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Use setPreservesAll and setPreservesCFG in CodeGen passes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77754 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-07-31 23:37:33 +00:00
parent a3477fe06d
commit 845012e6d3
17 changed files with 31 additions and 14 deletions
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lib/CodeGen/LiveIntervalAnalysis.cpp
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@@ -67,6 +67,7 @@ char LiveIntervals::ID = 0;
static RegisterPass<LiveIntervals> X("liveintervals", "Live Interval Analysis");
void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<AliasAnalysis>();
AU.addPreserved<AliasAnalysis>();
AU.addPreserved<LiveVariables>();