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| author | Andrew Trick <atrick@apple.com> | 2011-10-07 06:33:09 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-10-07 06:33:09 +0000 |
| commit | e8deca83c157999062b4894163fd6b5023c5cf91 (patch) | |
| tree | 591e252bc3bd943e61f515231ad42c6cfcd13b27 /lib/CodeGen/ScheduleDAGInstrs.h | |
| parent | 4563bbaba7fad4403acf0236cbd75805c68f2a90 (diff) | |
| download | llvm-e8deca83c157999062b4894163fd6b5023c5cf91.tar.gz llvm-e8deca83c157999062b4894163fd6b5023c5cf91.tar.bz2 llvm-e8deca83c157999062b4894163fd6b5023c5cf91.tar.xz | |
PostRA scheduler fix. Clear stale loop dependencies.
Fixes <rdar://problem/10235725>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141357 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ScheduleDAGInstrs.h')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.h b/lib/CodeGen/ScheduleDAGInstrs.h index 6e672f4b72..666bdf548c 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.h +++ b/lib/CodeGen/ScheduleDAGInstrs.h @@ -48,7 +48,8 @@ namespace llvm { /// VisitLoop - Clear out any previous state and analyze the given loop. /// void VisitLoop(const MachineLoop *Loop) { - Deps.clear(); + assert(Deps.empty() && "stale loop dependencies"); + MachineBasicBlock *Header = Loop->getHeader(); SmallSet<unsigned, 8> LoopLiveIns; for (MachineBasicBlock::livein_iterator LI = Header->livein_begin(), |