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Fix two tests that I crashed in the previous commits. The mask elts

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on the second half must be reindexed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136454 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2011-07-29 02:05:28 +00:00
parent dd6353073f
commit 6126005259
2 changed files with 18 additions and 6 deletions
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22
lib/Target/X86/X86ISelLowering.cpp
View File

@ -3159,7 +3159,13 @@ static bool isCommutedSHUFP(ShuffleVectorSDNode *N) {
/// isMOVHLPSMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a shuffle of elements that is suitable for input to MOVHLPS.
bool X86::isMOVHLPSMask(ShuffleVectorSDNode *N) {
if (N->getValueType(0).getVectorNumElements() != 4)
EVT VT = N->getValueType(0);
unsigned NumElems = VT.getVectorNumElements();
if (VT.getSizeInBits() != 128)
return false;
if (NumElems != 4)
return false;
// Expect bit0 == 6, bit1 == 7, bit2 == 2, bit3 == 3
@ -3173,15 +3179,19 @@ bool X86::isMOVHLPSMask(ShuffleVectorSDNode *N) {
/// of vector_shuffle v, v, <2, 3, 2, 3>, i.e. vector_shuffle v, undef,
/// <2, 3, 2, 3>
bool X86::isMOVHLPS_v_undef_Mask(ShuffleVectorSDNode *N) {
unsigned NumElems = N->getValueType(0).getVectorNumElements();
EVT VT = N->getValueType(0);
unsigned NumElems = VT.getVectorNumElements();
if (VT.getSizeInBits() != 128)
return false;
if (NumElems != 4)
return false;
return isUndefOrEqual(N->getMaskElt(0), 2) &&
isUndefOrEqual(N->getMaskElt(1), 3) &&
isUndefOrEqual(N->getMaskElt(2), 2) &&
isUndefOrEqual(N->getMaskElt(3), 3);
isUndefOrEqual(N->getMaskElt(1), 3) &&
isUndefOrEqual(N->getMaskElt(2), 2) &&
isUndefOrEqual(N->getMaskElt(3), 3);
}
/// isMOVLPMask - Return true if the specified VECTOR_SHUFFLE operand
@ -3501,6 +3511,8 @@ static unsigned getShuffleVPERMILPSImmediate(SDNode *N) {
int MaskElt = SVOp->getMaskElt(i+(l*LaneSize));
if (MaskElt < 0)
continue;
if (MaskElt >= LaneSize)
MaskElt -= LaneSize;
Mask |= MaskElt << (i*2);
}
}

2
test/CodeGen/X86/avx-vpermil.ll
View File

@ -31,7 +31,7 @@ entry:
; vpermil should match masks like this: <u,3,1,2,4,u,5,6>. Check that the
; target specific mask was correctly generated.
; CHECK: vpermilps $-100
define <8 x float> @funcA(<8 x float> %a) nounwind uwtable readnone ssp {
define <8 x float> @funcE(<8 x float> %a) nounwind uwtable readnone ssp {
entry:
%shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 8, i32 3, i32 1, i32 2, i32 4, i32 8, i32 5, i32 6>
ret <8 x float> %shuffle