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Use the isReachableFromEntry method.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153400 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2012-03-24 23:29:27 +00:00
parent 858cd1c33c
commit eede6c9075
1 changed files with 1 additions and 3 deletions
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4
include/llvm/Analysis/LoopInfo.h
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@ -772,14 +772,12 @@ public:
LoopT *L = new LoopT(BB); LoopT *L = new LoopT(BB);
BBMap[BB] = L; BBMap[BB] = L;
BlockT *EntryBlock = BB->getParent()->begin();
while (!TodoStack.empty()) { // Process all the nodes in the loop while (!TodoStack.empty()) { // Process all the nodes in the loop
BlockT *X = TodoStack.back(); BlockT *X = TodoStack.back();
TodoStack.pop_back(); TodoStack.pop_back();
if (!L->contains(X) && // As of yet unprocessed?? if (!L->contains(X) && // As of yet unprocessed??
DT.dominates(EntryBlock, X)) { // X is reachable from entry block? DT.isReachableFromEntry(X)) {
// Check to see if this block already belongs to a loop. If this occurs // Check to see if this block already belongs to a loop. If this occurs
// then we have a case where a loop that is supposed to be a child of // then we have a case where a loop that is supposed to be a child of
// the current loop was processed before the current loop. When this // the current loop was processed before the current loop. When this