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| author | Craig Topper <craig.topper@gmail.com> | 2013-08-06 07:23:12 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-08-06 07:23:12 +0000 |
| commit | 5923547e2a143292c252adf9c9f23786eb25539a (patch) | |
| tree | 64fdee4ddf82c797380ac5c955601698ec6f7112 | |
| parent | 57bc5a0b5bb7dbfd461e630370d2c18fbbfbaad4 (diff) | |
| download | external_llvm-5923547e2a143292c252adf9c9f23786eb25539a.zip external_llvm-5923547e2a143292c252adf9c9f23786eb25539a.tar.gz external_llvm-5923547e2a143292c252adf9c9f23786eb25539a.tar.bz2 | |
Simplify vector lane handling math a bit. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187783 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 38 |
1 files changed, 16 insertions, 22 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 9925bbb..811334e 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3886,12 +3886,10 @@ static bool isUNPCKLMask(ArrayRef<int> Mask, EVT VT, unsigned NumLanes = VT.getSizeInBits()/128; unsigned NumLaneElts = NumElts/NumLanes; - for (unsigned l = 0; l != NumLanes; ++l) { - for (unsigned i = l*NumLaneElts, j = l*NumLaneElts; - i != (l+1)*NumLaneElts; - i += 2, ++j) { - int BitI = Mask[i]; - int BitI1 = Mask[i+1]; + for (unsigned l = 0; l != NumElts; l += NumLaneElts) { + for (unsigned i = 0, j = l; i != NumLaneElts; i += 2, ++j) { + int BitI = Mask[l+i]; + int BitI1 = Mask[l+i+1]; if (!isUndefOrEqual(BitI, j)) return false; if (V2IsSplat) { @@ -3925,11 +3923,10 @@ static bool isUNPCKHMask(ArrayRef<int> Mask, EVT VT, unsigned NumLanes = VT.getSizeInBits()/128; unsigned NumLaneElts = NumElts/NumLanes; - for (unsigned l = 0; l != NumLanes; ++l) { - for (unsigned i = l*NumLaneElts, j = (l*NumLaneElts)+NumLaneElts/2; - i != (l+1)*NumLaneElts; i += 2, ++j) { - int BitI = Mask[i]; - int BitI1 = Mask[i+1]; + for (unsigned l = 0; l != NumElts; l += NumLaneElts) { + for (unsigned i = 0, j = l+NumLaneElts/2; i != NumLaneElts; i += 2, ++j) { + int BitI = Mask[l+i]; + int BitI1 = Mask[l+i+1]; if (!isUndefOrEqual(BitI, j)) return false; if (V2IsSplat) { @@ -3970,12 +3967,10 @@ static bool isUNPCKL_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { unsigned NumLanes = VT.getSizeInBits()/128; unsigned NumLaneElts = NumElts/NumLanes; - for (unsigned l = 0; l != NumLanes; ++l) { - for (unsigned i = l*NumLaneElts, j = l*NumLaneElts; - i != (l+1)*NumLaneElts; - i += 2, ++j) { - int BitI = Mask[i]; - int BitI1 = Mask[i+1]; + for (unsigned l = 0; l != NumElts; l += NumLaneElts) { + for (unsigned i = 0, j = l; i != NumLaneElts; i += 2, ++j) { + int BitI = Mask[l+i]; + int BitI1 = Mask[l+i+1]; if (!isUndefOrEqual(BitI, j)) return false; @@ -4005,11 +4000,10 @@ static bool isUNPCKH_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { unsigned NumLanes = VT.getSizeInBits()/128; unsigned NumLaneElts = NumElts/NumLanes; - for (unsigned l = 0; l != NumLanes; ++l) { - for (unsigned i = l*NumLaneElts, j = (l*NumLaneElts)+NumLaneElts/2; - i != (l+1)*NumLaneElts; i += 2, ++j) { - int BitI = Mask[i]; - int BitI1 = Mask[i+1]; + for (unsigned l = 0; l != NumElts; l += NumLaneElts) { + for (unsigned i = 0, j = l+NumLaneElts/2; i != NumLaneElts; i += 2, ++j) { + int BitI = Mask[l+i]; + int BitI1 = Mask[l+i+1]; if (!isUndefOrEqual(BitI, j)) return false; if (!isUndefOrEqual(BitI1, j)) |