diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 35715fb8ca..9e069fd05b 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -7575,6 +7575,11 @@ Instruction *InstCombiner::visitBitCast(BitCastInst &CI) { const Type *DstElTy = DstPTy->getElementType(); const Type *SrcElTy = SrcPTy->getElementType(); + // If the address spaces don't match, don't eliminate the bitcast, which is + // required for changing types. + if (SrcPTy->getAddressSpace() != DstPTy->getAddressSpace()) + return 0; + // If we are casting a malloc or alloca to a pointer to a type of the same // size, rewrite the allocation instruction to allocate the "right" type. if (AllocationInst *AI = dyn_cast<AllocationInst>(Src)) |