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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-03-19 23:23:31 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2013-03-19 23:23:31 +0000 |
| commit | 361706a7183b54fecfbbb1bd76dbd62d5b56cdab (patch) | |
| tree | fd647decc30822081e54e76c0f6f58b8617101a4 /lib | |
| parent | f2914c3b2b2149297980c716de83e89f2c383fee (diff) | |
Annotate various null idioms with SchedRW lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177461 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 29942b09c6..768d166b97 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -364,7 +364,7 @@ let Predicates = [HasAVX] in { // Alias instructions that map fld0 to xorps for sse or vxorps for avx. // This is expanded by ExpandPostRAPseudos. let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, - isPseudo = 1 in { + isPseudo = 1, SchedRW = [WriteZero] in { def FsFLD0SS : I<0, Pseudo, (outs FR32:$dst), (ins), "", [(set FR32:$dst, fp32imm0)]>, Requires<[HasSSE1]>; def FsFLD0SD : I<0, Pseudo, (outs FR64:$dst), (ins), "", @@ -381,7 +381,7 @@ let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, // We set canFoldAsLoad because this can be converted to a constant-pool // load of an all-zeros value if folding it would be beneficial. let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, - isPseudo = 1 in { + isPseudo = 1, SchedRW = [WriteZero] in { def V_SET0 : I<0, Pseudo, (outs VR128:$dst), (ins), "", [(set VR128:$dst, (v4f32 immAllZerosV))]>; } @@ -398,7 +398,7 @@ def : Pat<(v16i8 immAllZerosV), (V_SET0)>; // at the rename stage without using any execution unit, so SET0PSY // and SET0PDY can be used for vector int instructions without penalty let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, - isPseudo = 1, Predicates = [HasAVX] in { + isPseudo = 1, Predicates = [HasAVX], SchedRW = [WriteZero] in { def AVX_SET0 : I<0, Pseudo, (outs VR256:$dst), (ins), "", [(set VR256:$dst, (v8f32 immAllZerosV))]>; } @@ -436,7 +436,7 @@ def : Pat<(bc_v4i64 (v8f32 immAllZerosV)), // We set canFoldAsLoad because this can be converted to a constant-pool // load of an all-ones value if folding it would be beneficial. let isReMaterializable = 1, isAsCheapAsAMove = 1, canFoldAsLoad = 1, - isPseudo = 1 in { + isPseudo = 1, SchedRW = [WriteZero] in { def V_SETALLONES : I<0, Pseudo, (outs VR128:$dst), (ins), "", [(set VR128:$dst, (v4i32 immAllOnesV))]>; let Predicates = [HasAVX2] in |