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Fix compilation of 126.gcc: intrinsic functions cannot throw, so they are not

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allowed in invoke instructions.  Thus, if we are inlining a call to an intrinsic
function into an invoke site, we don't need to turn the call into an invoke!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11384 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-13 16:47:35 +00:00
parent 0db085baec
commit 494b6920b0
1 changed files with 32 additions and 27 deletions
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59
lib/Transforms/Utils/InlineFunction.cpp
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@ -123,34 +123,39 @@ bool llvm::InlineFunction(CallSite CS) {
// We only need to check for function calls: inlined invoke instructions
// require no special handling...
if (CallInst *CI = dyn_cast<CallInst>(I)) {
// Convert this function call into an invoke instruction...
// Convert this function call into an invoke instruction... if it's
// not an intrinsic function call (which are known to not throw).
if (CI->getCalledFunction() &&
CI->getCalledFunction()->getIntrinsicID()) {
++I;
} else {
// First, split the basic block...
BasicBlock *Split = BB->splitBasicBlock(CI, CI->getName()+".noexc");
// Next, create the new invoke instruction, inserting it at the end
// of the old basic block.
InvokeInst *II =
new InvokeInst(CI->getCalledValue(), Split, InvokeDest,
std::vector<Value*>(CI->op_begin()+1, CI->op_end()),
CI->getName(), BB->getTerminator());
// First, split the basic block...
BasicBlock *Split = BB->splitBasicBlock(CI, CI->getName()+".noexc");
// Next, create the new invoke instruction, inserting it at the end
// of the old basic block.
InvokeInst *II =
new InvokeInst(CI->getCalledValue(), Split, InvokeDest,
std::vector<Value*>(CI->op_begin()+1, CI->op_end()),
CI->getName(), BB->getTerminator());
// Make sure that anything using the call now uses the invoke!
CI->replaceAllUsesWith(II);
// Delete the unconditional branch inserted by splitBasicBlock
BB->getInstList().pop_back();
Split->getInstList().pop_front(); // Delete the original call
// 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);
// This basic block is now complete, start scanning the next one.
break;
// Make sure that anything using the call now uses the invoke!
CI->replaceAllUsesWith(II);
// Delete the unconditional branch inserted by splitBasicBlock
BB->getInstList().pop_back();
Split->getInstList().pop_front(); // Delete the original call
// 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);
// This basic block is now complete, start scanning the next one.
break;
}
} else {
++I;
}