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LICM: Hoist insertvalue/extractvalue out of loops.

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Fixes PR14854.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171984 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2013-01-09 18:12:03 +00:00
parent 12cd49ae1d
commit d9cc865787
2 changed files with 32 additions and 7 deletions
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13
lib/Transforms/Scalar/LICM.cpp
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@@ -440,13 +440,12 @@ bool LICM::canSinkOrHoistInst(Instruction &I) {
}
// Only these instructions are hoistable/sinkable.
bool HoistableKind = (isa<BinaryOperator>(I) || isa<CastInst>(I) ||
isa<SelectInst>(I) || isa<GetElementPtrInst>(I) ||
isa<CmpInst>(I) || isa<InsertElementInst>(I) ||
isa<ExtractElementInst>(I) ||
isa<ShuffleVectorInst>(I));
if (!HoistableKind)
return false;
if (!isa<BinaryOperator>(I) && !isa<CastInst>(I) && !isa<SelectInst>(I) &&
!isa<GetElementPtrInst>(I) && !isa<CmpInst>(I) &&
!isa<InsertElementInst>(I) && !isa<ExtractElementInst>(I) &&
!isa<ShuffleVectorInst>(I) && !isa<ExtractValueInst>(I) &&
!isa<InsertValueInst>(I))
return false;
return isSafeToExecuteUnconditionally(I);
}