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Fix a memory leak in the hexagon scheduler. We call initialize here more

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than once, and the second time through we leaked memory. Found thanks to
the vg-leak bot, but I can't locally reproduce it with valgrind. The
debugger confirms that it is in fact leaking here.

This whole code is totally gross. Why is initialize being called on each
runOnFunction??? Why aren't these OwningPtr<>s, and why aren't their
lifetimes better defined? Anyways, this is just a surgical change to
help out the leak checking bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2013-07-27 10:48:45 +00:00
parent 89934cbd34
commit 37886438dd
1 changed files with 2 additions and 0 deletions
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2
lib/Target/Hexagon/HexagonMachineScheduler.cpp
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@ -208,6 +208,8 @@ void ConvergingVLIWScheduler::initialize(ScheduleDAGMI *dag) {
Top.HazardRec = TM.getInstrInfo()->CreateTargetMIHazardRecognizer(Itin, DAG);
Bot.HazardRec = TM.getInstrInfo()->CreateTargetMIHazardRecognizer(Itin, DAG);
delete Top.ResourceModel;
delete Bot.ResourceModel;
Top.ResourceModel = new VLIWResourceModel(TM, DAG->getSchedModel());
Bot.ResourceModel = new VLIWResourceModel(TM, DAG->getSchedModel());