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authorDan Gohman <gohman@apple.com>2009-09-27 23:43:07 +0000
committerDan Gohman <gohman@apple.com>2009-09-27 23:43:07 +0000
commit9702901a1efb85792c35dc33831583e9e4045cf7 (patch)
tree7035d744d8a770f8a49bc081c9043cd9bd5a3d57 /lib
parent27a8fb8a546ec5d39b057bfe2ee5c36a8e454f09 (diff)
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When a loop is deleted, immediately release all of the active
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
Diffstat (limited to 'lib')
-rw-r--r--lib/Analysis/LoopPass.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index 08615c4..4f7018d 100644
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -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();