings from the user. */ - owp = warn_padded; - warn_padded = false; - - layout_type (record); - - warn_padded = owp; - - /* The correct type is an array type of one element. */ - return build_array_type (record, build_index_type (size_zero_node)); -} - -/* Implement va_start by filling the va_list structure VALIST. - NEXTARG points to the first anonymous stack argument. - - The following global variables are used to initialize - the va_list structure: - - crtl->args.info; - the CUMULATIVE_ARGS for this function - - crtl->args.arg_offset_rtx: - holds the offset of the first anonymous stack argument - (relative to the virtual arg pointer). */ - -static void -spu_va_start (tree valist, rtx nextarg) -{ - tree f_args, f_skip; - tree args, skip, t; - - f_args = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); - f_skip = DECL_CHAIN (f_args); - - valist = build_simple_mem_ref (valist); - args = - build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE); - skip = - build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE); - - /* Find the __args area. */ - t = make_tree (TREE_TYPE (args), nextarg); - if (crtl->args.pretend_args_size > 0) - t = fold_build_pointer_plus_hwi (t, -STACK_POINTER_OFFSET); - t = build2 (MODIFY_EXPR, TREE_TYPE (args), args, t); - TREE_SIDE_EFFECTS (t) = 1; - expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); - - /* Find the __skip area. */ - t = make_tree (TREE_TYPE (skip), virtual_incoming_args_rtx); - t = fold_build_pointer_plus_hwi (t, (crtl->args.pretend_args_size - - STACK_POINTER_OFFSET)); - t = build2 (MODIFY_EXPR, TREE_TYPE (skip), skip, t); - TREE_SIDE_EFFECTS (t) = 1; - expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); -} - -/* Gimplify va_arg by updating the va_list structure - VALIST as required to retrieve an argument of type - TYPE, and returning that argument. - - ret = va_arg(VALIST, TYPE); - - generates code equivalent to: - - paddedsize = (sizeof(TYPE) + 15) & -16; - if (VALIST.__args + paddedsize > VALIST.__skip - && VALIST.__args <= VALIST.__skip) - addr = VALIST.__skip + 32; - else - addr = VALIST.__args; - VALIST.__args = addr + paddedsize; - ret = *(TYPE *)addr; - */ -static tree -spu_gimplify_va_arg_expr (tree valist, tree type, gimple_seq * pre_p, - gimple_seq * post_p ATTRIBUTE_UNUSED) -{ - tree f_args, f_skip; - tree args, skip; - HOST_WIDE_INT size, rsize; - tree addr, tmp; - bool pass_by_reference_p; - - f_args = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); - f_skip = DECL_CHAIN (f_args); - - args = - build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE); - skip = - build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE); - - addr = create_tmp_var (ptr_type_node, "va_arg"); - - /* if an object is dynamically sized, a pointer to it is passed - instead of the object itself. */ - pass_by_reference_p = pass_va_arg_by_reference (type); - if (pass_by_reference_p) - type = build_pointer_type (type); - size = int_size_in_bytes (type); - rsize = ((size + UNITS_PER_WORD - 1) / UNITS_PER_WORD) * UNITS_PER_WORD; - - /* build conditional expression to calculate addr. The expression - will be gimplified later. */ - tmp = fold_build_pointer_plus_hwi (unshare_expr (args), rsize); - tmp = build2 (TRUTH_AND_EXPR, boolean_type_node, - build2 (GT_EXPR, boolean_type_node, tmp, unshare_expr (skip)), - build2 (LE_EXPR, boolean_type_node, unshare_expr (args), - unshare_expr (skip))); - - tmp = build3 (COND_EXPR, ptr_type_node, tmp, - fold_build_pointer_plus_hwi (unshare_expr (skip), 32), - unshare_expr (args)); - - gimplify_assign (addr, tmp, pre_p); - - /* update VALIST.__args */ - tmp = fold_build_pointer_plus_hwi (addr, rsize); - gimplify_assign (unshare_expr (args), tmp, pre_p); - - addr = fold_convert (build_pointer_type_for_mode (type, ptr_mode, true), - addr); - - if (pass_by_reference_p) - addr = build_va_arg_indirect_ref (addr); - - return build_va_arg_indirect_ref (addr); -} - -/* Save parameter registers starting with the register that corresponds - to the first unnamed parameters. If the first unnamed parameter is - in the stack then save no registers. Set pretend_args_size to the - amount of space needed to save the registers. */ -static void -spu_setup_incoming_varargs (cumulative_args_t cum, - const function_arg_info &arg, - int *pretend_size, int no_rtl) -{ - if (!no_rtl) - { - rtx tmp; - int regno; - int offset; - int ncum = *get_cumulative_args (cum); - - /* cum currently points to the last named argument, we want to - start at the next argument. */ - spu_function_arg_advance (pack_cumulative_args (&ncum), arg); - - offset = -STACK_POINTER_OFFSET; - for (regno = ncum; regno < MAX_REGISTER_ARGS; regno++) - { - tmp = gen_frame_mem (V4SImode, - plus_constant (Pmode, virtual_incoming_args_rtx, - offset)); - emit_move_insn (tmp, - gen_rtx_REG (V4SImode, FIRST_ARG_REGNUM + regno)); - offset += 16; - } - *pretend_size = offset + STACK_POINTER_OFFSET; - } -} - -static void -spu_conditional_register_usage (void) -{ - if (flag_pic) - { - fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; - call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; - } -} - -/* This is called any time we inspect the alignment of a register for - addresses. */ -static int -reg_aligned_for_addr (rtx x) -{ - int regno = - REGNO (x) < FIRST_PSEUDO_REGISTER ? ORIGINAL_REGNO (x) : REGNO (x); - return REGNO_POINTER_ALIGN (regno) >= 128; -} - -/* Encode symbol attributes (local vs. global, tls model) of a SYMBOL_REF - into its SYMBOL_REF_FLAGS. */ -static void -spu_encode_section_info (tree decl, rtx rtl, int first) -{ - default_encode_section_info (decl, rtl, first); - - /* If a variable has a forced alignment to < 16 bytes, mark it with - SYMBOL_FLAG_ALIGN1. */ - if (TREE_CODE (decl) == VAR_DECL - && DECL_USER_ALIGN (decl) && DECL_ALIGN (decl) < 128) - SYMBOL_REF_FLAGS (XEXP (rtl, 0)) |= SYMBOL_FLAG_ALIGN1; -} - -/* Return TRUE if we are certain the mem refers to a complete object - which is both 16-byte aligned and padded to a 16-byte boundary. This - would make it safe to store with a single instruction. - We guarantee the alignment and padding for static objects by aligning - all of them to 16-bytes. (DATA_ALIGNMENT and TARGET_CONSTANT_ALIGNMENT.) - FIXME: We currently cannot guarantee this for objects on the stack - because assign_parm_setup_stack calls assign_stack_local with the - alignment of the parameter mode and in that case the alignment never - gets adjusted by LOCAL_ALIGNMENT. */ -static int -store_with_one_insn_p (rtx mem) -{ - machine_mode mode = GET_MODE (mem); - rtx addr = XEXP (mem, 0); - if (mode == BLKmode) - return 0; - if (GET_MODE_SIZE (mode) >= 16) - return 1; - /* Only static objects. */ - if (GET_CODE (addr) == SYMBOL_REF) - { - /* We use the associated declaration to make sure the access is - referring to the whole object. - We check both MEM_EXPR and SYMBOL_REF_DECL. I'm not sure - if it is necessary. Will there be cases where one exists, and - the other does not? Will there be cases where both exist, but - have different types? */ - tree decl = MEM_EXPR (mem); - if (decl - && TREE_CODE (decl) == VAR_DECL - && GET_MODE (mem) == TYPE_MODE (TREE_TYPE (decl))) - return 1; - decl = SYMBOL_REF_DECL (addr); - if (decl - && TREE_CODE (decl) == VAR_DECL - && GET_MODE (mem) == TYPE_MODE (TREE_TYPE (decl))) - return 1; - } - return 0; -} - -/* Return 1 when the address is not valid for a simple load and store as - required by the '_mov*' patterns. We could make this less strict - for loads, but we prefer mem's to look the same so they are more - likely to be merged. */ -static int -address_needs_split (rtx mem) -{ - if (GET_MODE_SIZE (GET_MODE (mem)) < 16 - && (GET_MODE_SIZE (GET_MODE (mem)) < 4 - || !(store_with_one_insn_p (mem) - || mem_is_padded_component_ref (mem)))) - return 1; - - return 0; -} - -static GTY(()) rtx cache_fetch; /* __cache_fetch function */ -static GTY(()) rtx cache_fetch_dirty; /* __cache_fetch_dirty function */ -static alias_set_type ea_alias_set = -1; /* alias set for __ea memory */ - -/* MEM is known to be an __ea qualified memory access. Emit a call to - fetch the ppu memory to local store, and return its address in local - store. */ - -static void -ea_load_store (rtx mem, bool is_store, rtx ea_addr, rtx data_addr) -{ - if (is_store) - { - rtx ndirty = GEN_INT (GET_MODE_SIZE (GET_MODE (mem))); - if (!cache_fetch_dirty) - cache_fetch_dirty = init_one_libfunc ("__cache_fetch_dirty"); - emit_library_call_value (cache_fetch_dirty, data_addr, LCT_NORMAL, Pmode, - ea_addr, EAmode, ndirty, SImode); - } - else - { - if (!cache_fetch) - cache_fetch = init_one_libfunc ("__cache_fetch"); - emit_library_call_value (cache_fetch, data_addr, LCT_NORMAL, Pmode, - ea_addr, EAmode); - } -} - -/* Like ea_load_store, but do the cache tag comparison and, for stores, - dirty bit marking, inline. - - The cache control data structure is an array of - - struct __cache_tag_array - { - unsigned int tag_lo[4]; - unsigned int tag_hi[4]; - void *data_pointer[4]; - int reserved[4]; - vector unsigned short dirty_bits[4]; - } */ - -static void -ea_load_store_inline (rtx mem, bool is_store, rtx ea_addr, rtx data_addr) -{ - rtx ea_addr_si; - HOST_WIDE_INT v; - rtx tag_size_sym = gen_rtx_SYMBOL_REF (Pmode, "__cache_tag_array_size"); - rtx tag_arr_sym = gen_rtx_SYMBOL_REF (Pmode, "__cache_tag_array"); - rtx index_mask = gen_reg_rtx (SImode); - rtx tag_arr = gen_reg_rtx (Pmode); - rtx splat_mask = gen_reg_rtx (TImode); - rtx splat = gen_reg_rtx (V4SImode); - rtx splat_hi = NULL_RTX; - rtx tag_index = gen_reg_rtx (Pmode); - rtx block_off = gen_reg_rtx (SImode); - rtx tag_addr = gen_reg_rtx (Pmode); - rtx tag = gen_reg_rtx (V4SImode); - rtx cache_tag = gen_reg_rtx (V4SImode); - rtx cache_tag_hi = NULL_RTX; - rtx cache_ptrs = gen_reg_rtx (TImode); - rtx cache_ptrs_si = gen_reg_rtx (SImode); - rtx tag_equal = gen_reg_rtx (V4SImode); - rtx tag_equal_hi = NULL_RTX; - rtx tag_eq_pack = gen_reg_rtx (V4SImode); - rtx tag_eq_pack_si = gen_reg_rtx (SImode); - rtx eq_index = gen_reg_rtx (SImode); - rtx bcomp, hit_label, hit_ref, cont_label; - rtx_insn *insn; - - if (spu_ea_model != 32) - { - splat_hi = gen_reg_rtx (V4SImode); - cache_tag_hi = gen_reg_rtx (V4SImode); - tag_equal_hi = gen_reg_rtx (V4SImode); - } - - emit_move_insn (index_mask, plus_constant (Pmode, tag_size_sym, -128)); - emit_move_insn (tag_arr, tag_arr_sym); - v = 0x0001020300010203LL; - emit_move_insn (splat_mask, immed_double_const (v, v, TImode)); - ea_addr_si = ea_addr; - if (spu_ea_model != 32) - ea_addr_si = convert_to_mode (SImode, ea_addr, 1); - - /* tag_index = ea_addr & (tag_array_size - 128) */ - emit_insn (gen_andsi3 (tag_index, ea_addr_si, index_mask)); - - /* splat ea_addr to all 4 slots. */ - emit_insn (gen_shufb (splat, ea_addr_si, ea_addr_si, splat_mask)); - /* Similarly for high 32 bits of ea_addr. */ - if (spu_ea_model != 32) - emit_insn (gen_shufb (splat_hi, ea_addr, ea_addr, splat_mask)); - - /* block_off = ea_addr & 127 */ - emit_insn (gen_andsi3 (block_off, ea_addr_si, spu_const (SImode, 127))); - - /* tag_addr = tag_arr + tag_index */ - emit_insn (gen_addsi3 (tag_addr, tag_arr, tag_index)); - - /* Read cache tags. */ - emit_move_insn (cache_tag, gen_rtx_MEM (V4SImode, tag_addr)); - if (spu_ea_model != 32) - emit_move_insn (cache_tag_hi, gen_rtx_MEM (V4SImode, - plus_constant (Pmode, - tag_addr, 16))); - - /* tag = ea_addr & -128 */ - emit_insn (gen_andv4si3 (tag, splat, spu_const (V4SImode, -128))); - - /* Read all four cache data pointers. */ - emit_move_insn (cache_ptrs, gen_rtx_MEM (TImode, - plus_constant (Pmode, - tag_addr, 32))); - - /* Compare tags. */ - emit_insn (gen_ceq_v4si (tag_equal, tag, cache_tag)); - if (spu_ea_model != 32) - { - emit_insn (gen_ceq_v4si (tag_equal_hi, splat_hi, cache_tag_hi)); - emit_insn (gen_andv4si3 (tag_equal, tag_equal, tag_equal_hi)); - } - - /* At most one of the tags compare equal, so tag_equal has one - 32-bit slot set to all 1's, with the other slots all zero. - gbb picks off low bit from each byte in the 128-bit registers, - so tag_eq_pack is one of 0xf000, 0x0f00, 0x00f0, 0x000f, assuming - we have a hit. */ - emit_insn (gen_spu_gbb (tag_eq_pack, spu_gen_subreg (V16QImode, tag_equal))); - emit_insn (gen_spu_convert (tag_eq_pack_si, tag_eq_pack)); - - /* So counting leading zeros will set eq_index to 16, 20, 24 or 28. */ - emit_insn (gen_clzsi2 (eq_index, tag_eq_pack_si)); - - /* Allowing us to rotate the corresponding cache data pointer to slot0. - (rotating eq_index mod 16 bytes). */ - emit_insn (gen_rotqby_ti (cache_ptrs, cache_ptrs, eq_index)); - emit_insn (gen_spu_convert (cache_ptrs_si, cache_ptrs)); - - /* Add block offset to form final data address. */ - emit_insn (gen_addsi3 (data_addr, cache_ptrs_si, block_off)); - - /* Check that we did hit. */ - hit_label = gen_label_rtx (); - hit_ref = gen_rtx_LABEL_REF (VOIDmode, hit_label); - bcomp = gen_rtx_NE (SImode, tag_eq_pack_si, const0_rtx); - insn = emit_jump_insn (gen_rtx_SET (pc_rtx, - gen_rtx_IF_THEN_ELSE (VOIDmode, bcomp, - hit_ref, pc_rtx))); - /* Say that this branch is very likely to happen. */ - add_reg_br_prob_note (insn, profile_probability::very_likely ()); - - ea_load_store (mem, is_store, ea_addr, data_addr); - cont_label = gen_label_rtx (); - emit_jump_insn (gen_jump (cont_label)); - emit_barrier (); - - emit_label (hit_label); - - if (is_store) - { - HOST_WIDE_INT v_hi; - rtx dirty_bits = gen_reg_rtx (TImode); - rtx dirty_off = gen_reg_rtx (SImode); - rtx dirty_128 = gen_reg_rtx (TImode); - rtx neg_block_off = gen_reg_rtx (SImode); - - /* Set up mask with one dirty bit per byte of the mem we are - writing, starting from top bit. */ - v_hi = v = -1; - v <<= (128 - GET_MODE_SIZE (GET_MODE (mem))) & 63; - if ((128 - GET_MODE_SIZE (GET_MODE (mem))) >= 64) - { - v_hi = v; - v = 0; - } - emit_move_insn (dirty_bits, immed_double_const (v, v_hi, TImode)); - - /* Form index into cache dirty_bits. eq_index is one of - 0x10, 0x14, 0x18 or 0x1c. Multiplying by 4 gives us - 0x40, 0x50, 0x60 or 0x70 which just happens to be the - offset to each of the four dirty_bits elements. */ - emit_insn (gen_ashlsi3 (dirty_off, eq_index, spu_const (SImode, 2))); - - emit_insn (gen_spu_lqx (dirty_128, tag_addr, dirty_off)); - - /* Rotate bit mask to proper bit. */ - emit_insn (gen_negsi2 (neg_block_off, block_off)); - emit_insn (gen_rotqbybi_ti (dirty_bits, dirty_bits, neg_block_off)); - emit_insn (gen_rotqbi_ti (dirty_bits, dirty_bits, neg_block_off)); - - /* Or in the new dirty bits. */ - emit_insn (gen_iorti3 (dirty_128, dirty_bits, dirty_128)); - - /* Store. */ - emit_insn (gen_spu_stqx (dirty_128, tag_addr, dirty_off)); - } - - emit_label (cont_label); -} - -static rtx -expand_ea_mem (rtx mem, bool is_store) -{ - rtx ea_addr; - rtx data_addr = gen_reg_rtx (Pmode); - rtx new_mem; - - ea_addr = force_reg (EAmode, XEXP (mem, 0)); - if (optimize_size || optimize == 0) - ea_load_store (mem, is_store, ea_addr, data_addr); - else - ea_load_store_inline (mem, is_store, ea_addr, data_addr); - - if (ea_alias_set == -1) - ea_alias_set = new_alias_set (); - - /* We generate a new MEM RTX to refer to the copy of the data - in the cache. We do not copy memory attributes (except the - alignment) from the original MEM, as they may no longer apply - to the cache copy. */ - new_mem = gen_rtx_MEM (GET_MODE (mem), data_addr); - set_mem_alias_set (new_mem, ea_alias_set); - set_mem_align (new_mem, MIN (MEM_ALIGN (mem), 128 * 8)); - - return new_mem; -} - -int -spu_expand_mov (rtx * ops, machine_mode mode) -{ - if (GET_CODE (ops[0]) == SUBREG && !valid_subreg (ops[0])) - { - /* Perform the move in the destination SUBREG's inner mode. */ - ops[0] = SUBREG_REG (ops[0]); - mode = GET_MODE (ops[0]); - ops[1] = gen_lowpart_common (mode, ops[1]); - gcc_assert (ops[1]); - } - - if (GET_CODE (ops[1]) == SUBREG && !valid_subreg (ops[1])) - { - rtx from = SUBREG_REG (ops[1]); - scalar_int_mode imode = int_mode_for_mode (GET_MODE (from)).require (); - - gcc_assert (GET_MODE_CLASS (mode) == MODE_INT - && GET_MODE_CLASS (imode) == MODE_INT - && subreg_lowpart_p (ops[1])); - - if (GET_MODE_SIZE (imode) < 4) - imode = SImode; - if (imode != GET_MODE (from)) - from = gen_rtx_SUBREG (imode, from, 0); - - if (GET_MODE_SIZE (mode) < GET_MODE_SIZE (imode)) - { - enum insn_code icode = convert_optab_handler (trunc_optab, - mode, imode); - emit_insn (GEN_FCN (icode) (ops[0], from)); - } - else - emit_insn (gen_extend_insn (ops[0], from, mode, imode, 1)); - return 1; - } - - /* At least one of the operands needs to be a register. */ - if ((reload_in_progress | reload_completed) == 0 - && !register_operand (ops[0], mode) && !register_operand (ops[1], mode)) - { - rtx temp = force_reg (mode, ops[1]); - emit_move_insn (ops[0], temp); - return 1; - } - if (reload_in_progress || reload_completed) - { - if (CONSTANT_P (ops[1])) - return spu_split_immediate (ops); - return 0; - } - - /* Catch the SImode immediates greater than 0x7fffffff, and sign - extend them. */ - if (GET_CODE (ops[1]) == CONST_INT) - { - HOST_WIDE_INT val = trunc_int_for_mode (INTVAL (ops[1]), mode); - if (val != INTVAL (ops[1])) - { - emit_move_insn (ops[0], GEN_INT (val)); - return 1; - } - } - if (MEM_P (ops[0])) - { - if (MEM_ADDR_SPACE (ops[0])) - ops[0] = expand_ea_mem (ops[0], true); - return spu_split_store (ops); - } - if (MEM_P (ops[1])) - { - if (MEM_ADDR_SPACE (ops[1])) - ops[1] = expand_ea_mem (ops[1], false); - return spu_split_load (ops); - } - - return 0; -} - -static void -spu_convert_move (rtx dst, rtx src) -{ - machine_mode mode = GET_MODE (dst); - machine_mode int_mode = int_mode_for_mode (mode).require (); - rtx reg; - gcc_assert (GET_MODE (src) == TImode); - reg = int_mode != mode ? gen_reg_rtx (int_mode) : dst; - emit_insn (gen_rtx_SET (reg, - gen_rtx_TRUNCATE (int_mode, - gen_rtx_LSHIFTRT (TImode, src, - GEN_INT (int_mode == DImode ? 64 : 96))))); - if (int_mode != mode) - { - reg = simplify_gen_subreg (mode, reg, int_mode, 0); - emit_move_insn (dst, reg); - } -} - -/* Load TImode values into DST0 and DST1 (when it is non-NULL) using - the address from SRC and SRC+16. Return a REG or CONST_INT that - specifies how many bytes to rotate the loaded registers, plus any - extra from EXTRA_ROTQBY. The address and rotate amounts are - normalized to improve merging of loads and rotate computations. */ -static rtx -spu_expand_load (rtx dst0, rtx dst1, rtx src, int extra_rotby) -{ - rtx addr = XEXP (src, 0); - rtx p0, p1, rot, addr0, addr1; - int rot_amt; - - rot = 0; - rot_amt = 0; - - if (MEM_ALIGN (src) >= 128) - /* Address is already aligned; simply perform a TImode load. */ ; - else if (GET_CODE (addr) == PLUS) - { - /* 8 cases: - aligned reg + aligned reg => lqx - aligned reg + unaligned reg => lqx, rotqby - aligned reg + aligned const => lqd - aligned reg + unaligned const => lqd, rotqbyi - unaligned reg + aligned reg => lqx, rotqby - unaligned reg + unaligned reg => lqx, a, rotqby (1 scratch) - unaligned reg + aligned const => lqd, rotqby - unaligned reg + unaligned const -> not allowed by legitimate address - */ - p0 = XEXP (addr, 0); - p1 = XEXP (addr, 1); - if (!reg_aligned_for_addr (p0)) - { - if (REG_P (p1) && !reg_aligned_for_addr (p1)) - { - rot = gen_reg_rtx (SImode); - emit_insn (gen_addsi3 (rot, p0, p1)); - } - else if (GET_CODE (p1) == CONST_INT && (INTVAL (p1) & 15)) - { - if (INTVAL (p1) > 0 - && REG_POINTER (p0) - && INTVAL (p1) * BITS_PER_UNIT - < REGNO_POINTER_ALIGN (REGNO (p0))) - { - rot = gen_reg_rtx (SImode); - emit_insn (gen_addsi3 (rot, p0, p1)); - addr = p0; - } - else - { - rtx x = gen_reg_rtx (SImode); - emit_move_insn (x, p1); - if (!spu_arith_operand (p1, SImode)) - p1 = x; - rot = gen_reg_rtx (SImode); - emit_insn (gen_addsi3 (rot, p0, p1)); - addr = gen_rtx_PLUS (Pmode, p0, x); - } - } - else - rot = p0; - } - else - { - if (GET_CODE (p1) == CONST_INT && (INTVAL (p1) & 15)) - { - rot_amt = INTVAL (p1) & 15; - if (INTVAL (p1) & -16) - { - p1 = GEN_INT (INTVAL (p1) & -16); - addr = gen_rtx_PLUS (SImode, p0, p1); - } - else - addr = p0; - } - else if (REG_P (p1) && !reg_aligned_for_addr (p1)) - rot = p1; - } - } - else if (REG_P (addr)) - { - if (!reg_aligned_for_addr (addr)) - rot = addr; - } - else if (GET_CODE (addr) == CONST) - { - if (GET_CODE (XEXP (addr, 0)) == PLUS - && ALIGNED_SYMBOL_REF_P (XEXP (XEXP (addr, 0), 0)) - && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST_INT) - { - rot_amt = INTVAL (XEXP (XEXP (addr, 0), 1)); - if (rot_amt & -16) - addr = gen_rtx_CONST (Pmode, - gen_rtx_PLUS (Pmode, - XEXP (XEXP (addr, 0), 0), - GEN_INT (rot_amt & -16))); - else - addr = XEXP (XEXP (addr, 0), 0); - } - else - { - rot = gen_reg_rtx (Pmode); - emit_move_insn (rot, addr); - } - } - else if (GET_CODE (addr) == CONST_INT) - { - rot_amt = INTVAL (addr); - addr = GEN_INT (rot_amt & -16); - } - else if (!ALIGNED_SYMBOL_REF_P (addr)) - { - rot = gen_reg_rtx (Pmode); - emit_move_insn (rot, addr); - } - - rot_amt += extra_rotby; - - rot_amt &= 15; - - if (rot && rot_amt) - { - rtx x = gen_reg_rtx (SImode); - emit_insn (gen_addsi3 (x, rot, GEN_INT (rot_amt))); - rot = x; - rot_amt = 0; - } - if (!rot && rot_amt) - rot = GEN_INT (rot_amt); - - addr0 = copy_rtx (addr); - addr0 = gen_rtx_AND (SImode, copy_rtx (addr), GEN_INT (-16)); - emit_insn (gen__movti (dst0, change_address (src, TImode, addr0))); - - if (dst1) - { - addr1 = plus_constant (SImode, copy_rtx (addr), 16); - addr1 = gen_rtx_AND (SImode, addr1, GEN_INT (-16)); - emit_insn (gen__movti (dst1, change_address (src, TImode, addr1))); - } - - return rot; -} - -int -spu_split_load (rtx * ops) -{ - machine_mode mode = GET_MODE (ops[0]); - rtx addr, load, rot; - int rot_amt; - - if (GET_MODE_SIZE (mode) >= 16) - return 0; - - addr = XEXP (ops[1], 0); - gcc_assert (GET_CODE (addr) != AND); - - if (!address_needs_split (ops[1])) - { - ops[1] = change_address (ops[1], TImode, addr); - load = gen_reg_rtx (TImode); - emit_insn (gen__movti (load, ops[1])); - spu_convert_move (ops[0], load); - return 1; - } - - rot_amt = GET_MODE_SIZE (mode) < 4 ? GET_MODE_SIZE (mode) - 4 : 0; - - load = gen_reg_rtx (TImode); - rot = spu_expand_load (load, 0, ops[1], rot_amt); - - if (rot) - emit_insn (gen_rotqby_ti (load, load, rot)); - - spu_convert_move (ops[0], load); - return 1; -} - -int -spu_split_store (rtx * ops) -{ - machine_mode mode = GET_MODE (ops[0]); - rtx reg; - rtx addr, p0, p1, p1_lo, smem; - int aform; - int scalar; - - if (GET_MODE_SIZE (mode) >= 16) - return 0; - - addr = XEXP (ops[0], 0); - gcc_assert (GET_CODE (addr) != AND); - - if (!address_needs_split (ops[0])) - { - reg = gen_reg_rtx (TImode); - emit_insn (gen_spu_convert (reg, ops[1])); - ops[0] = change_address (ops[0], TImode, addr); - emit_move_insn (ops[0], reg); - return 1; - } - - if (GET_CODE (addr) == PLUS) - { - /* 8 cases: - aligned reg + aligned reg => lqx, c?x, shuf, stqx - aligned reg + unaligned reg => lqx, c?x, shuf, stqx - aligned reg + aligned const => lqd, c?d, shuf, stqx - aligned reg + unaligned const => lqd, c?d, shuf, stqx - unaligned reg + aligned reg => lqx, c?x, shuf, stqx - unaligned reg + unaligned reg => lqx, c?x, shuf, stqx - unaligned reg + aligned const => lqd, c?d, shuf, stqx - unaligned reg + unaligned const -> lqx, c?d, shuf, stqx - */ - aform = 0; - p0 = XEXP (addr, 0); - p1 = p1_lo = XEXP (addr, 1); - if (REG_P (p0) && GET_CODE (p1) == CONST_INT) - { - p1_lo = GEN_INT (INTVAL (p1) & 15); - if (reg_aligned_for_addr (p0)) - { - p1 = GEN_INT (INTVAL (p1) & -16); - if (p1 == const0_rtx) - addr = p0; - else - addr = gen_rtx_PLUS (SImode, p0, p1); - } - else - { - rtx x = gen_reg_rtx (SImode); - emit_move_insn (x, p1); - addr = gen_rtx_PLUS (SImode, p0, x); - } - } - } - else if (REG_P (addr)) - { - aform = 0; - p0 = addr; - p1 = p1_lo = const0_rtx; - } - else - { - aform = 1; - p0 = gen_rtx_REG (SImode, STACK_POINTER_REGNUM); - p1 = 0; /* aform doesn't use p1 */ - p1_lo = addr; - if (ALIGNED_SYMBOL_REF_P (addr)) - p1_lo = const0_rtx; - else if (GET_CODE (addr) == CONST - && GET_CODE (XEXP (addr, 0)) == PLUS - && ALIGNED_SYMBOL_REF_P (XEXP (XEXP (addr, 0), 0)) - && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST_INT) - { - HOST_WIDE_INT v = INTVAL (XEXP (XEXP (addr, 0), 1)); - if ((v & -16) != 0) - addr = gen_rtx_CONST (Pmode, - gen_rtx_PLUS (Pmode, - XEXP (XEXP (addr, 0), 0), - GEN_INT (v & -16))); - else - addr = XEXP (XEXP (addr, 0), 