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Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89844 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -296,6 +296,7 @@ static bool isTrivialLoopExitBlockHelper(Loop *L, BasicBlock *BB,
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// first exit.
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if (ExitBB != 0) return false;
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ExitBB = BB;
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return true;
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}
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// Otherwise, this is an unvisited intra-loop node. Check all successors.
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@ -1,24 +0,0 @@
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; RUN: opt < %s -loop-unswitch -stats -disable-output |& grep "3 loop-unswitch - Number of branches unswitched"
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define noalias i32* @func_16(i32** %p_18, i32* %p_20) noreturn nounwind ssp {
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entry:
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%lnot = icmp eq i32** %p_18, null ; <i1> [#uses=1]
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%lnot6 = icmp eq i32* %p_20, null ; <i1> [#uses=1]
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br label %for.body
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for.body: ; preds = %cond.end, %entry
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br i1 %lnot, label %cond.end, label %cond.true
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cond.true: ; preds = %for.body
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tail call void @f()
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unreachable
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cond.end: ; preds = %for.body
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br i1 %lnot6, label %for.body, label %cond.true10
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cond.true10: ; preds = %cond.end
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tail call void @f()
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unreachable
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}
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declare void @f() noreturn
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