diff options
Diffstat (limited to 'gcc/config/xtensa/xtensa.cc')
| -rw-r--r-- | gcc/config/xtensa/xtensa.cc | 69 |
1 files changed, 59 insertions, 10 deletions
diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc index 828c764..950eb5a 100644 --- a/gcc/config/xtensa/xtensa.cc +++ b/gcc/config/xtensa/xtensa.cc @@ -56,6 +56,7 @@ along with GCC; see the file COPYING3. If not see #include "hw-doloop.h" #include "rtl-iter.h" #include "insn-attr.h" +#include "tree-pass.h" /* This file should be included last. */ #include "target-def.h" @@ -199,6 +200,7 @@ static void xtensa_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED, HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, tree function); +static bool xtensa_lra_p (void); static rtx xtensa_delegitimize_address (rtx); @@ -295,7 +297,7 @@ static rtx xtensa_delegitimize_address (rtx); #define TARGET_CANNOT_FORCE_CONST_MEM xtensa_cannot_force_const_mem #undef TARGET_LRA_P -#define TARGET_LRA_P hook_bool_void_false +#define TARGET_LRA_P xtensa_lra_p #undef TARGET_LEGITIMATE_ADDRESS_P #define TARGET_LEGITIMATE_ADDRESS_P xtensa_legitimate_address_p @@ -492,21 +494,30 @@ xtensa_mask_immediate (HOST_WIDE_INT v) int xt_true_regnum (rtx x) { - if (GET_CODE (x) == REG) + if (REG_P (x)) { - if (reg_renumber - && REGNO (x) >= FIRST_PSEUDO_REGISTER - && reg_renumber[REGNO (x)] >= 0) + if (! HARD_REGISTER_P (x) + && reg_renumber + && (lra_in_progress || reg_renumber[REGNO (x)] >= 0)) return reg_renumber[REGNO (x)]; return REGNO (x); } - if (GET_CODE (x) == SUBREG) + if (SUBREG_P (x)) { int base = xt_true_regnum (SUBREG_REG (x)); - if (base >= 0 && base < FIRST_PSEUDO_REGISTER) - return base + subreg_regno_offset (REGNO (SUBREG_REG (x)), - GET_MODE (SUBREG_REG (x)), - SUBREG_BYTE (x), GET_MODE (x)); + + if (base >= 0 + && HARD_REGISTER_NUM_P (base)) + { + struct subreg_info info; + + subreg_get_info (lra_in_progress + ? (unsigned) base : REGNO (SUBREG_REG (x)), + GET_MODE (SUBREG_REG (x)), + SUBREG_BYTE (x), GET_MODE (x), &info); + if (info.representable_p) + return base + info.offset; + } } return -1; } @@ -2477,6 +2488,36 @@ xtensa_shlrd_which_direction (rtx op0, rtx op1) } +/* Return true after "split1" pass has been finished. */ + +bool +xtensa_split1_finished_p (void) +{ + return cfun && (cfun->curr_properties & PROP_rtl_split_insns); +} + + +/* Split a DImode pair of reg (operand[0]) and const_int (operand[1]) into + two SImode pairs, the low-part (operands[0] and [1]) and the high-part + (operands[2] and [3]). */ + +void +xtensa_split_DI_reg_imm (rtx *operands) +{ + rtx lowpart, highpart; + + if (WORDS_BIG_ENDIAN) + split_double (operands[1], &highpart, &lowpart); + else + split_double (operands[1], &lowpart, &highpart); + + operands[3] = highpart; + operands[2] = gen_highpart (SImode, operands[0]); + operands[1] = lowpart; + operands[0] = gen_lowpart (SImode, operands[0]); +} + + /* Implement TARGET_CANNOT_FORCE_CONST_MEM. */ static bool @@ -5119,4 +5160,12 @@ xtensa_delegitimize_address (rtx op) return op; } +/* Implement TARGET_LRA_P. */ + +static bool +xtensa_lra_p (void) +{ + return TARGET_LRA; +} + #include "gt-xtensa.h" |