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Cleanup. Another thorough review by Nick!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137317 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2011-08-11 17:54:58 +00:00
parent f8fce711e8
commit 5c1ff1f2f2
1 changed files with 6 additions and 6 deletions
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12
lib/Analysis/LoopInfo.cpp
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@ -471,8 +471,8 @@ void UnloopUpdater::updateBlockParents() {
/// nested within unloop.
void UnloopUpdater::updateSubloopParents() {
while (!Unloop->empty()) {
Loop *Subloop = *(Unloop->end()-1);
Unloop->removeChildLoop(Unloop->end()-1);
Loop *Subloop = *llvm::prior(Unloop->end());
Unloop->removeChildLoop(llvm::prior(Unloop->end()));
assert(SubloopParents.count(Subloop) && "DFS failed to visit subloop");
if (SubloopParents[Subloop])
@ -487,8 +487,8 @@ void UnloopUpdater::updateSubloopParents() {
/// For subloop blocks, simply update SubloopParents and return NULL.
Loop *UnloopUpdater::getNearestLoop(BasicBlock *BB, Loop *BBLoop) {
// Initialy for blocks directly contained by Unloop, NearLoop == Unloop and is
// considered uninitialized.
// Initially for blocks directly contained by Unloop, NearLoop == Unloop and
// is considered uninitialized.
Loop *NearLoop = BBLoop;
Loop *Subloop = 0;
@ -562,7 +562,7 @@ bool LoopInfo::runOnFunction(Function &) {
/// updateUnloop - The last backedge has been removed from a loop--now the
/// "unloop". Find a new parent for the blocks contained within unloop and
/// update the loop tree. We don't necessarilly have valid dominators at this
/// update the loop tree. We don't necessarily have valid dominators at this
/// point, but LoopInfo is still valid except for the removal of this loop.
///
/// Note that Unloop may now be an empty loop. Calling Loop::getHeader without
@ -595,7 +595,7 @@ void LoopInfo::updateUnloop(Loop *Unloop) {
// Move all of the subloops to the top-level.
while (!Unloop->empty())
LI.addTopLevelLoop(Unloop->removeChildLoop(Unloop->end()-1));
LI.addTopLevelLoop(Unloop->removeChildLoop(llvm::prior(Unloop->end())));
return;
}