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Don't try to sink the landingpad instruction. It's immobile.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137629 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-08-15 18:23:40 +00:00
parent da005e7d20
commit 06f20ebfcf
1 changed files with 3 additions and 2 deletions
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5
lib/Transforms/InstCombine/InstructionCombining.cpp
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@ -1417,8 +1417,9 @@ Instruction *InstCombiner::visitExtractValueInst(ExtractValueInst &EV) {
static bool TryToSinkInstruction(Instruction *I, BasicBlock *DestBlock) {
assert(I->hasOneUse() && "Invariants didn't hold!");
// Cannot move control-flow-involving, volatile loads, vaarg, etc.
if (isa<PHINode>(I) || I->mayHaveSideEffects() || isa<TerminatorInst>(I))
// Cannot move control-flow-involving, volatile loads, vaarg, landingpad, etc.
if (isa<PHINode>(I) || isa<LandingPadInst>(I) || I->mayHaveSideEffects() ||
isa<TerminatorInst>(I))
return false;
// Do not sink alloca instructions out of the entry block.