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Reapply my 6/9 changes. The bug Evan saw no longer occurs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28759 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -73,6 +73,8 @@ namespace {
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AU.addPreservedID(LoopSimplifyID);
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AU.addRequired<LoopInfo>();
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AU.addPreserved<LoopInfo>();
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AU.addRequiredID(LCSSAID);
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AU.addPreservedID(LCSSAID);
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}
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private:
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@ -154,6 +156,8 @@ static Value *FindLIVLoopCondition(Value *Cond, Loop *L, bool &Changed) {
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}
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bool LoopUnswitch::visitLoop(Loop *L) {
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assert(L->isLCSSAForm());
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bool Changed = false;
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// Loop over all of the basic blocks in the loop. If we find an interior
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@ -198,7 +202,9 @@ bool LoopUnswitch::visitLoop(Loop *L) {
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}
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}
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}
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assert(L->isLCSSAForm());
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return Changed;
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}
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