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Add simplify_type<const WeakVH>; simplify IndVarSimplify
r240214 fixed some UB in IndVarSimplify, and it needed a temporary `WeakVH` to do it. Add `simplify_type<const WeakVH>` so that this temporary isn't necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240599 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -2013,11 +2013,10 @@ bool IndVarSimplify::runOnLoop(Loop *L, LPPassManager &LPM) {
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// Now that we're done iterating through lists, clean up any instructions
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// which are now dead.
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while (!DeadInsts.empty()) {
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Value *V = static_cast<Value *>(DeadInsts.pop_back_val());
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if (Instruction *Inst = dyn_cast_or_null<Instruction>(V))
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while (!DeadInsts.empty())
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if (Instruction *Inst =
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dyn_cast_or_null<Instruction>(DeadInsts.pop_back_val()))
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RecursivelyDeleteTriviallyDeadInstructions(Inst, TLI);
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}
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// The Rewriter may not be used from this point on.
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