diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2005-12-13 00:54:44 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2005-12-13 00:54:44 +0000 |
| commit | 5ce4edb9676f570caa301da3b9608b8bd3838ee3 (patch) | |
| tree | 03b426ef5d081704f2bb59b8e9fe90004af35532 | |
| parent | 5a38e0210dce709988e5af69bdd32eec87325e0c (diff) | |
Add neg and not patterns which fold load + stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24685 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 736b8a90d1..e93f06ddb0 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -682,9 +682,12 @@ def NEG16r : I<0xF7, MRM3r, (ops R16:$dst, R16:$src), "neg{w} $dst", def NEG32r : I<0xF7, MRM3r, (ops R32:$dst, R32:$src), "neg{l} $dst", [(set R32:$dst, (ineg R32:$src))]>; let isTwoAddress = 0 in { - def NEG8m : I<0xF6, MRM3m, (ops i8mem :$dst), "neg{b} $dst", []>; - def NEG16m : I<0xF7, MRM3m, (ops i16mem:$dst), "neg{w} $dst", []>, OpSize; - def NEG32m : I<0xF7, MRM3m, (ops i32mem:$dst), "neg{l} $dst", []>; + def NEG8m : I<0xF6, MRM3m, (ops i8mem :$dst), "neg{b} $dst", + [(store (ineg (i8 (load addr:$dst))), addr:$dst)]>; + def NEG16m : I<0xF7, MRM3m, (ops i16mem:$dst), "neg{w} $dst", + [(store (ineg (i16 (load addr:$dst))), addr:$dst)]>, OpSize; + def NEG32m : I<0xF7, MRM3m, (ops i32mem:$dst), "neg{l} $dst", + [(store (ineg (i32 (load addr:$dst))), addr:$dst)]>; } def NOT8r : I<0xF6, MRM2r, (ops R8 :$dst, R8 :$src), "not{b} $dst", @@ -694,9 +697,12 @@ def NOT16r : I<0xF7, MRM2r, (ops R16:$dst, R16:$src), "not{w} $dst", def NOT32r : I<0xF7, MRM2r, (ops R32:$dst, R32:$src), "not{l} $dst", [(set R32:$dst, (not R32:$src))]>; let isTwoAddress = 0 in { - def NOT8m : I<0xF6, MRM2m, (ops i8mem :$dst), "not{b} $dst", []>; - def NOT16m : I<0xF7, MRM2m, (ops i16mem:$dst), "not{w} $dst", []>, OpSize; - def NOT32m : I<0xF7, MRM2m, (ops i32mem:$dst), "not{l} $dst", []>; + def NOT8m : I<0xF6, MRM2m, (ops i8mem :$dst), "not{b} $dst", + [(store (not (i8 (load addr:$dst))), addr:$dst)]>; + def NOT16m : I<0xF7, MRM2m, (ops i16mem:$dst), "not{w} $dst", + [(store (not (i16 (load addr:$dst))), addr:$dst)]>, OpSize; + def NOT32m : I<0xF7, MRM2m, (ops i32mem:$dst), "not{l} $dst", + [(store (not (i32 (load addr:$dst))), addr:$dst)]>; } // TODO: inc/dec is slow for P4, but fast for Pentium-M. |