0); - p1_lo = GEN_INT (v & 15); - } - else if (GET_CODE (addr) == CONST_INT) - { - p1_lo = GEN_INT (INTVAL (addr) & 15); - addr = GEN_INT (INTVAL (addr) & -16); - } - else - { - p1_lo = gen_reg_rtx (SImode); - emit_move_insn (p1_lo, addr); - } - } - - gcc_assert (aform == 0 || aform == 1); - reg = gen_reg_rtx (TImode); - - scalar = store_with_one_insn_p (ops[0]); - if (!scalar) - { - /* We could copy the flags from the ops[0] MEM to mem here, - We don't because we want this load to be optimized away if - possible, and copying the flags will prevent that in certain - cases, e.g. consider the volatile flag. */ - - rtx pat = gen_reg_rtx (TImode); - rtx lmem = change_address (ops[0], TImode, copy_rtx (addr)); - set_mem_alias_set (lmem, 0); - emit_insn (gen_movti (reg, lmem)); - - if (!p0 || reg_aligned_for_addr (p0)) - p0 = stack_pointer_rtx; - if (!p1_lo) - p1_lo = const0_rtx; - - emit_insn (gen_cpat (pat, p0, p1_lo, GEN_INT (GET_MODE_SIZE (mode)))); - emit_insn (gen_shufb (reg, ops[1], reg, pat)); - } - else - { - if (GET_CODE (ops[1]) == REG) - emit_insn (gen_spu_convert (reg, ops[1])); - else if (GET_CODE (ops[1]) == SUBREG) - emit_insn (gen_spu_convert (reg, SUBREG_REG (ops[1]))); - else - abort (); - } - - if (GET_MODE_SIZE (mode) < 4 && scalar) - emit_insn (gen_ashlti3 - (reg, reg, GEN_INT (32 - GET_MODE_BITSIZE (mode)))); - - smem = change_address (ops[0], TImode, copy_rtx (addr)); - /* We can't use the previous alias set because the memory has changed - size and can potentially overlap objects of other types. */ - set_mem_alias_set (smem, 0); - - emit_insn (gen_movti (smem, reg)); - return 1; -} - -/* Return TRUE if X is MEM which is a struct member reference - and the member can safely be loaded and stored with a single - instruction because it is padded. */ -static int -mem_is_padded_component_ref (rtx x) -{ - tree t = MEM_EXPR (x); - tree r; - if (!t || TREE_CODE (t) != COMPONENT_REF) - return 0; - t = TREE_OPERAND (t, 1); - if (!t || TREE_CODE (t) != FIELD_DECL - || DECL_ALIGN (t) < 128 || AGGREGATE_TYPE_P (TREE_TYPE (t))) - return 0; - /* Only do this for RECORD_TYPEs, not UNION_TYPEs. */ - r = DECL_FIELD_CONTEXT (t); - if (!r || TREE_CODE (r) != RECORD_TYPE) - return 0; - /* Make sure they are the same mode */ - if (GET_MODE (x) != TYPE_MODE (TREE_TYPE (t))) - return 0; - /* If there are no following fields then the field alignment assures - the structure is padded to the alignment which means this field is - padded too. */ - if (TREE_CHAIN (t) == 0) - return 1; - /* If the following field is also aligned then this field will be - padded. */ - t = TREE_CHAIN (t); - if (TREE_CODE (t) == FIELD_DECL && DECL_ALIGN (t) >= 128) - return 1; - return 0; -} - -/* Parse the -mfixed-range= option string. */ -static void -fix_range (const char *const_str) -{ - int i, first, last; - char *str, *dash, *comma; - - /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and - REG2 are either register names or register numbers. The effect - of this option is to mark the registers in the range from REG1 to - REG2 as ``fixed'' so they won't be used by the compiler. */ - - i = strlen (const_str); - str = (char *) alloca (i + 1); - memcpy (str, const_str, i + 1); - - while (1) - { - dash = strchr (str, '-'); - if (!dash) - { - warning (0, "value of %<-mfixed-range%> must have form REG1-REG2"); - return; - } - *dash = '\0'; - comma = strchr (dash + 1, ','); - if (comma) - *comma = '\0'; - - first = decode_reg_name (str); - if (first < 0) - { - warning (0, "unknown register name: %s", str); - return; - } - - last = decode_reg_name (dash + 1); - if (last < 0) - { - warning (0, "unknown register name: %s", dash + 1); - return; - } - - *dash = '-'; - - if (first > last) - { - warning (0, "%s-%s is an empty range", str, dash + 1); - return; - } - - for (i = first; i <= last; ++i) - fixed_regs[i] = call_used_regs[i] = 1; - - if (!comma) - break; - - *comma = ','; - str = comma + 1; - } -} - -/* Return TRUE if x is a CONST_INT, CONST_DOUBLE or CONST_VECTOR that - can be generated using the fsmbi instruction. */ -int -fsmbi_const_p (rtx x) -{ - if (CONSTANT_P (x)) - { - /* We can always choose TImode for CONST_INT because the high bits - of an SImode will always be all 1s, i.e., valid for fsmbi. */ - enum immediate_class c = classify_immediate (x, TImode); - return c == IC_FSMBI || (!epilogue_completed && c == IC_FSMBI2); - } - return 0; -} - -/* Return TRUE if x is a CONST_INT, CONST_DOUBLE or CONST_VECTOR that - can be generated using the cbd, chd, cwd or cdd instruction. */ -int -cpat_const_p (rtx x, machine_mode mode) -{ - if (CONSTANT_P (x)) - { - enum immediate_class c = classify_immediate (x, mode); - return c == IC_CPAT; - } - return 0; -} - -rtx -gen_cpat_const (rtx * ops) -{ - unsigned char dst[16]; - int i, offset, shift, isize; - if (GET_CODE (ops[3]) != CONST_INT - || GET_CODE (ops[2]) != CONST_INT - || (GET_CODE (ops[1]) != CONST_INT - && GET_CODE (ops[1]) != REG)) - return 0; - if (GET_CODE (ops[1]) == REG - && (!REG_POINTER (ops[1]) - || REGNO_POINTER_ALIGN (ORIGINAL_REGNO (ops[1])) < 128)) - return 0; - - for (i = 0; i < 16; i++) - dst[i] = i + 16; - isize = INTVAL (ops[3]); - if (isize == 1) - shift = 3; - else if (isize == 2) - shift = 2; - else - shift = 0; - offset = (INTVAL (ops[2]) + - (GET_CODE (ops[1]) == - CONST_INT ? INTVAL (ops[1]) : 0)) & 15; - for (i = 0; i < isize; i++) - dst[offset + i] = i + shift; - return array_to_constant (TImode, dst); -} - -/* Convert a CONST_INT, CONST_DOUBLE, or CONST_VECTOR into a 16 byte - array. Use MODE for CONST_INT's. When the constant's mode is smaller - than 16 bytes, the value is repeated across the rest of the array. */ -void -constant_to_array (machine_mode mode, rtx x, unsigned char arr[16]) -{ - HOST_WIDE_INT val; - int i, j, first; - - memset (arr, 0, 16); - mode = GET_MODE (x) != VOIDmode ? GET_MODE (x) : mode; - if (GET_CODE (x) == CONST_INT - || (GET_CODE (x) == CONST_DOUBLE - && (mode == SFmode || mode == DFmode))) - { - gcc_assert (mode != VOIDmode && mode != BLKmode); - - if (GET_CODE (x) == CONST_DOUBLE) - val = const_double_to_hwint (x); - else - val = INTVAL (x); - first = GET_MODE_SIZE (mode) - 1; - for (i = first; i >= 0; i--) - { - arr[i] = val & 0xff; - val >>= 8; - } - /* Splat the constant across the whole array. */ - for (j = 0, i = first + 1; i < 16; i++) - { - arr[i] = arr[j]; - j = (j == first) ? 0 : j + 1; - } - } - else if (GET_CODE (x) == CONST_DOUBLE) - { - val = CONST_DOUBLE_LOW (x); - for (i = 15; i >= 8; i--) - { - arr[i] = val & 0xff; - val >>= 8; - } - val = CONST_DOUBLE_HIGH (x); - for (i = 7; i >= 0; i--) - { - arr[i] = val & 0xff; - val >>= 8; - } - } - else if (GET_CODE (x) == CONST_VECTOR) - { - int units; - rtx elt; - mode = GET_MODE_INNER (mode); - units = CONST_VECTOR_NUNITS (x); - for (i = 0; i < units; i++) - { - elt = CONST_VECTOR_ELT (x, i); - if (GET_CODE (elt) == CONST_INT || GET_CODE (elt) == CONST_DOUBLE) - { - if (GET_CODE (elt) == CONST_DOUBLE) - val = const_double_to_hwint (elt); - else - val = INTVAL (elt); - first = GET_MODE_SIZE (mode) - 1; - if (first + i * GET_MODE_SIZE (mode) > 16) - abort (); - for (j = first; j >= 0; j--) - { - arr[j + i * GET_MODE_SIZE (mode)] = val & 0xff; - val >>= 8; - } - } - } - } - else - gcc_unreachable(); -} - -/* Convert a 16 byte array to a constant of mode MODE. When MODE is - smaller than 16 bytes, use the bytes that would represent that value - in a register, e.g., for QImode return the value of arr[3]. */ -rtx -array_to_constant (machine_mode mode, const unsigned char arr[16]) -{ - machine_mode inner_mode; - rtvec v; - int units, size, i, j, k; - HOST_WIDE_INT val; - - if (GET_MODE_CLASS (mode) == MODE_INT - && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT) - { - j = GET_MODE_SIZE (mode); - i = j < 4 ? 4 - j : 0; - for (val = 0; i < j; i++) - val = (val << 8) | arr[i]; - val = trunc_int_for_mode (val, mode); - return GEN_INT (val); - } - - if (mode == TImode) - { - HOST_WIDE_INT high; - for (i = high = 0; i < 8; i++) - high = (high << 8) | arr[i]; - for (i = 8, val = 0; i < 16; i++) - val = (val << 8) | arr[i]; - return immed_double_const (val, high, TImode); - } - if (mode == SFmode) - { - val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; - val = trunc_int_for_mode (val, SImode); - return hwint_to_const_double (SFmode, val); - } - if (mode == DFmode) - { - for (i = 0, val = 0; i < 8; i++) - val = (val << 8) | arr[i]; - return hwint_to_const_double (DFmode, val); - } - - if (!VECTOR_MODE_P (mode)) - abort (); - - units = GET_MODE_NUNITS (mode); - size = GET_MODE_UNIT_SIZE (mode); - inner_mode = GET_MODE_INNER (mode); - v = rtvec_alloc (units); - - for (k = i = 0; i < units; ++i) - { - val = 0; - for (j = 0; j < size; j++, k++) - val = (val << 8) | arr[k]; - - if (GET_MODE_CLASS (inner_mode) == MODE_FLOAT) - RTVEC_ELT (v, i) = hwint_to_const_double (inner_mode, val); - else - RTVEC_ELT (v, i) = GEN_INT (trunc_int_for_mode (val, inner_mode)); - } - if (k > 16) - abort (); - - return gen_rtx_CONST_VECTOR (mode, v); -} - -static void -reloc_diagnostic (rtx x) -{ - tree decl = 0; - if (!flag_pic || !(TARGET_WARN_RELOC || TARGET_ERROR_RELOC)) - return; - - if (GET_CODE (x) == SYMBOL_REF) - decl = SYMBOL_REF_DECL (x); - else if (GET_CODE (x) == CONST - && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF) - decl = SYMBOL_REF_DECL (XEXP (XEXP (x, 0), 0)); - - /* SYMBOL_REF_DECL is not necessarily a DECL. */ - if (decl && !DECL_P (decl)) - decl = 0; - - /* The decl could be a string constant. */ - if (decl && DECL_P (decl)) - { - location_t loc; - /* We use last_assemble_variable_decl to get line information. It's - not always going to be right and might not even be close, but will - be right for the more common cases. */ - if (!last_assemble_variable_decl || in_section == ctors_section) - loc = DECL_SOURCE_LOCATION (decl); - else - loc = DECL_SOURCE_LOCATION (last_assemble_variable_decl); - - if (TARGET_WARN_RELOC) - warning_at (loc, 0, - "creating run-time relocation for %qD", decl); - else - error_at (loc, - "creating run-time relocation for %qD", decl); - } - else - { - if (TARGET_WARN_RELOC) - warning_at (input_location, 0, "creating run-time relocation"); - else - error_at (input_location, "creating run-time relocation"); - } -} - -/* Hook into assemble_integer so we can generate an error for run-time - relocations. The SPU ABI disallows them. */ -static bool -spu_assemble_integer (rtx x, unsigned int size, int aligned_p) -{ - /* By default run-time relocations aren't supported, but we allow them - in case users support it in their own run-time loader. And we provide - a warning for those users that don't. */ - if ((GET_CODE (x) == SYMBOL_REF) - || GET_CODE (x) == LABEL_REF || GET_CODE (x) == CONST) - reloc_diagnostic (x); - - return default_assemble_integer (x, size, aligned_p); -} - -static void -spu_asm_globalize_label (FILE * file, const char *name) -{ - fputs ("\t.global\t", file); - assemble_name (file, name); - fputs ("\n", file); -} - -static bool -spu_rtx_costs (rtx x, machine_mode mode, int outer_code ATTRIBUTE_UNUSED, - int opno ATTRIBUTE_UNUSED, int *total, - bool speed ATTRIBUTE_UNUSED) -{ - int code = GET_CODE (x); - int cost = COSTS_N_INSNS (2); - - /* Folding to a CONST_VECTOR will use extra space but there might - be only a small savings in cycles. We'd like to use a CONST_VECTOR - only if it allows us to fold away multiple insns. Changing the cost - of a CONST_VECTOR here (or in CONST_COSTS) doesn't help though - because this cost will only be compared against a single insn. - if (code == CONST_VECTOR) - return spu_legitimate_constant_p (mode, x) ? cost : COSTS_N_INSNS (6); - */ - - /* Use defaults for float operations. Not accurate but good enough. */ - if (mode == DFmode) - { - *total = COSTS_N_INSNS (13); - return true; - } - if (mode == SFmode) - { - *total = COSTS_N_INSNS (6); - return true; - } - switch (code) - { - case CONST_INT: - if (satisfies_constraint_K (x)) - *total = 0; - else if (INTVAL (x) >= -0x80000000ll && INTVAL (x) <= 0xffffffffll) - *total = COSTS_N_INSNS (1); - else - *total = COSTS_N_INSNS (3); - return true; - - case CONST: - *total = COSTS_N_INSNS (3); - return true; - - case LABEL_REF: - case SYMBOL_REF: - *total = COSTS_N_INSNS (0); - return true; - - case CONST_DOUBLE: - *total = COSTS_N_INSNS (5); - return true; - - case FLOAT_EXTEND: - case FLOAT_TRUNCATE: - case FLOAT: - case UNSIGNED_FLOAT: - case FIX: - case UNSIGNED_FIX: - *total = COSTS_N_INSNS (7); - return true; - - case PLUS: - if (mode == TImode) - { - *total = COSTS_N_INSNS (9); - return true; - } - break; - - case MULT: - cost = - GET_CODE (XEXP (x, 0)) == - REG ? COSTS_N_INSNS (12) : COSTS_N_INSNS (7); - if (mode == SImode && GET_CODE (XEXP (x, 0)) == REG) - { - if (GET_CODE (XEXP (x, 1)) == CONST_INT) - { - HOST_WIDE_INT val = INTVAL (XEXP (x, 1)); - cost = COSTS_N_INSNS (14); - if ((val & 0xffff) == 0) - cost = COSTS_N_INSNS (9); - else if (val > 0 && val < 0x10000) - cost = COSTS_N_INSNS (11); - } - } - *total = cost; - return true; - case DIV: - case UDIV: - case MOD: - case UMOD: - *total = COSTS_N_INSNS (20); - return true; - case ROTATE: - case ROTATERT: - case ASHIFT: - case ASHIFTRT: - case LSHIFTRT: - *total = COSTS_N_INSNS (4); - return true; - case UNSPEC: - if (XINT (x, 1) == UNSPEC_CONVERT) - *total = COSTS_N_INSNS (0); - else - *total = COSTS_N_INSNS (4); - return true; - } - /* Scale cost by mode size. Except when initializing (cfun->decl == 0). */ - if (GET_MODE_CLASS (mode) == MODE_INT - && GET_MODE_SIZE (mode) > GET_MODE_SIZE (SImode) && cfun && cfun->decl) - cost = cost * (GET_MODE_SIZE (mode) / GET_MODE_SIZE (SImode)) - * (GET_MODE_SIZE (mode) / GET_MODE_SIZE (SImode)); - *total = cost; - return true; -} - -static scalar_int_mode -spu_unwind_word_mode (void) -{ - return SImode; -} - -/* Decide whether we can make a sibling call to a function. DECL is the - declaration of the function being targeted by the call and EXP is the - CALL_EXPR representing the call. */ -static bool -spu_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED) -{ - return decl && !TARGET_LARGE_MEM; -} - -/* We need to correctly update the back chain pointer and the Available - Stack Size (which is in the second slot of the sp register.) */ -void -spu_allocate_stack (rtx op0, rtx op1) -{ - HOST_WIDE_INT v; - rtx chain = gen_reg_rtx (V4SImode); - rtx stack_bot = gen_frame_mem (V4SImode, stack_pointer_rtx); - rtx sp = gen_reg_rtx (V4SImode); - rtx splatted = gen_reg_rtx (V4SImode); - rtx pat = gen_reg_rtx (TImode); - - /* copy the back chain so we can save it back again. */ - emit_move_insn (chain, stack_bot); - - op1 = force_reg (SImode, op1); - - v = 0x1020300010203ll; - emit_move_insn (pat, immed_double_const (v, v, TImode)); - emit_insn (gen_shufb (splatted, op1, op1, pat)); - - emit_insn (gen_spu_convert (sp, stack_pointer_rtx)); - emit_insn (gen_subv4si3 (sp, sp, splatted)); - - if (flag_stack_check || flag_stack_clash_protection) - { - rtx avail = gen_reg_rtx(SImode); - rtx result = gen_reg_rtx(SImode); - emit_insn (gen_vec_extractv4sisi (avail, sp, GEN_INT (1))); - emit_insn (gen_cgt_si(result, avail, GEN_INT (-1))); - emit_insn (gen_spu_heq (result, GEN_INT(0) )); - } - - emit_insn (gen_spu_convert (stack_pointer_rtx, sp)); - - emit_move_insn (stack_bot, chain); - - emit_move_insn (op0, virtual_stack_dynamic_rtx); -} - -void -spu_restore_stack_nonlocal (rtx op0 ATTRIBUTE_UNUSED, rtx op1) -{ - static unsigned char arr[16] = - { 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 }; - rtx temp = gen_reg_rtx (SImode); - rtx temp2 = gen_reg_rtx (SImode); - rtx temp3 = gen_reg_rtx (V4SImode); - rtx temp4 = gen_reg_rtx (V4SImode); - rtx pat = gen_reg_rtx (TImode); - rtx sp = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); - - /* Restore the backchain from the first word, sp from the second. */ - emit_move_insn (temp2, adjust_address_nv (op1, SImode, 0)); - emit_move_insn (temp, adjust_address_nv (op1, SImode, 4)); - - emit_move_insn (pat, array_to_constant (TImode, arr)); - - /* Compute Available Stack Size for sp */ - emit_insn (gen_subsi3 (temp, temp, stack_pointer_rtx)); - emit_insn (gen_shufb (temp3, temp, temp, pat)); - - /* Compute Available Stack Size for back chain */ - emit_insn (gen_subsi3 (temp2, temp2, stack_pointer_rtx)); - emit_insn (gen_shufb (temp4, temp2, temp2, pat)); - emit_insn (gen_addv4si3 (temp4, sp, temp4)); - - emit_insn (gen_addv4si3 (sp, sp, temp3)); - emit_move_insn (gen_frame_mem (V4SImode, stack_pointer_rtx), temp4); -} - -static void -spu_init_libfuncs (void) -{ - set_optab_libfunc (smul_optab, DImode, "__muldi3"); - set_optab_libfunc (sdiv_optab, DImode, "__divdi3"); - set_optab_libfunc (smod_optab, DImode, "__moddi3"); - set_optab_libfunc (udiv_optab, DImode, "__udivdi3"); - set_optab_libfunc (umod_optab, DImode, "__umoddi3"); - set_optab_libfunc (udivmod_optab, DImode, "__udivmoddi4"); - set_optab_libfunc (ffs_optab, DImode, "__ffsdi2"); - set_optab_libfunc (clz_optab, DImode, "__clzdi2"); - set_optab_libfunc (ctz_optab, DImode, "__ctzdi2"); - set_optab_libfunc (clrsb_optab, DImode, "__clrsbdi2"); - set_optab_libfunc (popcount_optab, DImode, "__popcountdi2"); - set_optab_libfunc (parity_optab, DImode, "__paritydi2"); - - set_conv_libfunc (ufloat_optab, DFmode, SImode, "__float_unssidf"); - set_conv_libfunc (ufloat_optab, DFmode, DImode, "__float_unsdidf"); - - set_optab_libfunc (addv_optab, SImode, "__addvsi3"); - set_optab_libfunc (subv_optab, SImode, "__subvsi3"); - set_optab_libfunc (smulv_optab, SImode, "__mulvsi3"); - set_optab_libfunc (sdivv_optab, SImode, "__divvsi3"); - set_optab_libfunc (negv_optab, SImode, "__negvsi2"); - set_optab_libfunc (absv_optab, SImode, "__absvsi2"); - set_optab_libfunc (addv_optab, DImode, "__addvdi3"); - set_optab_libfunc (subv_optab, DImode, "__subvdi3"); - set_optab_libfunc (smulv_optab, DImode, "__mulvdi3"); - set_optab_libfunc (sdivv_optab, DImode, "__divvdi3"); - set_optab_libfunc (negv_optab, DImode, "__negvdi2"); - set_optab_libfunc (absv_optab, DImode, "__absvdi2"); - - set_optab_libfunc (smul_optab, TImode, "__multi3"); - set_optab_libfunc (sdiv_optab, TImode, "__divti3"); - set_optab_libfunc (smod_optab, TImode, "__modti3"); - set_optab_libfunc (udiv_optab, TImode, "__udivti3"); - set_optab_libfunc (umod_optab, TImode, "__umodti3"); - set_optab_libfunc (udivmod_optab, TImode, "__udivmodti4"); -} - -/* Make a subreg, stripping any existing subreg. We could possibly just - call simplify_subreg, but in this case we know what we want. */ -rtx -spu_gen_subreg (machine_mode mode, rtx x) -{ - if (GET_CODE (x) == SUBREG) - x = SUBREG_REG (x); - if (GET_MODE (x) == mode) - return x; - return gen_rtx_SUBREG (mode, x, 0); -} - -static bool -spu_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) -{ - return (TYPE_MODE (type) == BLKmode - && ((type) == 0 - || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST - || int_size_in_bytes (type) > - (MAX_REGISTER_RETURN * UNITS_PER_WORD))); -} - -/* Create the built-in types and functions */ - -enum spu_function_code -{ -#define DEF_BUILTIN(fcode, icode, name, type, params) fcode, -#include "spu-builtins.def" -#undef DEF_BUILTIN - NUM_SPU_BUILTINS -}; - -extern GTY(()) struct spu_builtin_description spu_builtins[NUM_SPU_BUILTINS]; - -struct spu_builtin_description spu_builtins[] = { -#define DEF_BUILTIN(fcode, icode, name, type, params) \ - {fcode, icode, name, type, params}, -#include "spu-builtins.def" -#undef DEF_BUILTIN -}; - -static GTY(()) tree spu_builtin_decls[NUM_SPU_BUILTINS]; - -/* Returns the spu builtin decl for CODE. */ - -static tree -spu_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED) -{ - if (code >= NUM_SPU_BUILTINS) - return error_mark_node; - - return spu_builtin_decls[code]; -} - - -static void -spu_init_builtins (void) -{ - struct spu_builtin_description *d; - unsigned int i; - - V16QI_type_node = build_vector_type (intQI_type_node, 16); - V8HI_type_node = build_vector_type (intHI_type_node, 8); - V4SI_type_node = build_vector_type (intSI_type_node, 4); - V2DI_type_node = build_vector_type (intDI_type_node, 2); - V4SF_type_node = build_vector_type (float_type_node, 4); - V2DF_type_node = build_vector_type (double_type_node, 2); - - unsigned_V16QI_type_node = build_vector_type (unsigned_intQI_type_node, 16); - unsigned_V8HI_type_node = build_vector_type (unsigned_intHI_type_node, 8); - unsigned_V4SI_type_node = build_vector_type (unsigned_intSI_type_node, 4); - unsigned_V2DI_type_node = build_vector_type (unsigned_intDI_type_node, 2); - - spu_builtin_types[SPU_BTI_QUADWORD] = V16QI_type_node; - - spu_builtin_types[SPU_BTI_7] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_S7] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_U7] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_S10] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_S10_4] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_U14] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_16] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_S16] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_S16_2] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_U16] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_U16_2] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_U18] = global_trees[TI_INTSI_TYPE]; - - spu_builtin_types[SPU_BTI_INTQI] = global_trees[TI_INTQI_TYPE]; - spu_builtin_types[SPU_BTI_INTHI] = global_trees[TI_INTHI_TYPE]; - spu_builtin_types[SPU_BTI_INTSI] = global_trees[TI_INTSI_TYPE]; - spu_builtin_types[SPU_BTI_INTDI] = global_trees[TI_INTDI_TYPE]; - spu_builtin_types[SPU_BTI_UINTQI] = global_trees[TI_UINTQI_TYPE]; - spu_builtin_types[SPU_BTI_UINTHI] = global_trees[TI_UINTHI_TYPE]; - spu_builtin_types[SPU_BTI_UINTSI] = global_trees[TI_UINTSI_TYPE]; - spu_builtin_types[SPU_BTI_UINTDI] = global_trees[TI_UINTDI_TYPE]; - - spu_builtin_types[SPU_BTI_FLOAT] = global_trees[TI_FLOAT_TYPE]; - spu_builtin_types[SPU_BTI_DOUBLE] = global_trees[TI_DOUBLE_TYPE]; - - spu_builtin_types[SPU_BTI_VOID] = global_trees[TI_VOID_TYPE]; - - spu_builtin_types[SPU_BTI_PTR] = - build_pointer_type (build_qualified_type - (void_type_node, - TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)); - - /* For each builtin we build a new prototype. The tree code will make - sure nodes are shared. */ - for (i = 0, d = spu_builtins; i < NUM_SPU_BUILTINS; i++, d++) - { - tree p; - char name[64]; /* build_function will make a copy. */ - int parm; - - if (d->name == 0) - continue; - - /* Find last parm. */ - for (parm = 1; d->parm[parm] != SPU_BTI_END_OF_PARAMS; parm++) - ; - - p = void_list_node; - while (parm > 1) - p = tree_cons (NULL_TREE, spu_builtin_types[d->parm[--parm]], p); - - p = build_function_type (spu_builtin_types[d->parm[0]], p); - - sprintf (name, "__builtin_%s", d->name); - spu_builtin_decls[i] = - add_builtin_function (name, p, i, BUILT_IN_MD, NULL, NULL_TREE); - if (d->fcode == SPU_MASK_FOR_LOAD) - TREE_READONLY (spu_builtin_decls[i]) = 1; - - /* These builtins don't throw. */ - TREE_NOTHROW (spu_builtin_decls[i]) = 1; - } -} - -void -spu_restore_stack_block (rtx op0 ATTRIBUTE_UNUSED, rtx op1) -{ - static unsigned char arr[16] = - { 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 }; - - rtx temp = gen_reg_rtx (Pmode); - rtx temp2 = gen_reg_rtx (V4SImode); - rtx temp3 = gen_reg_rtx (V4SImode); - rtx pat = gen_reg_rtx (TImode); - rtx sp = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); - - emit_move_insn (pat, array_to_constant (TImode, arr)); - - /* Restore the sp. */ - emit_move_insn (temp, op1); - emit_move_insn (temp2, gen_frame_mem (V4SImode, stack_pointer_rtx)); - - /* Compute available stack size for sp. */ - emit_insn (gen_subsi3 (temp, temp, stack_pointer_rtx)); - emit_insn (gen_shufb (temp3, temp, temp, pat)); - - emit_insn (gen_addv4si3 (sp, sp, temp3)); - emit_move_insn (gen_frame_mem (V4SImode, stack_pointer_rtx), temp2); -} - -int -spu_safe_dma (HOST_WIDE_INT channel) -{ - return TARGET_SAFE_DMA && channel >= 21 && channel <= 27; -} - -void -spu_builtin_splats (rtx ops[]) -{ - machine_mode mode = GET_MODE (ops[0]); - if (GET_CODE (ops[1]) == CONST_INT || GET_CODE (ops[1]) == CONST_DOUBLE) - { - unsigned char arr[16]; - constant_to_array (GET_MODE_INNER (mode), ops[1], arr); - emit_move_insn (ops[0], array_to_constant (mode, arr)); - } - else - { - rtx reg = gen_reg_rtx (TImode); - rtx shuf; - if (GET_CODE (ops[1]) != REG - && GET_CODE (ops[1]) != SUBREG) - ops[1] = force_reg (GET_MODE_INNER (mode), ops[1]); - switch (mode) - { - case E_V2DImode: - case E_V2DFmode: - shuf = - immed_double_const (0x0001020304050607ll, 0x1011121314151617ll, - TImode); - break; - case E_V4SImode: - case E_V4SFmode: - shuf = - immed_double_const (0x0001020300010203ll, 0x0001020300010203ll, - TImode); - break; - case E_V8HImode: - shuf = - immed_double_const (0x0203020302030203ll, 0x0203020302030203ll, - TImode); - break; - case E_V16QImode: - shuf = - immed_double_const (0x0303030303030303ll, 0x0303030303030303ll, - TImode); - break; - default: - abort (); - } - emit_move_insn (reg, shuf); - emit_insn (gen_shufb (ops[0], ops[1], ops[1], reg)); - } -} - -void -spu_builtin_extract (rtx ops[]) -{ - machine_mode mode; - rtx rot, from, tmp; - - mode = GET_MODE (ops[1]); - - if (GET_CODE (ops[2]) == CONST_INT) - { - switch (mode) - { - case E_V16QImode: - emit_insn (gen_vec_extractv16qiqi (ops[0], ops[1], ops[2])); - break; - case E_V8HImode: - emit_insn (gen_vec_extractv8hihi (ops[0], ops[1], ops[2])); - break; - case E_V4SFmode: - emit_insn (gen_vec_extractv4sfsf (ops[0], ops[1], ops[2])); - break; - case E_V4SImode: - emit_insn (gen_vec_extractv4sisi (ops[0], ops[1], ops[2])); - break; - case E_V2DImode: - emit_insn (gen_vec_extractv2didi (ops[0], ops[1], ops[2])); - break; - case E_V2DFmode: - emit_insn (gen_vec_extractv2dfdf (ops[0], ops[1], ops[2])); - break; - default: - abort (); - } - return; - } - - from = spu_gen_subreg (TImode, ops[1]); - rot = gen_reg_rtx (TImode); - tmp = gen_reg_rtx (SImode); - - switch (mode) - { - case E_V16QImode: - emit_insn (gen_addsi3 (tmp, ops[2], GEN_INT (-3))); - break; - case E_V8HImode: - emit_insn (gen_addsi3 (tmp, ops[2], ops[2])); - emit_insn (gen_addsi3 (tmp, tmp, GEN_INT (-2))); - break; - case E_V4SFmode: - case E_V4SImode: - emit_insn (gen_ashlsi3 (tmp, ops[2], GEN_INT (2))); - break; - case E_V2DImode: - case E_V2DFmode: - emit_insn (gen_ashlsi3 (tmp, ops[2], GEN_INT (3))); - break; - default: - abort (); - } - emit_insn (gen_rotqby_ti (rot, from, tmp)); - - emit_insn (gen_spu_convert (ops[0], rot)); -} - -void -spu_builtin_insert (rtx ops[]) -{ - machine_mode mode = GET_MODE (ops[0]); - machine_mode imode = GET_MODE_INNER (mode); - rtx mask = gen_reg_rtx (TImode); - rtx offset; - - if (GET_CODE (ops[3]) == CONST_INT) - offset = GEN_INT (INTVAL (ops[3]) * GET_MODE_SIZE (imode)); - else - { - offset = gen_reg_rtx (SImode); - emit_insn (gen_mulsi3 - (offset, ops[3], GEN_INT (GET_MODE_SIZE (imode)))); - } - emit_insn (gen_cpat - (mask, stack_pointer_rtx, offset, - GEN_INT (GET_MODE_SIZE (imode)))); - emit_insn (gen_shufb (ops[0], ops[1], ops[2], mask)); -} - -void -spu_builtin_promote (rtx ops[]) -{ - machine_mode mode, imode; - rtx rot, from, offset; - HOST_WIDE_INT pos; - - mode = GET_MODE (ops[0]); - imode = GET_MODE_INNER (mode); - - from = gen_reg_rtx (TImode); - rot = spu_gen_subreg (TImode, ops[0]); - - emit_insn (gen_spu_convert (from, ops[1])); - - if (GET_CODE (ops[2]) == CONST_INT) - { - pos = -GET_MODE_SIZE (imode) * INTVAL (ops[2]); - if (GET_MODE_SIZE (imode) < 4) - pos += 4 - GET_MODE_SIZE (imode); - offset = GEN_INT (pos & 15); - } - else - { - offset = gen_reg_rtx (SImode); - switch (mode) - { - case E_V16QImode: - emit_insn (gen_subsi3 (offset, GEN_INT (3), ops[2])); - break; - case E_V8HImode: - emit_insn (gen_subsi3 (offset, GEN_INT (1), ops[2])); - emit_insn (gen_addsi3 (offset, offset, offset)); - break; - case E_V4SFmode: - case E_V4SImode: - emit_insn (gen_subsi3 (offset, GEN_INT (0), ops[2])); - emit_insn (gen_ashlsi3 (offset, offset, GEN_INT (2))); - break; - case E_V2DImode: - case E_V2DFmode: - emit_insn (gen_ashlsi3 (offset, ops[2], GEN_INT (3))); - break; - default: - abort (); - } - } - emit_insn (gen_rotqby_ti (rot, from, offset)); -} - -static void -spu_trampoline_init (rtx m_tramp, tree fndecl, rtx cxt) -{ - rtx fnaddr = XEXP (DECL_RTL (fndecl), 0); - rtx shuf = gen_reg_rtx (V4SImode); - rtx insn = gen_reg_rtx (V4SImode); - rtx shufc; - rtx insnc; - rtx mem; - - fnaddr = force_reg (SImode, fnaddr); - cxt = force_reg (SImode, cxt); - - if (TARGET_LARGE_MEM) - { - rtx rotl = gen_reg_rtx (V4SImode); - rtx mask = gen_reg_rtx (V4SImode); - rtx bi = gen_reg_rtx (SImode); - static unsigned char const shufa[16] = { - 2, 3, 0, 1, 18, 19, 16, 17, - 0, 1, 2, 3, 16, 17, 18, 19 - }; - static unsigned char const insna[16] = { - 0x41, 0, 0, 79, - 0x41, 0, 0, STATIC_CHAIN_REGNUM, - 0x60, 0x80, 0, 79, - 0x60, 0x80, 0, STATIC_CHAIN_REGNUM - }; - - shufc = force_reg (TImode, array_to_constant (TImode, shufa)); - insnc = force_reg (V4SImode, array_to_constant (V4SImode, insna)); - - emit_insn (gen_shufb (shuf, fnaddr, cxt, shufc)); - emit_insn (gen_vrotlv4si3 (rotl, shuf, spu_const (V4SImode, 7))); - emit_insn (gen_movv4si (mask, spu_const (V4SImode, 0xffff << 7))); - emit_insn (gen_selb (insn, insnc, rotl, mask)); - - mem = adjust_address (m_tramp, V4SImode, 0); - emit_move_insn (mem, insn); - - emit_move_insn (bi, GEN_INT (0x35000000 + (79 << 7))); - mem = adjust_address (m_tramp, Pmode, 16); - emit_move_insn (mem, bi); - } - else - { - rtx scxt = gen_reg_rtx (SImode); - rtx sfnaddr = gen_reg_rtx (SImode); - static unsigned char const insna[16] = { - 0x42, 0, 0, STATIC_CHAIN_REGNUM, - 0x30, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0 - }; - - shufc = gen_reg_rtx (TImode); - insnc = force_reg (V4SImode, array_to_constant (V4SImode, insna)); - - /* By or'ing all of cxt with the ila opcode we are assuming cxt - fits 18 bits and the last 4 are zeros. This will be true if - the stack pointer is initialized to 0x3fff0 at program start, - otherwise the ila instruction will be garbage. */ - - emit_insn (gen_ashlsi3 (scxt, cxt, GEN_INT (7))); - emit_insn (gen_ashlsi3 (sfnaddr, fnaddr, GEN_INT (5))); - emit_insn (gen_cpat - (shufc, stack_pointer_rtx, GEN_INT (4), GEN_INT (4))); - emit_insn (gen_shufb (shuf, sfnaddr, scxt, shufc)); - emit_insn (gen_iorv4si3 (insn, insnc, shuf)); - - mem = adjust_address (m_tramp, V4SImode, 0); - emit_move_insn (mem, insn); - } - emit_insn (gen_sync ()); -} - -static bool -spu_warn_func_return (tree decl) -{ - /* Naked functions are implemented entirely in assembly, including the - return sequence, so suppress warnings about this. */ - return !spu_naked_function_p (decl); -} - -void -spu_expand_sign_extend (rtx ops[]) -{ - unsigned char arr[16]; - rtx pat = gen_reg_rtx (TImode); - rtx sign, c; - int i, last; - last = GET_MODE (ops[0]) == DImode ? 7 : 15; - if (GET_MODE (ops[1]) == QImode) - { - sign = gen_reg_rtx (HImode); - emit_insn (gen_extendqihi2 (sign, ops[1])); - for (i = 0; i < 16; i++) - arr[i] = 0x12; - arr[last] = 0x13; - } - else - { - for (i = 0; i < 16; i++) - arr[i] = 0x10; - switch (GET_MODE (ops[1])) - { - case E_HImode: - sign = gen_reg_rtx (SImode); - emit_insn (gen_extendhisi2 (sign, ops[1])); - arr[last] = 0x03; - arr[last - 1] = 0x02; - break; - case E_SImode: - sign = gen_reg_rtx (SImode); - emit_insn (gen_ashrsi3 (sign, ops[1], GEN_INT (31))); - for (i = 0; i < 4; i++) - arr[last - i] = 3 - i; - break; - case E_DImode: - sign = gen_reg_rtx (SImode); - c = gen_reg_rtx (SImode); - emit_insn (gen_spu_convert (c, ops[1])); - emit_insn (gen_ashrsi3 (sign, c, GEN_INT (31))); - for (i = 0; i < 8; i++) - arr[last - i] = 7 - i; - break; - default: - abort (); - } - } - emit_move_insn (pat, array_to_constant (TImode, arr)); - emit_insn (gen_shufb (ops[0], ops[1], sign, pat)); -} - -/* expand vector initialization. If there are any constant parts, - load constant parts first. Then load any non-constant parts. */ -void -spu_expand_vector_init (rtx target, rtx vals) -{ - machine_mode mode = GET_MODE (target); - int n_elts = GET_MODE_NUNITS (mode); - int n_var = 0; - bool all_same = true; - rtx first, x = NULL_RTX, first_constant = NULL_RTX; - int i; - - first = XVECEXP (vals, 0, 0); - for (i = 0; i < n_elts; ++i) - { - x = XVECEXP (vals, 0, i); - if (!(CONST_INT_P (x) - || GET_CODE (x) == CONST_DOUBLE - || GET_CODE (x) == CONST_FIXED)) - ++n_var; - else - { - if (first_constant == NULL_RTX) - first_constant = x; - } - if (i > 0 && !rtx_equal_p (x, first)) - all_same = false; - } - - /* if all elements are the same, use splats to repeat elements */ - if (all_same) - { - if (!CONSTANT_P (first) - && !register_operand (first, GET_MODE (x))) - first = force_reg (GET_MODE (first), first); - emit_insn (gen_spu_splats (target, first)); - return; - } - - /* load constant parts */ - if (n_var != n_elts) - { - if (n_var == 0) - { - emit_move_insn (target, - gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0))); - } - else - { - rtx constant_parts_rtx = copy_rtx (vals); - - gcc_assert (first_constant != NULL_RTX); - /* fill empty slots with the first constant, this increases - our chance of using splats in the recursive call below. */ - for (i = 0; i < n_elts; ++i) - { - x = XVECEXP (constant_parts_rtx, 0, i); - if (!(CONST_INT_P (x) - || GET_CODE (x) == CONST_DOUBLE - || GET_CODE (x) == CONST_FIXED)) - XVECEXP (constant_parts_rtx, 0, i) = first_constant; - } - - spu_expand_vector_init (target, constant_parts_rtx); - } - } - - /* load variable parts */ - if (n_var != 0) - { - rtx insert_operands[4]; - - insert_operands[0] = target; - insert_operands[2] = target; - for (i = 0; i < n_elts; ++i) - { - x = XVECEXP (vals, 0, i); - if (!(CONST_INT_P (x) - || GET_CODE (x) == CONST_DOUBLE - || GET_CODE (x) == CONST_FIXED)) - { - if (!register_operand (x, GET_MODE (x))) - x = force_reg (GET_MODE (x), x); - insert_operands[1] = x; - insert_operands[3] = GEN_INT (i); - spu_builtin_insert (insert_operands); - } - } - } -} - -/* Return insn index for the vector compare instruction for given CODE, - and DEST_MODE, OP_MODE. Return -1 if valid insn is not available. */ - -static int -get_vec_cmp_insn (enum rtx_code code, - machine_mode dest_mode, - machine_mode op_mode) - -{ - switch (code) - { - case EQ: - if (dest_mode == V16QImode && op_mode == V16QImode) - return CODE_FOR_ceq_v16qi; - if (dest_mode == V8HImode && op_mode == V8HImode) - return CODE_FOR_ceq_v8hi; - if (dest_mode == V4SImode && op_mode == V4SImode) - return CODE_FOR_ceq_v4si; - if (dest_mode == V4SImode && op_mode == V4SFmode) - return CODE_FOR_ceq_v4sf; - if (dest_mode == V2DImode && op_mode == V2DFmode) - return CODE_FOR_ceq_v2df; - break; - case GT: - if (dest_mode == V16QImode && op_mode == V16QImode) - return CODE_FOR_cgt_v16qi; - if (dest_mode == V8HImode && op_mode == V8HImode) - return CODE_FOR_cgt_v8hi; - if (dest_mode == V4SImode && op_mode == V4SImode) - return CODE_FOR_cgt_v4si; - if (dest_mode == V4SImode && op_mode == V4SFmode) - return CODE_FOR_cgt_v4sf; - if (dest_mode == V2DImode && op_mode == V2DFmode) - return CODE_FOR_cgt_v2df; - break; - case GTU: - if (dest_mode == V16QImode && op_mode == V16QImode) - return CODE_FOR_clgt_v16qi; - if (dest_mode == V8HImode && op_mode == V8HImode) - return CODE_FOR_clgt_v8hi; - if (dest_mode == V4SImode && op_mode == V4SImode) - return CODE_FOR_clgt_v4si; - break; - default: - break; - } - return -1; -} - -/* Emit vector compare for operands OP0 and OP1 using code RCODE. - DMODE is expected destination mode. This is a recursive function. */ - -static rtx -spu_emit_vector_compare (enum rtx_code rcode, - rtx op0, rtx op1, - machine_mode dmode) -{ - int vec_cmp_insn; - rtx mask; - machine_mode dest_mode; - machine_mode op_mode = GET_MODE (op1); - - gcc_assert (GET_MODE (op0) == GET_MODE (op1)); - - /* Floating point vector compare instructions uses destination V4SImode. - Double floating point vector compare instructions uses destination V2DImode. - Move destination to appropriate mode later. */ - if (dmode == V4SFmode) - dest_mode = V4SImode; - else if (dmode == V2DFmode) - dest_mode = V2DImode; - else - dest_mode = dmode; - - mask = gen_reg_rtx (dest_mode); - vec_cmp_insn = get_vec_cmp_insn (rcode, dest_mode, op_mode); - - if (vec_cmp_insn == -1) - { - bool swap_operands = false; - bool try_again = false; - switch (rcode) - { - case LT: - rcode = GT; - swap_operands = true; - try_again = true; - break; - case LTU: - rcode = GTU; - swap_operands = true; - try_again = true; - break; - case NE: - case UNEQ: - case UNLE: - case UNLT: - case UNGE: - case UNGT: - case UNORDERED: - /* Treat A != B as ~(A==B). */ - { - enum rtx_code rev_code; - enum insn_code nor_code; - rtx rev_mask; - - rev_code = reverse_condition_maybe_unordered (rcode); - rev_mask = spu_emit_vector_compare (rev_code, op0, op1, dest_mode); - - nor_code = optab_handler (one_cmpl_optab, dest_mode); - gcc_assert (nor_code != CODE_FOR_nothing); - emit_insn (GEN_FCN (nor_code) (mask, rev_mask)); - if (dmode != dest_mode) - { - rtx temp = gen_reg_rtx (dest_mode); - convert_move (temp, mask, 0); - return temp; - } - return mask; - } - break; - case GE: - case GEU: - case LE: - case LEU: - /* Try GT/GTU/LT/LTU OR EQ */ - { - rtx c_rtx, eq_rtx; - enum insn_code ior_code; - enum rtx_code new_code; - - switch (rcode) - { - case GE: new_code = GT; break; - case GEU: new_code = GTU; break; - case LE: new_code = LT; break; - case LEU: new_code = LTU; break; - default: - gcc_unreachable (); - } - - c_rtx = spu_emit_vector_compare (new_code, op0, op1, dest_mode); - eq_rtx = spu_emit_vector_compare (EQ, op0, op1, dest_mode); - - ior_code = optab_handler (ior_optab, dest_mode); - gcc_assert (ior_code != CODE_FOR_nothing); - emit_insn (GEN_FCN (ior_code) (mask, c_rtx, eq_rtx)); - if (dmode != dest_mode) - { - rtx temp = gen_reg_rtx (dest_mode); - convert_move (temp, mask, 0); - return temp; - } - return mask; - } - break; - case LTGT: - /* Try LT OR GT */ - { - rtx lt_rtx, gt_rtx; - enum insn_code ior_code; - - lt_rtx = spu_emit_vector_compare (LT, op0, op1, dest_mode); - gt_rtx = spu_emit_vector_compare (GT, op0, op1, dest_mode); - - ior_code = optab_handler (ior_optab, dest_mode); - gcc_assert (ior_code != CODE_FOR_nothing); - emit_insn (GEN_FCN (ior_code) (mask, lt_rtx, gt_rtx)); - if (dmode != dest_mode) - { - rtx temp = gen_reg_rtx (dest_mode); - convert_move (temp, mask, 0); - return temp; - } - return mask; - } - break; - case ORDERED: - /* Implement as (A==A) & (B==B) */ - { - rtx a_rtx, b_rtx; - enum insn_code and_code; - - a_rtx = spu_emit_vector_compare (EQ, op0, op0, dest_mode); - b_rtx = spu_emit_vector_compare (EQ, op1, op1, dest_mode); - - and_code = optab_handler (and_optab, dest_mode); - gcc_assert (and_code != CODE_FOR_nothing); - emit_insn (GEN_FCN (and_code) (mask, a_rtx, b_rtx)); - if (dmode != dest_mode) - { - rtx temp = gen_reg_rtx (dest_mode); - convert_move (temp, mask, 0); - return temp; - } - return mask; - } - break; - default: - gcc_unreachable (); - } - - /* You only get two chances. */ - if (try_again) - vec_cmp_insn = get_vec_cmp_insn (rcode, dest_mode, op_mode); - - gcc_assert (vec_cmp_insn != -1); - - if (swap_operands) - { - rtx tmp; - tmp = op0; - op0 = op1; - op1 = tmp; - } - } - - emit_insn (GEN_FCN (vec_cmp_insn) (mask, op0, op1)); - if (dmode != dest_mode) - { - rtx temp = gen_reg_rtx (dest_mode); - convert_move (temp, mask, 0); - return temp; - } - return mask; -} - - -/* Emit vector conditional expression. - DEST is destination. OP1 and OP2 are two VEC_COND_EXPR operands. - CC_OP0 and CC_OP1 are the two operands for the relation operation COND. */ - -int -spu_emit_vector_cond_expr (rtx dest, rtx op1, rtx op2, - rtx cond, rtx cc_op0, rtx cc_op1) -{ - machine_mode dest_mode = GET_MODE (dest); - enum rtx_code rcode = GET_CODE (cond); - rtx mask; - - /* Get the vector mask for the given relational operations. */ - mask = spu_emit_vector_compare (rcode, cc_op0, cc_op1, dest_mode); - - emit_insn(gen_selb (dest, op2, op1, mask)); - - return 1; -} - -static rtx -spu_force_reg (machine_mode mode, rtx op) -{ - rtx x, r; - if (GET_MODE (op) == VOIDmode || GET_MODE (op) == BLKmode) - { - if ((SCALAR_INT_MODE_P (mode) && GET_CODE (op) == CONST_INT) - || GET_MODE (op) == BLKmode) - return force_reg (mode, convert_to_mode (mode, op, 0)); - abort (); - } - - r = force_reg (GET_MODE (op), op); - if (GET_MODE_SIZE (GET_MODE (op)) == GET_MODE_SIZE (mode)) - { - x = simplify_gen_subreg (mode, r, GET_MODE (op), 0); - if (x) - return x; - } - - x = gen_reg_rtx (mode); - emit_insn (gen_spu_convert (x, r)); - return x; -} - -static void -spu_check_builtin_parm (struct spu_builtin_description *d, rtx op, int p) -{ - HOST_WIDE_INT v = 0; - int lsbits; - /* Check the range of immediate operands. */ - if (p >= SPU_BTI_7 && p <= SPU_BTI_U18) - { - int range = p - SPU_BTI_7; - - if (!CONSTANT_P (op)) - error ("%s expects an integer literal in the range [%d, %d]", - d->name, - spu_builtin_range[range].low, spu_builtin_range[range].high); - - if (GET_CODE (op) == CONST - && (GET_CODE (XEXP (op, 0)) == PLUS - || GET_CODE (XEXP (op, 0)) == MINUS)) - { - v = INTVAL (XEXP (XEXP (op, 0), 1)); - op = XEXP (XEXP (op, 0), 0); - } - else if (GET_CODE (op) == CONST_INT) - v = INTVAL (op); - else if (GET_CODE (op) == CONST_VECTOR - && GET_CODE (CONST_VECTOR_ELT (op, 0)) == CONST_INT) - v = INTVAL (CONST_VECTOR_ELT (op, 0)); - - /* The default for v is 0 which is valid in every range. */ - if (v < spu_builtin_range[range].low - || v > spu_builtin_range[range].high) - error ("%s expects an integer literal in the range [%d, %d]. (%wd)", - d->name, - spu_builtin_range[range].low, spu_builtin_range[range].high, - v); - - switch (p) - { - case SPU_BTI_S10_4: - lsbits = 4; - break; - case SPU_BTI_U16_2: - /* This is only used in lqa, and stqa. Even though the insns - encode 16 bits of the address (all but the 2 least - significant), only 14 bits are used because it is masked to - be 16 byte aligned. */ - lsbits = 4; - break; - case SPU_BTI_S16_2: - /* This is used for lqr and stqr. */ - lsbits = 2; - break; - default: - lsbits = 0; - } - - if (GET_CODE (op) == LABEL_REF - || (GET_CODE (op) == SYMBOL_REF - && SYMBOL_REF_FUNCTION_P (op)) - || (v & ((1 << lsbits) - 1)) != 0) - warning (0, "%d least significant bits of %s are ignored", lsbits, - d->name); - } -} - - -static int -expand_builtin_args (struct spu_builtin_description *d, tree exp, - rtx target, rtx ops[]) -{ - enum insn_code icode = (enum insn_code) d->icode; - int i = 0, a; - - /* Expand the arguments into rtl. */ - - if (d->parm[0] != SPU_BTI_VOID) - ops[i++] = target; - - for (a = 0; d->parm[a+1] != SPU_BTI_END_OF_PARAMS; i++, a++) - { - tree arg = CALL_EXPR_ARG (exp, a); - if (arg == 0) - abort (); - ops[i] = expand_expr (arg, NULL_RTX, VOIDmode, EXPAND_NORMAL); - } - - gcc_assert (i == insn_data[icode].n_generator_args); - return i; -} - -static rtx -spu_expand_builtin_1 (struct spu_builtin_description *d, - tree exp, rtx target) -{ - rtx pat; - rtx ops[8]; - enum insn_code icode = (enum insn_code) d->icode; - machine_mode mode, tmode; - int i, p; - int n_operands; - tree return_type; - - /* Set up ops[] with values from arglist. */ - n_operands = expand_builtin_args (d, exp, target, ops); - - /* Handle the target operand which must be operand 0. */ - i = 0; - if (d->parm[0] != SPU_BTI_VOID) - { - - /* We prefer the mode specified for the match_operand otherwise - use the mode from the builtin function prototype. */ - tmode = insn_data[d->icode].operand[0].mode; - if (tmode == VOIDmode) - tmode = TYPE_MODE (spu_builtin_types[d->parm[0]]); - - /* Try to use target because not using it can lead to extra copies - and when we are using all of the registers extra copies leads - to extra spills. */ - if (target && GET_CODE (target) == REG && GET_MODE (target) == tmode) - ops[0] = target; - else - target = ops[0] = gen_reg_rtx (tmode); - - if (!(*insn_data[icode].operand[0].predicate) (ops[0], tmode)) - abort (); - - i++; - } - - if (d->fcode == SPU_MASK_FOR_LOAD) - { - machine_mode mode = insn_data[icode].operand[1].mode; - tree arg; - rtx addr, op, pat; - - /* get addr */ - arg = CALL_EXPR_ARG (exp, 0); - gcc_assert (POINTER_TYPE_P (TREE_TYPE (arg))); - op = expand_expr (arg, NULL_RTX, Pmode, EXPAND_NORMAL); - addr = memory_address (mode, op); - - /* negate addr */ - op = gen_reg_rtx (GET_MODE (addr)); - emit_insn (gen_rtx_SET (op, gen_rtx_NEG (GET_MODE (addr), addr))); - op = gen_rtx_MEM (mode, op); - - pat = GEN_FCN (icode) (target, op); - if (!pat) - return 0; - emit_insn (pat); - return target; - } - - /* Ignore align_hint, but still expand it's args in case they have - side effects. */ - if (icode == CODE_FOR_spu_align_hint) - return 0; - - /* Handle the rest of the operands. */ - for (p = 1; i < n_operands; i++, p++) - { - if (insn_data[d->icode].operand[i].mode != VOIDmode) - mode = insn_data[d->icode].operand[i].mode; - else - mode = TYPE_MODE (spu_builtin_types[d->parm[i]]); - - /* mode can be VOIDmode here for labels */ - - /* For specific intrinsics with an immediate operand, e.g., - si_ai(), we sometimes need to convert the scalar argument to a - vector argument by splatting the scalar. */ - if (VECTOR_MODE_P (mode) - && (GET_CODE (ops[i]) == CONST_INT - || GET_MODE_CLASS (GET_MODE (ops[i])) == MODE_INT - || GET_MODE_CLASS (GET_MODE (ops[i])) == MODE_FLOAT)) - { - if (GET_CODE (ops[i]) == CONST_INT) - ops[i] = spu_const (mode, INTVAL (ops[i])); - else - { - rtx reg = gen_reg_rtx (mode); - machine_mode imode = GET_MODE_INNER (mode); - if (!spu_nonmem_operand (ops[i], GET_MODE (ops[i]))) - ops[i] = force_reg (GET_MODE (ops[i]), ops[i]); - if (imode != GET_MODE (ops[i])) - ops[i] = convert_to_mode (imode, ops[i], - TYPE_UNSIGNED (spu_builtin_types - [d->parm[i]])); - emit_insn (gen_spu_splats (reg, ops[i])); - ops[i] = reg; - } - } - - spu_check_builtin_parm (d, ops[i], d->parm[p]); - - if (!(*insn_data[icode].operand[i].predicate) (ops[i], mode)) - ops[i] = spu_force_reg (mode, ops[i]); - } - - switch (n_operands) - { - case 0: - pat = GEN_FCN (icode) (0); - break; - case 1: - pat = GEN_FCN (icode) (ops[0]); - break; - case 2: - pat = GEN_FCN (icode) (ops[0], ops[1]); - break; - case 3: - pat = GEN_FCN (icode) (ops[0], ops[1], ops[2]); - break; - case 4: - pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3]); - break; - case 5: - pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3], ops[4]); - break; - case 6: - pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3], ops[4], ops[5]); - break; - default: - abort (); - } - - if (!pat) - abort (); - - if (d->type == B_CALL || d->type == B_BISLED) - emit_call_insn (pat); - else if (d->type == B_JUMP) - { - emit_jump_insn (pat); - emit_barrier (); - } - else - emit_insn (pat); - - return_type = spu_builtin_types[d->parm[0]]; - if (d->parm[0] != SPU_BTI_VOID - && GET_MODE (target) != TYPE_MODE (return_type)) - { - /* target is the return value. It should always be the mode of - the builtin function prototype. */ - target = spu_force_reg (TYPE_MODE (return_type), target); - } - - return target; -} - -rtx -spu_expand_builtin (tree exp, - rtx target, - rtx subtarget ATTRIBUTE_UNUSED, - machine_mode mode ATTRIBUTE_UNUSED, - int ignore ATTRIBUTE_UNUSED) -{ - tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); - unsigned int fcode = DECL_MD_FUNCTION_CODE (fndecl); - struct spu_builtin_description *d; - - if (fcode < NUM_SPU_BUILTINS) - { - d = &spu_builtins[fcode]; - - return spu_expand_builtin_1 (d, exp, target); - } - abort (); -} - -/* Implement targetm.vectorize.builtin_mask_for_load. */ -static tree -spu_builtin_mask_for_load (void) -{ - return spu_builtin_decls[SPU_MASK_FOR_LOAD]; -} - -/* Implement targetm.vectorize.builtin_vectorization_cost. */ -static int -spu_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost, - tree vectype, - int misalign ATTRIBUTE_UNUSED) -{ - unsigned elements; - - switch (type_of_cost) - { - case scalar_stmt: - case vector_stmt: - case vector_load: - case vector_store: - case vec_to_scalar: - case scalar_to_vec: - case cond_branch_not_taken: - case vec_perm: - case vec_promote_demote: - return 1; - - case scalar_store: - return 10; - - case scalar_load: - /* Load + rotate. */ - return 2; - - case unaligned_load: - case vector_gather_load: - case vector_scatter_store: - return 2; - - case cond_branch_taken: - return 6; - - case vec_construct: - elements = TYPE_VECTOR_SUBPARTS (vectype); - return elements / 2 + 1; - - default: - gcc_unreachable (); - } -} - -/* Implement targetm.vectorize.init_cost. */ - -static void * -spu_init_cost (struct loop *loop_info ATTRIBUTE_UNUSED) -{ - unsigned *cost = XNEWVEC (unsigned, 3); - cost[vect_prologue] = cost[vect_body] = cost[vect_epilogue] = 0; - return cost; -} - -/* Implement targetm.vectorize.add_stmt_cost. */ - -static unsigned -spu_add_stmt_cost (void *data, int count, enum vect_cost_for_stmt kind, - struct _stmt_vec_info *stmt_info, int misalign, - enum vect_cost_model_location where) -{ - unsigned *cost = (unsigned *) data; - unsigned retval = 0; - - if (flag_vect_cost_model) - { - tree vectype = stmt_info ? stmt_vectype (stmt_info) : NULL_TREE; - int stmt_cost = spu_builtin_vectorization_cost (kind, vectype, misalign); - - /* Statements in an inner loop relative to the loop being - vectorized are weighted more heavily. The value here is - arbitrary and could potentially be improved with analysis. */ - if (where == vect_body && stmt_info && stmt_in_inner_loop_p (stmt_info)) - count *= 50; /* FIXME. */ - - retval = (unsigned) (count * stmt_cost); - cost[where] += retval; - } - - return retval; -} - -/* Implement targetm.vectorize.finish_cost. */ - -static void -spu_finish_cost (void *data, unsigned *prologue_cost, - unsigned *body_cost, unsigned *epilogue_cost) -{ - unsigned *cost = (unsigned *) data; - *prologue_cost = cost[vect_prologue]; - *body_cost = cost[vect_body]; - *epilogue_cost = cost[vect_epilogue]; -} - -/* Implement targetm.vectorize.destroy_cost_data. */ - -static void -spu_destroy_cost_data (void *data) -{ - free (data); -} - -/* Return true iff, data reference of TYPE can reach vector alignment (16) - after applying N number of iterations. This routine does not determine - how may iterations are required to reach desired alignment. */ - -static bool -spu_vector_alignment_reachable (const_tree type ATTRIBUTE_UNUSED, bool is_packed) -{ - if (is_packed) - return false; - - /* All other types are naturally aligned. */ - return true; -} - -/* Return the appropriate mode for a named address pointer. */ -static scalar_int_mode -spu_addr_space_pointer_mode (addr_space_t addrspace) -{ - switch (addrspace) - { - case ADDR_SPACE_GENERIC: - return ptr_mode; - case ADDR_SPACE_EA: - return EAmode; - default: - gcc_unreachable (); - } -} - -/* Return the appropriate mode for a named address address. */ -static scalar_int_mode -spu_addr_space_address_mode (addr_space_t addrspace) -{ - switch (addrspace) - { - case ADDR_SPACE_GENERIC: - return Pmode; - case ADDR_SPACE_EA: - return EAmode; - default: - gcc_unreachable (); - } -} - -/* Determine if one named address space is a subset of another. */ - -static bool -spu_addr_space_subset_p (addr_space_t subset, addr_space_t superset) -{ - gcc_assert (subset == ADDR_SPACE_GENERIC || subset == ADDR_SPACE_EA); - gcc_assert (superset == ADDR_SPACE_GENERIC || superset == ADDR_SPACE_EA); - - if (subset == superset) - return true; - - /* If we have -mno-address-space-conversion, treat __ea and generic as not - being subsets but instead as disjoint address spaces. */ - else if (!TARGET_ADDRESS_SPACE_CONVERSION) - return false; - - else - return (subset == ADDR_SPACE_GENERIC && superset == ADDR_SPACE_EA); -} - -/* Convert from one address space to another. */ -static rtx -spu_addr_space_convert (rtx op, tree from_type, tree to_type) -{ - addr_space_t from_as = TYPE_ADDR_SPACE (TREE_TYPE (from_type)); - addr_space_t to_as = TYPE_ADDR_SPACE (TREE_TYPE (to_type)); - - gcc_assert (from_as == ADDR_SPACE_GENERIC || from_as == ADDR_SPACE_EA); - gcc_assert (to_as == ADDR_SPACE_GENERIC || to_as == ADDR_SPACE_EA); - - if (to_as == ADDR_SPACE_GENERIC && from_as == ADDR_SPACE_EA) - { - rtx result, ls; - - ls = gen_const_mem (DImode, - gen_rtx_SYMBOL_REF (Pmode, "__ea_local_store")); - set_mem_align (ls, 128); - - result = gen_reg_rtx (Pmode); - ls = force_reg (Pmode, convert_modes (Pmode, DImode, ls, 1)); - op = force_reg (Pmode, convert_modes (Pmode, EAmode, op, 1)); - ls = emit_conditional_move (ls, NE, op, const0_rtx, Pmode, - ls, const0_rtx, Pmode, 1); - - emit_insn (gen_subsi3 (result, op, ls)); - - return result; - } - - else if (to_as == ADDR_SPACE_EA && from_as == ADDR_SPACE_GENERIC) - { - rtx result, ls; - - ls = gen_const_mem (DImode, - gen_rtx_SYMBOL_REF (Pmode, "__ea_local_store")); - set_mem_align (ls, 128); - - result = gen_reg_rtx (EAmode); - ls = force_reg (EAmode, convert_modes (EAmode, DImode, ls, 1)); - op = force_reg (Pmode, op); - ls = emit_conditional_move (ls, NE, op, const0_rtx, Pmode, - ls, const0_rtx, EAmode, 1); - op = force_reg (EAmode, convert_modes (EAmode, Pmode, op, 1)); - - if (EAmode == SImode) - emit_insn (gen_addsi3 (result, op, ls)); - else - emit_insn (gen_adddi3 (result, op, ls)); - - return result; - } - - else - gcc_unreachable (); -} - - -/* Count the total number of instructions in each pipe and return the - maximum, which is used as the Minimum Iteration Interval (MII) - in the modulo scheduler. get_pipe() will return -2, -1, 0, or 1. - -2 are instructions that can go in pipe0 or pipe1. */ -static int -spu_sms_res_mii (struct ddg *g) -{ - int i; - unsigned t[4] = {0, 0, 0, 0}; - - for (i = 0; i < g->num_nodes; i++) - { - rtx_insn *insn = g->nodes[i].insn; - int p = get_pipe (insn) + 2; - - gcc_assert (p >= 0); - gcc_assert (p < 4); - - t[p]++; - if (dump_file && INSN_P (insn)) - fprintf (dump_file, "i%d %s %d %d\n", - INSN_UID (insn), - insn_data[INSN_CODE(insn)].name, - p, t[p]); - } - if (dump_file) - fprintf (dump_file, "%d %d %d %d\n", t[0], t[1], t[2], t[3]); - - return MAX ((t[0] + t[2] + t[3] + 1) / 2, MAX (t[2], t[3])); -} - - -void -spu_init_expanders (void) -{ - if (cfun) - { - rtx r0, r1; - /* HARD_FRAME_REGISTER is only 128 bit aligned when - frame_pointer_needed is true. We don't know that until we're - expanding the prologue. */ - REGNO_POINTER_ALIGN (HARD_FRAME_POINTER_REGNUM) = 8; - - /* A number of passes use LAST_VIRTUAL_REGISTER+1 and - LAST_VIRTUAL_REGISTER+2 to test the back-end. We want them - to be treated as aligned, so generate them here. */ - r0 = gen_reg_rtx (SImode); - r1 = gen_reg_rtx (SImode); - mark_reg_pointer (r0, 128); - mark_reg_pointer (r1, 128); - gcc_assert (REGNO (r0) == LAST_VIRTUAL_REGISTER + 1 - && REGNO (r1) == LAST_VIRTUAL_REGISTER + 2); - } -} - -static scalar_int_mode -spu_libgcc_cmp_return_mode (void) -{ - -/* For SPU word mode is TI mode so it is better to use SImode - for compare returns. */ - return SImode; -} - -static scalar_int_mode -spu_libgcc_shift_count_mode (void) -{ -/* For SPU word mode is TI mode so it is better to use SImode - for shift counts. */ - return SImode; -} - -/* Implement targetm.section_type_flags. */ -static unsigned int -spu_section_type_flags (tree decl, const char *name, int reloc) -{ - /* .toe needs to have type @nobits. */ - if (strcmp (name, ".toe") == 0) - return SECTION_BSS; - /* Don't load _ea into the current address space. */ - if (strcmp (name, "._ea") == 0) - return SECTION_WRITE | SECTION_DEBUG; - return default_section_type_flags (decl, name, reloc); -} - -/* Implement targetm.select_section. */ -static section * -spu_select_section (tree decl, int reloc, unsigned HOST_WIDE_INT align) -{ - /* Variables and constants defined in the __ea address space - go into a special section named "._ea". */ - if (TREE_TYPE (decl) != error_mark_node - && TYPE_ADDR_SPACE (TREE_TYPE (decl)) == ADDR_SPACE_EA) - { - /* We might get called with string constants, but get_named_section - doesn't like them as they are not DECLs. Also, we need to set - flags in that case. */ - if (!DECL_P (decl)) - return get_section ("._ea", SECTION_WRITE | SECTION_DEBUG, NULL); - - return get_named_section (decl, "._ea", reloc); - } - - return default_elf_select_section (decl, reloc, align); -} - -/* Implement targetm.unique_section. */ -static void -spu_unique_section (tree decl, int reloc) -{ - /* We don't support unique section names in the __ea address - space for now. */ - if (TREE_TYPE (decl) != error_mark_node - && TYPE_ADDR_SPACE (TREE_TYPE (decl)) != 0) - return; - - default_unique_section (decl, reloc); -} - -/* Generate a constant or register which contains 2^SCALE. We assume - the result is valid for MODE. Currently, MODE must be V4SFmode and - SCALE must be SImode. */ -rtx -spu_gen_exp2 (machine_mode mode, rtx scale) -{ - gcc_assert (mode == V4SFmode); - gcc_assert (GET_MODE (scale) == SImode || GET_CODE (scale) == CONST_INT); - if (GET_CODE (scale) != CONST_INT) - { - /* unsigned int exp = (127 + scale) << 23; - __vector float m = (__vector float) spu_splats (exp); */ - rtx reg = force_reg (SImode, scale); - rtx exp = gen_reg_rtx (SImode); - rtx mul = gen_reg_rtx (mode); - emit_insn (gen_addsi3 (exp, reg, GEN_INT (127))); - emit_insn (gen_ashlsi3 (exp, exp, GEN_INT (23))); - emit_insn (gen_spu_splats (mul, gen_rtx_SUBREG (GET_MODE_INNER (mode), exp, 0))); - return mul; - } - else - { - HOST_WIDE_INT exp = 127 + INTVAL (scale); - unsigned char arr[16]; - arr[0] = arr[4] = arr[8] = arr[12] = exp >> 1; - arr[1] = arr[5] = arr[9] = arr[13] = exp << 7; - arr[2] = arr[6] = arr[10] = arr[14] = 0; - arr[3] = arr[7] = arr[11] = arr[15] = 0; - return array_to_constant (mode, arr); - } -} - -/* After reload, just change the convert into a move instruction - or a dead instruction. */ -void -spu_split_convert (rtx ops[]) -{ - if (REGNO (ops[0]) == REGNO (ops[1])) - emit_note (NOTE_INSN_DELETED); - else - { - /* Use TImode always as this might help hard reg copyprop. */ - rtx op0 = gen_rtx_REG (TImode, REGNO (ops[0])); - rtx op1 = gen_rtx_REG (TImode, REGNO (ops[1])); - emit_insn (gen_move_insn (op0, op1)); - } -} - -void -spu_function_profiler (FILE * file, int labelno ATTRIBUTE_UNUSED) -{ - fprintf (file, "# profile\n"); - fprintf (file, "brsl $75, _mcount\n"); -} - -/* Implement targetm.ref_may_alias_errno. */ -static bool -spu_ref_may_alias_errno (ao_ref *ref) -{ - tree base = ao_ref_base (ref); - - /* With SPU newlib, errno is defined as something like - _impure_data._errno - The default implementation of this target macro does not - recognize such expressions, so special-code for it here. */ - - if (TREE_CODE (base) == VAR_DECL - && !TREE_STATIC (base) - && DECL_EXTERNAL (base) - && TREE_CODE (TREE_TYPE (base)) == RECORD_TYPE - && strcmp (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (base)), - "_impure_data") == 0 - /* _errno is the first member of _impure_data. */ - && ref->offset == 0) - return true; - - return default_ref_may_alias_errno (ref); -} - -/* Output thunk to FILE that implements a C++ virtual function call (with - multiple inheritance) to FUNCTION. The thunk adjusts the this pointer - by DELTA, and unless VCALL_OFFSET is zero, applies an additional adjustment - stored at VCALL_OFFSET in the vtable whose address is located at offset 0 - relative to the resulting this pointer. */ - -static void -spu_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED, - HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, - tree function) -{ - const char *fnname = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (thunk)); - rtx op[8]; - - assemble_start_function (thunk, fnname); - /* Make sure unwind info is emitted for the thunk if needed. */ - final_start_function (emit_barrier (), file, 1); - - /* Operand 0 is the target function. */ - op[0] = XEXP (DECL_RTL (function), 0); - - /* Operand 1 is the 'this' pointer. */ - if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function)) - op[1] = gen_rtx_REG (Pmode, FIRST_ARG_REGNUM + 1); - else - op[1] = gen_rtx_REG (Pmode, FIRST_ARG_REGNUM); - - /* Operands 2/3 are the low/high halfwords of delta. */ - op[2] = GEN_INT (trunc_int_for_mode (delta, HImode)); - op[3] = GEN_INT (trunc_int_for_mode (delta >> 16, HImode)); - - /* Operands 4/5 are the low/high halfwords of vcall_offset. */ - op[4] = GEN_INT (trunc_int_for_mode (vcall_offset, HImode)); - op[5] = GEN_INT (trunc_int_for_mode (vcall_offset >> 16, HImode)); - - /* Operands 6/7 are temporary registers. */ - op[6] = gen_rtx_REG (Pmode, 79); - op[7] = gen_rtx_REG (Pmode, 78); - - /* Add DELTA to this pointer. */ - if (delta) - { - if (delta >= -0x200 && delta < 0x200) - output_asm_insn ("ai\t%1,%1,%2", op); - else if (delta >= -0x8000 && delta < 0x8000) - { - output_asm_insn ("il\t%6,%2", op); - output_asm_insn ("a\t%1,%1,%6", op); - } - else - { - output_asm_insn ("ilhu\t%6,%3", op); - output_asm_insn ("iohl\t%6,%2", op); - output_asm_insn ("a\t%1,%1,%6", op); - } - } - - /* Perform vcall adjustment. */ - if (vcall_offset) - { - output_asm_insn ("lqd\t%7,0(%1)", op); - output_asm_insn ("rotqby\t%7,%7,%1", op); - - if (vcall_offset >= -0x200 && vcall_offset < 0x200) - output_asm_insn ("ai\t%7,%7,%4", op); - else if (vcall_offset >= -0x8000 && vcall_offset < 0x8000) - { - output_asm_insn ("il\t%6,%4", op); - output_asm_insn ("a\t%7,%7,%6", op); - } - else - { - output_asm_insn ("ilhu\t%6,%5", op); - output_asm_insn ("iohl\t%6,%4", op); - output_asm_insn ("a\t%7,%7,%6", op); - } - - output_asm_insn ("lqd\t%6,0(%7)", op); - output_asm_insn ("rotqby\t%6,%6,%7", op); - output_asm_insn ("a\t%1,%1,%6", op); - } - - /* Jump to target. */ - output_asm_insn ("br\t%0", op); - - final_end_function (); - assemble_end_function (thunk, fnname); -} - -/* Canonicalize a comparison from one we don't have to one we do have. */ -static void -spu_canonicalize_comparison (int *code, rtx *op0, rtx *op1, - bool op0_preserve_value) -{ - if (!op0_preserve_value - && (*code == LE || *code == LT || *code == LEU || *code == LTU)) - { - rtx tem = *op0; - *op0 = *op1; - *op1 = tem; - *code = (int)swap_condition ((enum rtx_code)*code); - } -} - -/* Expand an atomic fetch-and-operate pattern. CODE is the binary operation - to perform. MEM is the memory on which to operate. VAL is the second - operand of the binary operator. BEFORE and AFTER are optional locations to - return the value of MEM either before of after the operation. */ -void -spu_expand_atomic_op (enum rtx_code code, rtx mem, rtx val, - rtx orig_before, rtx orig_after) -{ - machine_mode mode = GET_MODE (mem); - rtx before = orig_before, after = orig_after; - - if (before == NULL_RTX) - before = gen_reg_rtx (mode); - - emit_move_insn (before, mem); - - if (code == MULT) /* NAND operation */ - { - rtx x = expand_simple_binop (mode, AND, before, val, - NULL_RTX, 1, OPTAB_LIB_WIDEN); - after = expand_simple_unop (mode, NOT, x, after, 1); - } - else - { - after = expand_simple_binop (mode, code, before, val, - after, 1, OPTAB_LIB_WIDEN); - } - - emit_move_insn (mem, after); - - if (orig_after && after != orig_after) - emit_move_insn (orig_after, after); -} - -/* Implement TARGET_MODES_TIEABLE_P. */ - -static bool -spu_modes_tieable_p (machine_mode mode1, machine_mode mode2) -{ - return (GET_MODE_BITSIZE (mode1) <= MAX_FIXED_MODE_SIZE - && GET_MODE_BITSIZE (mode2) <= MAX_FIXED_MODE_SIZE); -} - -/* Implement TARGET_CAN_CHANGE_MODE_CLASS. GCC assumes that modes are - in the lowpart of a register, which is only true for SPU. */ - -static bool -spu_can_change_mode_class (machine_mode from, machine_mode to, reg_class_t) -{ - return (GET_MODE_SIZE (from) == GET_MODE_SIZE (to) - || (GET_MODE_SIZE (from) <= 4 && GET_MODE_SIZE (to) <= 4) - || (GET_MODE_SIZE (from) >= 16 && GET_MODE_SIZE (to) >= 16)); -} - -/* Implement TARGET_TRULY_NOOP_TRUNCATION. */ - -static bool -spu_truly_noop_truncation (poly_uint64 outprec, poly_uint64 inprec) -{ - return inprec <= 32 && outprec <= inprec; -} - -/* Implement TARGET_STATIC_RTX_ALIGNMENT. - - Make all static objects 16-byte aligned. This allows us to assume - they are also padded to 16 bytes, which means we can use a single - load or store instruction to access them. */ - -static HOST_WIDE_INT -spu_static_rtx_alignment (machine_mode mode) -{ - return MAX (GET_MODE_ALIGNMENT (mode), 128); -} - -/* Implement TARGET_CONSTANT_ALIGNMENT. - - Make all static objects 16-byte aligned. This allows us to assume - they are also padded to 16 bytes, which means we can use a single - load or store instruction to access them. */ - -static HOST_WIDE_INT -spu_constant_alignment (const_tree, HOST_WIDE_INT align) -{ - return MAX (align, 128); -} - -/* Table of machine attributes. */ -static const struct attribute_spec spu_attribute_table[] = -{ - /* { name, min_len, max_len, decl_req, type_req, fn_type_req, - affects_type_identity, handler, exclude } */ - { "naked", 0, 0, true, false, false, false, - spu_handle_fndecl_attribute, NULL }, - { "spu_vector", 0, 0, false, true, false, false, - spu_handle_vector_attribute, NULL }, - { NULL, 0, 0, false, false, false, false, NULL, NULL } -}; - -/* TARGET overrides. */ - -#undef TARGET_LRA_P -#define TARGET_LRA_P hook_bool_void_false - -#undef TARGET_ADDR_SPACE_POINTER_MODE -#define TARGET_ADDR_SPACE_POINTER_MODE spu_addr_space_pointer_mode - -#undef TARGET_ADDR_SPACE_ADDRESS_MODE -#define TARGET_ADDR_SPACE_ADDRESS_MODE spu_addr_space_address_mode - -#undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P -#define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P \ - spu_addr_space_legitimate_address_p - -#undef TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS -#define TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS spu_addr_space_legitimize_address - -#undef TARGET_ADDR_SPACE_SUBSET_P -#define TARGET_ADDR_SPACE_SUBSET_P spu_addr_space_subset_p - -#undef TARGET_ADDR_SPACE_CONVERT -#define TARGET_ADDR_SPACE_CONVERT spu_addr_space_convert - -#undef TARGET_INIT_BUILTINS -#define TARGET_INIT_BUILTINS spu_init_builtins -#undef TARGET_BUILTIN_DECL -#define TARGET_BUILTIN_DECL spu_builtin_decl - -#undef TARGET_EXPAND_BUILTIN -#define TARGET_EXPAND_BUILTIN spu_expand_builtin - -#undef TARGET_UNWIND_WORD_MODE -#define TARGET_UNWIND_WORD_MODE spu_unwind_word_mode - -#undef TARGET_LEGITIMIZE_ADDRESS -#define TARGET_LEGITIMIZE_ADDRESS spu_legitimize_address - -/* The current assembler doesn't like .4byte foo@ppu, so use the normal .long - and .quad for the debugger. When it is known that the assembler is fixed, - these can be removed. */ -#undef TARGET_ASM_UNALIGNED_SI_OP -#define TARGET_ASM_UNALIGNED_SI_OP "\t.long\t" - -#undef TARGET_ASM_ALIGNED_DI_OP -#define TARGET_ASM_ALIGNED_DI_OP "\t.quad\t" - -/* The .8byte directive doesn't seem to work well for a 32 bit - architecture. */ -#undef TARGET_ASM_UNALIGNED_DI_OP -#define TARGET_ASM_UNALIGNED_DI_OP NULL - -#undef TARGET_RTX_COSTS -#define TARGET_RTX_COSTS spu_rtx_costs - -#undef TARGET_ADDRESS_COST -#define TARGET_ADDRESS_COST hook_int_rtx_mode_as_bool_0 - -#undef TARGET_SCHED_ISSUE_RATE -#define TARGET_SCHED_ISSUE_RATE spu_sched_issue_rate - -#undef TARGET_SCHED_INIT_GLOBAL -#define TARGET_SCHED_INIT_GLOBAL spu_sched_init_global - -#undef TARGET_SCHED_INIT -#define TARGET_SCHED_INIT spu_sched_init - -#undef TARGET_SCHED_VARIABLE_ISSUE -#define TARGET_SCHED_VARIABLE_ISSUE spu_sched_variable_issue - -#undef TARGET_SCHED_REORDER -#define TARGET_SCHED_REORDER spu_sched_reorder - -#undef TARGET_SCHED_REORDER2 -#define TARGET_SCHED_REORDER2 spu_sched_reorder - -#undef TARGET_SCHED_ADJUST_COST -#define TARGET_SCHED_ADJUST_COST spu_sched_adjust_cost - -#undef TARGET_ATTRIBUTE_TABLE -#define TARGET_ATTRIBUTE_TABLE spu_attribute_table - -#undef TARGET_ASM_INTEGER -#define TARGET_ASM_INTEGER spu_assemble_integer - -#undef TARGET_SCALAR_MODE_SUPPORTED_P -#define TARGET_SCALAR_MODE_SUPPORTED_P spu_scalar_mode_supported_p - -#undef TARGET_VECTOR_MODE_SUPPORTED_P -#define TARGET_VECTOR_MODE_SUPPORTED_P spu_vector_mode_supported_p - -#undef TARGET_FUNCTION_OK_FOR_SIBCALL -#define TARGET_FUNCTION_OK_FOR_SIBCALL spu_function_ok_for_sibcall - -#undef TARGET_ASM_GLOBALIZE_LABEL -#define TARGET_ASM_GLOBALIZE_LABEL spu_asm_globalize_label - -#undef TARGET_PASS_BY_REFERENCE -#define TARGET_PASS_BY_REFERENCE spu_pass_by_reference - -#undef TARGET_FUNCTION_ARG -#define TARGET_FUNCTION_ARG spu_function_arg - -#undef TARGET_FUNCTION_ARG_ADVANCE -#define TARGET_FUNCTION_ARG_ADVANCE spu_function_arg_advance - -#undef TARGET_FUNCTION_ARG_OFFSET -#define TARGET_FUNCTION_ARG_OFFSET spu_function_arg_offset - -#undef TARGET_FUNCTION_ARG_PADDING -#define TARGET_FUNCTION_ARG_PADDING spu_function_arg_padding - -#undef TARGET_MUST_PASS_IN_STACK -#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size - -#undef TARGET_BUILD_BUILTIN_VA_LIST -#define TARGET_BUILD_BUILTIN_VA_LIST spu_build_builtin_va_list - -#undef TARGET_EXPAND_BUILTIN_VA_START -#define TARGET_EXPAND_BUILTIN_VA_START spu_va_start - -#undef TARGET_SETUP_INCOMING_VARARGS -#define TARGET_SETUP_INCOMING_VARARGS spu_setup_incoming_varargs - -#undef TARGET_MACHINE_DEPENDENT_REORG -#define TARGET_MACHINE_DEPENDENT_REORG spu_machine_dependent_reorg - -#undef TARGET_GIMPLIFY_VA_ARG_EXPR -#define TARGET_GIMPLIFY_VA_ARG_EXPR spu_gimplify_va_arg_expr - -#undef TARGET_INIT_LIBFUNCS -#define TARGET_INIT_LIBFUNCS spu_init_libfuncs - -#undef TARGET_RETURN_IN_MEMORY -#define TARGET_RETURN_IN_MEMORY spu_return_in_memory - -#undef TARGET_ENCODE_SECTION_INFO -#define TARGET_ENCODE_SECTION_INFO spu_encode_section_info - -#undef TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD -#define TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD spu_builtin_mask_for_load - -#undef TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST -#define TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST spu_builtin_vectorization_cost - -#undef TARGET_VECTORIZE_INIT_COST -#define TARGET_VECTORIZE_INIT_COST spu_init_cost - -#undef TARGET_VECTORIZE_ADD_STMT_COST -#define TARGET_VECTORIZE_ADD_STMT_COST spu_add_stmt_cost - -#undef TARGET_VECTORIZE_FINISH_COST -#define TARGET_VECTORIZE_FINISH_COST spu_finish_cost - -#undef TARGET_VECTORIZE_DESTROY_COST_DATA -#define TARGET_VECTORIZE_DESTROY_COST_DATA spu_destroy_cost_data - -#undef TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE -#define TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE spu_vector_alignment_reachable - -#undef TARGET_LIBGCC_CMP_RETURN_MODE -#define TARGET_LIBGCC_CMP_RETURN_MODE spu_libgcc_cmp_return_mode - -#undef TARGET_LIBGCC_SHIFT_COUNT_MODE -#define TARGET_LIBGCC_SHIFT_COUNT_MODE spu_libgcc_shift_count_mode - -#undef TARGET_SCHED_SMS_RES_MII -#define TARGET_SCHED_SMS_RES_MII spu_sms_res_mii - -#undef TARGET_SECTION_TYPE_FLAGS -#define TARGET_SECTION_TYPE_FLAGS spu_section_type_flags - -#undef TARGET_ASM_SELECT_SECTION -#define TARGET_ASM_SELECT_SECTION spu_select_section - -#undef TARGET_ASM_UNIQUE_SECTION -#define TARGET_ASM_UNIQUE_SECTION spu_unique_section - -#undef TARGET_LEGITIMATE_ADDRESS_P -#define TARGET_LEGITIMATE_ADDRESS_P spu_legitimate_address_p - -#undef TARGET_LEGITIMATE_CONSTANT_P -#define TARGET_LEGITIMATE_CONSTANT_P spu_legitimate_constant_p - -#undef TARGET_TRAMPOLINE_INIT -#define TARGET_TRAMPOLINE_INIT spu_trampoline_init - -#undef TARGET_WARN_FUNC_RETURN -#define TARGET_WARN_FUNC_RETURN spu_warn_func_return - -#undef TARGET_OPTION_OVERRIDE -#define TARGET_OPTION_OVERRIDE spu_option_override - -#undef TARGET_CONDITIONAL_REGISTER_USAGE -#define TARGET_CONDITIONAL_REGISTER_USAGE spu_conditional_register_usage - -#undef TARGET_REF_MAY_ALIAS_ERRNO -#define TARGET_REF_MAY_ALIAS_ERRNO spu_ref_may_alias_errno - -#undef TARGET_ASM_OUTPUT_MI_THUNK -#define TARGET_ASM_OUTPUT_MI_THUNK spu_output_mi_thunk -#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK -#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true - -/* Variable tracking should be run after all optimizations which - change order of insns. It also needs a valid CFG. */ -#undef TARGET_DELAY_VARTRACK -#define TARGET_DELAY_VARTRACK true - -#undef TARGET_CANONICALIZE_COMPARISON -#define TARGET_CANONICALIZE_COMPARISON spu_canonicalize_comparison - -#undef TARGET_CAN_USE_DOLOOP_P -#define TARGET_CAN_USE_DOLOOP_P can_use_doloop_if_innermost - -#undef TARGET_MODES_TIEABLE_P -#define TARGET_MODES_TIEABLE_P spu_modes_tieable_p - -#undef TARGET_HARD_REGNO_NREGS -#define TARGET_HARD_REGNO_NREGS spu_hard_regno_nregs - -#undef TARGET_CAN_CHANGE_MODE_CLASS -#define TARGET_CAN_CHANGE_MODE_CLASS spu_can_change_mode_class - -#undef TARGET_TRULY_NOOP_TRUNCATION -#define TARGET_TRULY_NOOP_TRUNCATION spu_truly_noop_truncation - -#undef TARGET_STATIC_RTX_ALIGNMENT -#define TARGET_STATIC_RTX_ALIGNMENT spu_static_rtx_alignment -#undef TARGET_CONSTANT_ALIGNMENT -#define TARGET_CONSTANT_ALIGNMENT spu_constant_alignment - -#undef TARGET_HAVE_SPECULATION_SAFE_VALUE -#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed - -struct gcc_target targetm = TARGET_INITIALIZER; - -#include "gt-spu.h" |