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Rather than having special rules like "intrinsics cannot
throw exceptions", just mark intrinsics with the nounwind attribute. Likewise, mark intrinsics as readnone/readonly and get rid of special aliasing logic (which didn't use anything more than this anyway). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44544 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -177,7 +177,7 @@ bool LowerGC::runOnFunction(Function &F) {
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for (BasicBlock::iterator II = BB->begin(), E = BB->end(); II != E;)
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if (CallInst *CI = dyn_cast<CallInst>(II++)) {
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if (!CI->getCalledFunction() ||
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!CI->getCalledFunction()->getIntrinsicID())
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!CI->getCalledFunction()->isIntrinsic())
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NormalCalls.push_back(CI); // Remember all normal function calls.
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if (Function *F = CI->getCalledFunction())
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