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llvm-svn: 101248
This commit is contained in:
Dan Gohman 2010-04-14 16:08:56 +00:00
parent d044ebe427
commit a71d62f6e4
1 changed files with 2 additions and 0 deletions
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lib/Analysis/ScalarEvolution.cpp
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@ -4634,6 +4634,8 @@ ScalarEvolution::HowFarToNonZero(const SCEV *V, const Loop *L) {
/// getLoopPredecessor - If the given loop's header has exactly one unique
/// predecessor outside the loop, return it. Otherwise return null.
/// This is less strict that the loop "preheader" concept, which requires
/// the predecessor to have only one single successor.
///
BasicBlock *ScalarEvolution::getLoopPredecessor(const Loop *L) {
BasicBlock *Header = L->getHeader();