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The "landingpad" instruction will never be "trivially" dead.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137642 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-08-15 20:10:51 +00:00
parent 5df7ef6cdb
commit 187b1924a4
1 changed files with 4 additions and 0 deletions
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4
lib/Transforms/Utils/Local.cpp
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@ -226,6 +226,10 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions) {
bool llvm::isInstructionTriviallyDead(Instruction *I) {
if (!I->use_empty() || isa<TerminatorInst>(I)) return false;
// We don't want the landingpad instruction removed by anything this general.
if (isa<LandingPadInst>(I))
return false;
// We don't want debug info removed by anything this general, unless
// debug info is empty.
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I)) {