diff options
Diffstat (limited to 'gcc/config/i386/i386.md')
| -rw-r--r-- | gcc/config/i386/i386.md | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 5825aca..a50475b 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -2968,7 +2968,8 @@ (match_operand:SWI248 1 "const_int_operand"))] "optimize_insn_for_size_p () && optimize_size > 1 && operands[1] != const0_rtx - && operands[1] != constm1_rtx + && (operands[1] != constm1_rtx + || (<MODE>mode == DImode && LEGACY_INT_REG_P (operands[0]))) && IN_RANGE (INTVAL (operands[1]), -128, 127) && !ix86_red_zone_used && REGNO (operands[0]) != SP_REG" @@ -12810,8 +12811,8 @@ (zero_extend:DI (and:SI (match_dup 1) (match_dup 2)))) (clobber (reg:CC FLAGS_REG))])] { - if (GET_CODE (operands[2]) == SYMBOL_REF - || GET_CODE (operands[2]) == LABEL_REF) + if (SYMBOL_REF_P (operands[2]) + || LABEL_REF_P (operands[2])) { operands[2] = shallow_copy_rtx (operands[2]); PUT_MODE (operands[2], SImode); @@ -14769,6 +14770,17 @@ (compare:CCZ (neg:SWI (match_dup 0)) (const_int 0))) (set (match_dup 0) (neg:SWI (match_dup 0)))])]) +;; Optimize *negsi_1 followed by *cmpsi_ccno_1 (PR target/91384) with APX_F +(define_peephole2 + [(parallel [(set (match_operand:SWI 0 "general_reg_operand") + (neg:SWI (match_operand:SWI 1 "general_reg_operand"))) + (clobber (reg:CC FLAGS_REG))]) + (set (reg:CCZ FLAGS_REG) (compare:CCZ (match_dup 1) (const_int 0)))] + "TARGET_APX_NDD" + [(parallel [(set (reg:CCZ FLAGS_REG) + (compare:CCZ (neg:SWI (match_dup 1)) (const_int 0))) + (set (match_dup 0) (neg:SWI (match_dup 1)))])]) + ;; Special expand pattern to handle integer mode abs (define_expand "abs<mode>2" |