diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp index 72127bb0d6e..550757a09f5 100644 --- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp +++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp @@ -876,6 +876,12 @@ bool MemCpyOpt::processMemSetMemCpyDependence(MemCpyInst *MemCpy, IRBuilder<> Builder(MemCpy->getNextNode()); + // If the sizes have different types (i32 vs i64), promote both to i64. + if (DestSize->getType() != SrcSize->getType()) { + DestSize = Builder.CreateZExt(DestSize, Builder.getInt64Ty()); + SrcSize = Builder.CreateZExt(SrcSize, Builder.getInt64Ty()); + } + Value *MemsetLen = Builder.CreateSelect(Builder.CreateICmpULE(DestSize, SrcSize), ConstantInt::getNullValue(DestSize->getType()), |
