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Move the personality function from LandingPadInst to Function

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The personality routine currently lives in the LandingPadInst.

This isn't desirable because:
- All LandingPadInsts in the same function must have the same
  personality routine.  This means that each LandingPadInst beyond the
  first has an operand which produces no additional information.

- There is ongoing work to introduce EH IR constructs other than
  LandingPadInst.  Moving the personality routine off of any one
  particular Instruction and onto the parent function seems a lot better
  than have N different places a personality function can sneak onto an
  exceptional function.

Differential Revision: http://reviews.llvm.org/D10429

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer
2015-06-17 20:52:32 +00:00
parent 4412d4b51f
commit cc714e2142
313 changed files with 1350 additions and 1258 deletions
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5
lib/Analysis/LibCallSemantics.cpp
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@@ -80,9 +80,8 @@ EHPersonality llvm::classifyEHPersonality(const Value *Pers) {
.Default(EHPersonality::Unknown);
}
bool llvm::canSimplifyInvokeNoUnwind(const InvokeInst *II) {
const LandingPadInst *LP = II->getLandingPadInst();
EHPersonality Personality = classifyEHPersonality(LP->getPersonalityFn());
bool llvm::canSimplifyInvokeNoUnwind(const Function *F) {
EHPersonality Personality = classifyEHPersonality(F->getPersonalityFn());
// We can't simplify any invokes to nounwind functions if the personality
// function wants to catch asynch exceptions. The nounwind attribute only
// implies that the function does not throw synchronous exceptions.