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| author | Evan Cheng <evan.cheng@apple.com> | 2010-08-17 20:57:42 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-08-17 20:57:42 +0000 |
| commit | b0211714be731bdd6e9eb090e90e0d8146a377a7 (patch) | |
| tree | 637ea8dd812a8f3053c25add68446476b8765f18 /lib/CodeGen | |
| parent | 373707e4c4b55e7ec34f792a99387b837567468c (diff) | |
| download | external_llvm-b0211714be731bdd6e9eb090e90e0d8146a377a7.zip external_llvm-b0211714be731bdd6e9eb090e90e0d8146a377a7.tar.gz external_llvm-b0211714be731bdd6e9eb090e90e0d8146a377a7.tar.bz2 | |
Machine CSE preserves CFG. Pass manager was freeing machineloopinfo after machine cse before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111281 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index 60642d4..92e2299 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -49,6 +49,7 @@ namespace { AU.setPreservesCFG(); MachineFunctionPass::getAnalysisUsage(AU); AU.addRequired<AliasAnalysis>(); + AU.addPreservedID(MachineLoopInfoID); AU.addRequired<MachineDominatorTree>(); AU.addPreserved<MachineDominatorTree>(); } |