diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp index 76b565c0e22..6cdaba53a05 100644 --- a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp +++ b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp @@ -117,13 +117,21 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) { if (NumRetVals == 0) ReturnInst::Create(NULL, NewRetBlock); else if (const StructType *STy = dyn_cast<StructType>(F.getReturnType())) { - Instruction *InsertPt = NewRetBlock->getFirstNonPHI(); + Instruction *InsertPt = NULL; + if (NumRetVals == 0) + InsertPt = NewRetBlock->getFirstNonPHI(); + PHINode *PN = NULL; for (unsigned i = 0; i < NumRetVals; ++i) { - PHINode *PN = PHINode::Create(STy->getElementType(i), "UnifiedRetVal." - + utostr(i), InsertPt); + if (InsertPt) + PN = PHINode::Create(STy->getElementType(i), "UnifiedRetVal." + + utostr(i), InsertPt); + else + PN = PHINode::Create(STy->getElementType(i), "UnifiedRetVal." + + utostr(i), NewRetBlock); Phis.push_back(PN); + InsertPt = PN; } - ReturnInst::Create(&Phis[0], NumRetVals); + ReturnInst::Create(&Phis[0], NumRetVals, NewRetBlock); } else { // If the function doesn't return void... add a PHI node to the block... |
