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Unwind instructions are intrinsically alive, just like returns

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8462 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-09-10 20:38:14 +00:00
parent b884f597d6
commit 545a76ced8
1 changed files with 3 additions and 3 deletions
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6
lib/Transforms/Scalar/ADCE.cpp
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@ -84,8 +84,8 @@ private:
} }
inline void markTerminatorLive(const BasicBlock *BB) { inline void markTerminatorLive(const BasicBlock *BB) {
DEBUG(std::cerr << "Terminat Live: " << BB->getTerminator()); DEBUG(std::cerr << "Terminator Live: " << BB->getTerminator());
markInstructionLive((Instruction*)BB->getTerminator()); markInstructionLive(const_cast<TerminatorInst*>(BB->getTerminator()));
} }
}; };
@ -176,7 +176,7 @@ bool ADCE::doADCE() {
BBI != BBE; ++BBI) { BBI != BBE; ++BBI) {
BasicBlock *BB = *BBI; BasicBlock *BB = *BBI;
for (BasicBlock::iterator II = BB->begin(), EI = BB->end(); II != EI; ) { for (BasicBlock::iterator II = BB->begin(), EI = BB->end(); II != EI; ) {
if (II->mayWriteToMemory() || II->getOpcode() == Instruction::Ret) { if (II->mayWriteToMemory() || isa<ReturnInst>(II) || isa<UnwindInst>(II)){
markInstructionLive(II); markInstructionLive(II);
++II; // Increment the inst iterator if the inst wasn't deleted ++II; // Increment the inst iterator if the inst wasn't deleted
} else if (isInstructionTriviallyDead(II)) { } else if (isInstructionTriviallyDead(II)) {