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Require IVUsers after LCSSA, since LCSSA does not preserve IVUsers. 

This results in the pass manager running IVUsers only once for
indvars, instead of twice.

llvm-svn: 75633
This commit is contained in:
Dan Gohman 2009-07-14 14:26:23 +00:00
parent 92b4c7f355
commit e141364e5c
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -82,15 +82,15 @@ namespace {
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<DominatorTree>();
AU.addRequired<LoopInfo>();
AU.addRequired<ScalarEvolution>();
AU.addRequiredID(LoopSimplifyID);
AU.addRequired<LoopInfo>();
AU.addRequired<IVUsers>();
AU.addRequiredID(LCSSAID);
AU.addRequired<IVUsers>();
AU.addPreserved<ScalarEvolution>();
AU.addPreservedID(LoopSimplifyID);
AU.addPreserved<IVUsers>();
AU.addPreservedID(LCSSAID);
AU.addPreserved<IVUsers>();
AU.setPreservesCFG();
}