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When a loop is deleted, immediately release all of the active

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LoopPasses for that loop. This avoids trouble with the PassManager
trying to call verifyAnalysis on them, and frees up some memory
sooner rather than later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82945 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-09-27 23:43:07 +00:00
parent 27a8fb8a54
commit 9702901a1e
1 changed files with 9 additions and 0 deletions
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9
lib/Analysis/LoopPass.cpp
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@ -253,6 +253,15 @@ bool LPPassManager::runOnFunction(Function &F) {
break;
}
// If the loop was deleted, release all the loop passes. This frees up
// some memory, and avoids trouble with the pass manager trying to call
// verifyAnalysis on them.
if (skipThisLoop)
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
Pass *P = getContainedPass(Index);
freePass(P, "", ON_LOOP_MSG);
}
// Pop the loop from queue after running all passes.
LQ.pop_back();