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Diffstat (limited to 'gcc/config/i386/i386.md')
| -rw-r--r-- | gcc/config/i386/i386.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 6fed9b8..d909721 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -6766,6 +6766,17 @@ [(set_attr "type" "alu") (set_attr "mode" "<MODE>")]) +(define_peephole2 + [(parallel + [(set (reg:CC FLAGS_REG) + (compare:CC (match_operand:SWI 0 "general_reg_operand") + (match_operand:SWI 1 "general_gr_operand"))) + (set (match_dup 0) + (minus:SWI (match_dup 0) (match_dup 1)))])] + "find_regno_note (peep2_next_insn (0), REG_UNUSED, REGNO (operands[0])) != 0" + [(set (reg:CC FLAGS_REG) + (compare:CC (match_dup 0) (match_dup 1)))]) + (define_insn "*subsi_3_zext" [(set (reg FLAGS_REG) (compare (match_operand:SI 1 "register_operand" "0") |