diff options
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 285085801b..2bd9fabb81 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -45,8 +45,9 @@ namespace { void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const { - AU.setPreservesAll(); + AU.addPreserved<LiveVariables>(); AU.addRequired<LiveVariables>(); + AU.addPreservedID(PHIEliminationID); AU.addRequiredID(PHIEliminationID); MachineFunctionPass::getAnalysisUsage(AU); } |