diff options
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index e7a1617fd6..cb80cdb74f 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -7773,6 +7773,14 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) { if (Callee->isDeclaration() && !Caller->use_empty() && // Conversion is ok if changing from pointer to int of same size. !(isa<PointerType>(FT->getReturnType()) && + const FunctionType *ActualFT = + cast<FunctionType>(cast<PointerType>(CE->getType())->getElementType()); + + // If the parameter attributes don't match up, don't do the xform. We don't + // want to lose an sret attribute or something. + if (FT->getParamAttrs() != ActualFT->getParamAttrs()) + return false; + TD->getIntPtrType() == OldRetTy)) return false; // Cannot transform this return value. |