diff options
Diffstat (limited to 'llvm/lib/Transforms/Vectorize')
| -rw-r--r-- | llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp index 79528e5927e..d0d72d8de90 100644 --- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp +++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp @@ -4412,6 +4412,13 @@ bool LoopVectorizationCostModel::interleavedAccessCanBeWidened(Instruction *I, auto *Group = getInterleavedAccessGroup(I); assert(Group && "Must have a group."); + // If the instruction's allocated size doesn't equal it's type size, it + // requires padding and will be scalarized. + auto &DL = I->getModule()->getDataLayout(); + auto *ScalarTy = getMemInstValueType(I); + if (hasIrregularType(ScalarTy, DL, VF)) + return false; + // Check if masking is required. // A Group may need masking for one of two reasons: it resides in a block that // needs predication, or it was decided to use masking to deal with gaps. |
