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| author | Torbjorn Granlund <tege@gnu.org> | 1996-11-06 22:56:24 +0000 |
|---|---|---|
| committer | Torbjorn Granlund <tege@gnu.org> | 1996-11-06 22:56:24 +0000 |
| commit | 5e645e50fb7387fec097496867783b53b36a1a0e (patch) | |
| tree | 38273cb72e3197ce0f2c1899ca97e68e28462557 /gcc | |
| parent | 8a0152169477a9a450eaa349991c0140622b5e3e (diff) | |
| download | gcc-5e645e50fb7387fec097496867783b53b36a1a0e.zip gcc-5e645e50fb7387fec097496867783b53b36a1a0e.tar.gz gcc-5e645e50fb7387fec097496867783b53b36a1a0e.tar.bz2 | |
(parallel inc and branch-if-zero/nonzero): Add two new pattern variants.
(parallel inc and branch-if-zero/nonzero): Add two
new pattern variants. Change incrementing pattern to use incl/jnz.
From-SVN: r13104
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386.md | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 757e2cd..b06d9b8 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -5774,6 +5774,40 @@ (define_insn "" [(set (pc) (if_then_else (ne (match_operand:SI 0 "general_operand" "g") + (const_int 1)) + (label_ref (match_operand 1 "" "")) + (pc))) + (set (match_dup 0) + (plus:SI (match_dup 0) + (const_int -1)))] + "" + "* +{ + operands[2] = const1_rtx; + output_asm_insn (AS1 (dec%L0,%0), operands); + return \"jnz %l1\"; +}") + +(define_insn "" + [(set (pc) + (if_then_else (eq (match_operand:SI 0 "general_operand" "g") + (const_int 1)) + (label_ref (match_operand 1 "" "")) + (pc))) + (set (match_dup 0) + (plus:SI (match_dup 0) + (const_int -1)))] + "" + "* +{ + operands[2] = const1_rtx; + output_asm_insn (AS1 (dec%L0,%0), operands); + return \"jz %l1\"; +}") + +(define_insn "" + [(set (pc) + (if_then_else (ne (match_operand:SI 0 "general_operand" "g") (const_int -1)) (label_ref (match_operand 1 "" "")) (pc))) @@ -5784,8 +5818,8 @@ "* { operands[2] = const1_rtx; - output_asm_insn (AS2 (add%L0,%2,%0), operands); - return \"jnc %l1\"; + output_asm_insn (AS1 (inc%L0,%0), operands); + return \"jnz %l1\"; }") (define_insn "" @@ -5801,8 +5835,8 @@ "* { operands[2] = const1_rtx; - output_asm_insn (AS2 (add%L0,%2,%0), operands); - return \"jc %l1\"; + output_asm_insn (AS1 (inc%L0,%0), operands); + return \"jz %l1\"; }") ;; Implement switch statements when generating PIC code. Switches are |