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RecursivelyDeleteTriviallyDeadInstructions only needs a

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Value, not an Instruction, so casting is not necessary. Also,
it's theoretically possible that the Value is not an
Instruction, since WeakVH follows RAUWs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127427 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2011-03-10 20:57:44 +00:00
parent 9d2234d6a0
commit c9f2f61d34
1 changed files with 2 additions and 3 deletions
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5
lib/Transforms/Scalar/Reassociate.cpp
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@ -1097,9 +1097,8 @@ bool Reassociate::runOnFunction(Function &F) {
// Now that we're done, delete any instructions which are no longer used.
while (!DeadInsts.empty())
if (Instruction *Inst =
cast_or_null<Instruction>((Value *)DeadInsts.pop_back_val()))
RecursivelyDeleteTriviallyDeadInstructions(Inst);
if (Value *V = DeadInsts.pop_back_val())
RecursivelyDeleteTriviallyDeadInstructions(V);
// We are done with the rank map.
RankMap.clear();