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Minor tweak

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3985 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-09-29 22:59:29 +00:00
parent 76e51a87e7
commit c8f25d91bd
1 changed files with 3 additions and 2 deletions
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5
lib/Analysis/LoopInfo.cpp
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@ -147,8 +147,9 @@ BasicBlock *Loop::getLoopPreheader() const {
BasicBlock *Header = getHeader();
for (pred_iterator PI = pred_begin(Header), PE = pred_end(Header);
PI != PE; ++PI)
if (!contains(*PI)) { // If the block is not in the loop...
if (Out) return 0; // Multiple predecessors outside the loop
if (!contains(*PI)) { // If the block is not in the loop...
if (Out && Out != *PI)
return 0; // Multiple predecessors outside the loop
Out = *PI;
}