target.def (legitimate_constant_p): New hook.

gcc/
	* target.def (legitimate_constant_p): New hook.
	* doc/tm.texi.in (LEGITIMATE_CONSTANT_P): Replace with...
	(TARGET_LEGITIMATE_CONSTANT_P): ...this.
	* doc/tm.texi: Regenerate.
	* hooks.h (hook_bool_mode_rtx_true): Declare.
	* hooks.c (hook_bool_mode_rtx_true): Define.
	* system.h (LEGITIMATE_CONSTANT_P): Poison.
	* calls.c (precompute_register_parameters): Replace uses of
	LEGITIMATE_CONSTANT_P with targetm.legitimate_constant_p.
	(emit_library_call_value_1): Likewise.
	* expr.c (move_block_to_reg, can_store_by_pieces, emit_move_insn)
	(compress_float_constant, emit_push_insn, expand_expr_real_1): Likewise.
	* ira-costs.c (scan_one_insn): Likewise.
	* recog.c (general_operand, immediate_operand): Likewise.
	* reload.c (find_reloads_toplev, find_reloads_address_part): Likewise.
	* reload1.c (init_eliminable_invariants): Likewise.

	* config/alpha/alpha-protos.h (alpha_legitimate_constant_p): Add a
	mode argument.
	* config/alpha/alpha.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/alpha/alpha.c (alpha_legitimate_constant_p): Add a mode
	argument.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.
	* config/alpha/predicates.md (input_operand): Update call to
	alpha_legitimate_constant_p.

	* config/arm/arm-protos.h (arm_cannot_force_const_mem): Delete.
	* config/arm/arm.h (ARM_LEGITIMATE_CONSTANT_P): Likewise.
	(THUMB_LEGITIMATE_CONSTANT_P, LEGITIMATE_CONSTANT_P): Likewise.
	* config/arm/arm.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(arm_legitimate_constant_p_1, thumb_legitimate_constant_p)
	(arm_legitimate_constant_p): New functions.
	(arm_cannot_force_const_mem): Make static.

	* config/avr/avr.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/bfin/bfin-protos.h (bfin_legitimate_constant_p): Delete.
	* config/bfin/bfin.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/bfin/bfin.c (expand_move): Use targetm.legitimate_constant_p
	instead of bfin_legitimate_constant_p.
	(bfin_legitimate_constant_p): Make static.  Add a mode argument.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/cris/cris.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/fr30/fr30.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/frv/frv-protos.h (frv_legitimate_constant_p): Delete.
	* config/frv/frv.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/frv/frv.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(frv_legitimate_constant_p): Make static.  Add a mode argument.

	* config/h8300/h8300-protos.h (h8300_legitimate_constant_p): Delete.
	* config/h8300/h8300.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/h8300/h8300.c (h8300_legitimate_constant_p): Likewise.

	* config/i386/i386-protos.h (legitimate_constant_p): Delete.
	* config/i386/i386.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/i386/i386.c (legitimate_constant_p): Rename to...
	(ix86_legitimate_constant_p): ...this.  Make static.  Add a mode
	argument.
	(ix86_cannot_force_const_mem): Update accordingly.
	(ix86_legitimate_address_p): Likewise.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.
	* config/i386/i386.md: Update commentary.

	* config/ia64/ia64-protos.h (ia64_legitimate_constant_p): Delete.
	* config/ia64/ia64.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/ia64/ia64.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(ia64_legitimate_constant_p): Make static.  Add a mode argument.

	* config/iq2000/iq2000.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/lm32/lm32-protos.h (lm32_legitimate_constant_p): Delete.
	* config/lm32/lm32.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/lm32/lm32.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(lm32_legitimate_constant_p): Make static.  Add a mode argument.

	* config/m32c/m32c-protos.h (m32c_legitimate_constant_p): Delete.
	* config/m32c/m32c.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/m32c/m32c.c (m32c_legitimate_constant_p): Likewise.

	* config/m32r/m32r.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/m32r/m32r.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(m32r_legitimate_constant_p): New function.

	* config/m68k/m68k-protos.h (m68k_legitimate_constant_p): Declare.
	* config/m68k/m68k.h (CONSTANT_ADDRESS_P): Call it instead of
	LEGITIMATE_CONSTANT_P.
	(LEGITIMATE_CONSTANT_P): Delete.
	* config/m68k/m68k.c (m68k_expand_prologue): Call
	m68k_legitimate_constant_p instead of LEGITIMATE_CONSTANT_P.
	(m68k_legitimate_constant_p): New function.
	* config/m68k/m68k.md: Update comments.

	* config/mcore/mcore.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/mcore/mcore.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(mcore_legitimate_constant_p): New function.

	* config/mep/mep-protos.h (mep_legitimate_constant_p): Delete.
	* config/mep/mep.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/mep/mep.c (mep_legitimate_constant_p): Make static.
	Add a mode argument.
	(mep_legitimate_address): Update accordingly.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/microblaze/microblaze-protos.h (microblaze_const_double_ok):
	Delete.
	* config/microblaze/microblaze.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/microblaze/microblaze.c (microblaze_const_double_ok): Make
	static.  Check OP's mode for VOIDmode.
	(microblaze_legitimate_constant_p): New function.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/mips/mips.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/mips/mips.c (mips_legitimate_constant_p): New function.
	(mips_cannot_force_const_mem): Use it instead of LEGITIMATE_CONSTANT_P.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.
	* config/mips/predicates.md: Update comments.

