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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 | cf969eadaf5786cea0c008f3c786360d34c8bc34 (patch) | |
| tree | 834c6cf9e2241145b9e0d622563391397ce0170e /llvm/lib | |
| parent | 49ca8aab584c12dc1020582377484671bb9722f7 (diff) | |
| download | bcm5719-llvm-cf969eadaf5786cea0c008f3c786360d34c8bc34.tar.gz bcm5719-llvm-cf969eadaf5786cea0c008f3c786360d34c8bc34.zip | |
Simplify vector lane handling math a bit. No functional change intended.
llvm-svn: 187783
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 38 |
1 files changed, 16 insertions, 22 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 9925bbb366a..811334eafc2 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/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)) |
