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Get the list of PHI node values before the basic block is split. Also, add

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PHI node entries for unwind instructions just like for call instructions which
became invokes!  This fixes PR57, tested by
Inline/2003-10-26-InlineInvokeExceptionDestPhi.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9526 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-27 05:33:09 +00:00
parent 5bf9ce9a3a
commit 198f4507e2
1 changed files with 16 additions and 9 deletions
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25
lib/Transforms/Utils/InlineFunction.cpp
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@ -60,6 +60,15 @@ bool InlineFunction(CallSite CS) {
if (InvokeInst *II = dyn_cast<InvokeInst>(TheCall)) {
InvokeDest = II->getExceptionalDest();
// If there are PHI nodes in the exceptional destination block, we need to
// keep track of which values came into them from this invoke, then remove
// the entry for this block.
for (BasicBlock::iterator I = InvokeDest->begin();
PHINode *PN = dyn_cast<PHINode>(I); ++I) {
// Save the value to use for this edge...
InvokeDestPHIValues.push_back(PN->getIncomingValueForBlock(OrigBB));
}
// Add an unconditional branch to make this look like the CallInst case...
BranchInst *NewBr = new BranchInst(II->getNormalDest(), TheCall);
@ -69,15 +78,6 @@ bool InlineFunction(CallSite CS) {
AfterCallBB = OrigBB->splitBasicBlock(NewBr,
CalledFunc->getName()+".entry");
// If there are PHI nodes in the exceptional destination block, we need to
// keep track of which values came into them from this invoke, then remove
// the entry for this block.
for (BasicBlock::iterator I = InvokeDest->begin();
PHINode *PN = dyn_cast<PHINode>(I); ++I) {
// Save the value to use for this edge...
InvokeDestPHIValues.push_back(PN->getIncomingValueForBlock(AfterCallBB));
}
// Remove (unlink) the InvokeInst from the function...
OrigBB->getInstList().remove(TheCall);
@ -240,6 +240,13 @@ bool InlineFunction(CallSite CS) {
// Delete the unwind instruction!
UI->getParent()->getInstList().pop_back();
// Update any PHI nodes in the exceptional block to indicate that
// there is now a new entry in them.
unsigned i = 0;
for (BasicBlock::iterator I = InvokeDest->begin();
PHINode *PN = dyn_cast<PHINode>(I); ++I, ++i)
PN->addIncoming(InvokeDestPHIValues[i], BB);
}
}