replica
/
hanchenye-llvm-project
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fix insert point handling for multiple return values. 

llvm-svn: 49367
This commit is contained in:
Devang Patel 2008-04-08 02:24:08 +00:00
parent fe767621ca
commit 8cd2a3ae2a
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
View File

@ -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...