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remove a bunch of explicit code previously needed to update the

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callgraph.  This is now dead because RAUW does the job.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80703 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-09-01 18:44:06 +00:00
parent 1f15228398
commit 81dfb38852
1 changed files with 7 additions and 27 deletions
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34
lib/Transforms/Utils/InlineFunction.cpp
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@ -43,13 +43,11 @@ bool llvm::InlineFunction(InvokeInst *II, CallGraph *CG, const TargetData *TD,
/// an invoke, we have to check all of all of the calls that can throw into
/// invokes. This function analyze BB to see if there are any calls, and if so,
/// it rewrites them to be invokes that jump to InvokeDest and fills in the PHI
/// nodes in that block with the values specified in InvokeDestPHIValues. If
/// CallerCGN is specified, this function updates the call graph.
/// nodes in that block with the values specified in InvokeDestPHIValues.
///
static void HandleCallsInBlockInlinedThroughInvoke(BasicBlock *BB,
BasicBlock *InvokeDest,
const SmallVectorImpl<Value*> &InvokeDestPHIValues,
CallGraphNode *CallerCGN) {
const SmallVectorImpl<Value*> &InvokeDestPHIValues) {
for (BasicBlock::iterator BBI = BB->begin(), E = BB->end(); BBI != E; ) {
Instruction *I = BBI++;
@ -76,24 +74,10 @@ static void HandleCallsInBlockInlinedThroughInvoke(BasicBlock *BB,
II->setCallingConv(CI->getCallingConv());
II->setAttributes(CI->getAttributes());
// Make sure that anything using the call now uses the invoke!
// Make sure that anything using the call now uses the invoke! This also
// updates the CallGraph if present.
CI->replaceAllUsesWith(II);
// Update the callgraph if present.
if (CallerCGN) {
// We should be able to do this:
// (*CG)[Caller]->replaceCallSite(CI, II);
// but that fails if the old call site isn't in the call graph,
// which, because of LLVM bug 3601, it sometimes isn't.
for (CallGraphNode::iterator NI = CallerCGN->begin(), NE = CallerCGN->end();
NI != NE; ++NI) {
if (NI->first == CI) {
NI->first = II;
break;
}
}
}
// Delete the unconditional branch inserted by splitBasicBlock
BB->getInstList().pop_back();
Split->getInstList().pop_front(); // Delete the original call
@ -120,8 +104,7 @@ static void HandleCallsInBlockInlinedThroughInvoke(BasicBlock *BB,
/// block of the inlined code (the last block is the end of the function),
/// and InlineCodeInfo is information about the code that got inlined.
static void HandleInlinedInvoke(InvokeInst *II, BasicBlock *FirstNewBlock,
ClonedCodeInfo &InlinedCodeInfo,
CallGraph *CG) {
ClonedCodeInfo &InlinedCodeInfo) {
BasicBlock *InvokeDest = II->getUnwindDest();
SmallVector<Value*, 8> InvokeDestPHIValues;
@ -150,13 +133,10 @@ static void HandleInlinedInvoke(InvokeInst *II, BasicBlock *FirstNewBlock,
return;
}
CallGraphNode *CallerCGN = 0;
if (CG) CallerCGN = (*CG)[Caller];
for (Function::iterator BB = FirstNewBlock, E = Caller->end(); BB != E; ++BB){
if (InlinedCodeInfo.ContainsCalls)
HandleCallsInBlockInlinedThroughInvoke(BB, InvokeDest,
InvokeDestPHIValues, CallerCGN);
InvokeDestPHIValues);
if (UnwindInst *UI = dyn_cast<UnwindInst>(BB->getTerminator())) {
// An UnwindInst requires special handling when it gets inlined into an
@ -539,7 +519,7 @@ bool llvm::InlineFunction(CallSite CS, CallGraph *CG, const TargetData *TD,
// any inlined 'unwind' instructions into branches to the invoke exception
// destination, and call instructions into invoke instructions.
if (InvokeInst *II = dyn_cast<InvokeInst>(TheCall))
HandleInlinedInvoke(II, FirstNewBlock, InlinedFunctionInfo, CG);
HandleInlinedInvoke(II, FirstNewBlock, InlinedFunctionInfo);
// If we cloned in _exactly one_ basic block, and if that block ends in a
// return instruction, we splice the body of the inlined callee directly into