diff options
Diffstat (limited to 'llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp b/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp index 7b8527ef79d..a3729769901 100644 --- a/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp +++ b/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp @@ -309,9 +309,7 @@ void DecodePSHUFBMask(const Constant *C, SmallVectorImpl<int> &ShuffleMask) { // i32 -2147483648, i32 -2147483648> unsigned MaskTySize = MaskTy->getPrimitiveSizeInBits(); - - if (MaskTySize != 128 && MaskTySize != 256) // FIXME: Add support for AVX-512. - return; + assert(MaskTySize == 128 || MaskTySize == 256 || MaskTySize == 512); // This is a straightforward byte vector. if (MaskTy->isVectorTy() && MaskTy->getVectorElementType()->isIntegerTy(8)) { @@ -321,7 +319,7 @@ void DecodePSHUFBMask(const Constant *C, SmallVectorImpl<int> &ShuffleMask) { for (int i = 0; i < NumElements; ++i) { // For AVX vectors with 32 bytes the base of the shuffle is the 16-byte // lane of the vector we're inside. - int Base = i < 16 ? 0 : 16; + int Base = i & ~0xf; Constant *COp = C->getAggregateElement(i); if (!COp) { ShuffleMask.clear(); |
