Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT

preserve livevar

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index bac4b70d75b2409c67f27ccd4610801e91a75cda..25642263b0d88512767b4ec5049b280880d2218b 100644 (file)
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -62,7 +62,6 @@ namespace {
 
 void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const
 {
-  AU.addPreserved<LiveVariables>();
   AU.addRequired<LiveVariables>();
   AU.addPreservedID(PHIEliminationID);
   AU.addRequiredID(PHIEliminationID);