	* config/mmix/mmix-protos.h (mmix_legitimate_constant_p): Delete.
	* config/mmix/mmix.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/mmix/mmix.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(mmix_legitimate_constant_p): Make static, return a bool, and take
	a mode argument.
	(mmix_print_operand_address): Update accordingly.

	* config/mn10300/mn10300-protos.h (mn10300_legitimate_constant_p):
	Delete.
	* config/mn10300/mn10300.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/mn10300/mn10300.c (mn10300_legitimate_constant_p):
	Make static.  Add a mode argument.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/moxie/moxie.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/pa/pa.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/pa/pa.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(pa_legitimate_constant_p): New function.

	* config/picochip/picochip.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/pdp11/pdp11.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/pdp11/pdp11.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(pdp11_legitimate_constant_p): New function.

	* config/rs6000/rs6000.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/rs6000/rs6000.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(rs6000_legitimate_constant_p): New function.

	* config/rx/rx-protos.h (rx_is_legitimate_constant): Replace with...
	(rx_legitimate_constant_p): ...this.
	* config/rx/rx.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/rx/rx.c (rx_is_legitimate_constant): Replace with...
	(rx_legitimate_constant_p): ...this.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.
	* config/rx/rx.md (mov<register_modes:mode>): Update accordingly.

	* config/s390/s390-protos.h (legitimate_constant_p): Delete.
	* config/s390/s390.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/s390/s390.c (legitimate_constant_p): Rename to...
	(s390_legitimate_constant_p): ...this.  Make static, return a bool,
	and add a mode argument.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/score/score.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/sh/sh.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/sh/sh.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(sh_legitimate_constant_p): New function.

	* config/sparc/sparc-protos.h (legitimate_constant_p): Delete.
	* config/sparc/sparc.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/sparc/sparc.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(legitimate_constant_p): Rename to...
	(sparc_legitimate_constant_p): ...this.  Make static.  Add a mode
	argument.
	(constant_address_p): Update accordingly.

	* config/spu/spu-protos.h (spu_legitimate_constant_p): Add a mode
	argument and return a bool.
	* config/spu/spu.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/spu/spu.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(spu_legitimate_constant_p): Add a mode argument and return a bool.
	(spu_rtx_costs): Update accordingly.
	* config/spu/predicates.md (vec_imm_operand): Likewise.

	* config/stormy16/stormy16.h (LEGITIMATE_CONSTANT_P): Delete.

	* config/v850/v850.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/v850/v850.c (v850_legitimate_constant_p): New function.
	(TARGET_LEGITIMATE_CONSTANT_P): Define.

	* config/vax/vax-protos.h (legitimate_constant_p): Delete.
	* config/vax/vax.h (LEGITIMATE_CONSTANT_P): Likewise.
	* config/vax/vax.c (legitimate_constant_p): Likewise.

	* config/xtensa/xtensa.h (LEGITIMATE_CONSTANT_P): Delete.
	* config/xtensa/xtensa.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
	(xtensa_legitimate_constant_p): New function.

From-SVN: r172814

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index ab0fe6a..e3260c4 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -188,6 +188,7 @@ static void pa_conditional_register_usage (void);
 static enum machine_mode pa_c_mode_for_suffix (char);
 static section *pa_function_section (tree, enum node_frequency, bool, bool);
 static bool pa_cannot_force_const_mem (enum machine_mode, rtx);
+static bool pa_legitimate_constant_p (enum machine_mode, rtx);
 
 /* The following extra sections are only used for SOM.  */
 static GTY(()) section *som_readonly_data_section;
@@ -397,6 +398,9 @@ static const struct default_options pa_option_optimization_table[] =
 #undef TARGET_ASM_FUNCTION_SECTION
 #define TARGET_ASM_FUNCTION_SECTION pa_function_section
 
+#undef TARGET_LEGITIMATE_CONSTANT_P
+#define TARGET_LEGITIMATE_CONSTANT_P pa_legitimate_constant_p
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 /* Parse the -mfixed-range= option string.  */
@@ -10276,4 +10280,40 @@ pa_function_section (tree decl, enum node_frequency freq,
   return default_function_section (decl, freq, startup, exit);
 }
 
+/* Implement TARGET_LEGITIMATE_CONSTANT_P.
+
+   In 64-bit mode, we reject CONST_DOUBLES.  We also reject CONST_INTS
+   that need more than three instructions to load prior to reload.  This
+   limit is somewhat arbitrary.  It takes three instructions to load a
+   CONST_INT from memory but two are memory accesses.  It may be better
+   to increase the allowed range for CONST_INTS.  We may also be able
+   to handle CONST_DOUBLES.  */
+
+static bool
+pa_legitimate_constant_p (enum machine_mode mode, rtx x)
+{
+  if (GET_MODE_CLASS (mode) == MODE_FLOAT && x != CONST0_RTX (mode))
+    return false;
+
+  if (!NEW_HP_ASSEMBLER && !TARGET_GAS && GET_CODE (x) == LABEL_REF)
+    return false;
+
+  if (TARGET_64BIT && GET_CODE (x) == CONST_DOUBLE)
+    return false;
+
+  if (TARGET_64BIT
+      && HOST_BITS_PER_WIDE_INT > 32
+      && GET_CODE (x) == CONST_INT
+      && !reload_in_progress
+      && !reload_completed
+      && !LEGITIMATE_64BIT_CONST_INT_P (INTVAL (x))
+      && !cint_ok_for_move (INTVAL (x)))
+    return false;
+
+  if (function_label_operand (x, mode))
+    return false;
+
+  return true;
+}
+
 #include "gt-pa.h"