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[IR] Conservatively mark 'catchpad' as accessing memory

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The exact semantics of 'catchpad' are really in the hands of the
personality routine so we shouldn't assume that they have no side
effects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247322 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer 2015-09-10 18:50:09 +00:00
parent 8eaf34eed8
commit 1c018c2ad0
1 changed files with 2 additions and 0 deletions
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2
lib/IR/Instruction.cpp
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@ -414,6 +414,7 @@ bool Instruction::mayReadFromMemory() const {
case Instruction::Fence: // FIXME: refine definition of mayReadFromMemory
case Instruction::AtomicCmpXchg:
case Instruction::AtomicRMW:
case Instruction::CatchPad:
case Instruction::CatchRet:
case Instruction::TerminatePad:
return true;
@ -436,6 +437,7 @@ bool Instruction::mayWriteToMemory() const {
case Instruction::VAArg:
case Instruction::AtomicCmpXchg:
case Instruction::AtomicRMW:
case Instruction::CatchPad:
case Instruction::CatchRet:
case Instruction::TerminatePad:
return true;