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Dereference loopHeader after checking for null rather than before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90990 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -404,12 +404,13 @@ bool LoopUnswitch::IsTrivialUnswitchCondition(Value *Cond, Constant **Val,
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bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val){
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initLoopData();
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Function *F = loopHeader->getParent();
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// If LoopSimplify was unable to form a preheader, don't do any unswitching.
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if (!loopPreheader)
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return false;
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Function *F = loopHeader->getParent();
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// If the condition is trivial, always unswitch. There is no code growth for
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// this case.
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if (!IsTrivialUnswitchCondition(LoopCond)) {
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