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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101248 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -4634,6 +4634,8 @@ ScalarEvolution::HowFarToNonZero(const SCEV *V, const Loop *L) {
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/// getLoopPredecessor - If the given loop's header has exactly one unique
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/// predecessor outside the loop, return it. Otherwise return null.
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/// This is less strict that the loop "preheader" concept, which requires
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/// the predecessor to have only one single successor.
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///
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BasicBlock *ScalarEvolution::getLoopPredecessor(const Loop *L) {
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BasicBlock *Header = L->getHeader();
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