[X86] getFauxShuffleMask - bail for non-byte aligned shuffle types
Remove the existing assertion and just return false for unexpected shuffle value types (<X x i1> mainly....).
Found while updating combineX86ShufflesRecursively to run within SimplifyDemandedVectorElts/SimplifyDemandedBits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351365 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index f0f5f6f..9e17f4c 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -6483,8 +6483,8 @@
unsigned NumElts = VT.getVectorNumElements();
unsigned NumSizeInBits = VT.getSizeInBits();
unsigned NumBitsPerElt = VT.getScalarSizeInBits();
- assert((NumBitsPerElt % 8) == 0 && (NumSizeInBits % 8) == 0 &&
- "Expected byte aligned value types");
+ if ((NumBitsPerElt % 8) != 0 || (NumSizeInBits % 8) != 0)
+ return false;
unsigned Opcode = N.getOpcode();
switch (Opcode) {
