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Add that this preserves some analyses.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2008-01-04 08:48:49 +00:00
parent cc8f603f53
commit d5da7048c2
1 changed files with 3 additions and 1 deletions
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4
lib/CodeGen/MachineLICM.cpp
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@ -53,10 +53,12 @@ namespace {
/// FIXME: Loop preheaders?
///
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
MachineFunctionPass::getAnalysisUsage(AU);
AU.setPreservesCFG();
AU.addRequired<MachineLoopInfo>();
AU.addRequired<MachineDominatorTree>();
AU.addPreserved<MachineLoopInfo>();
AU.addPreserved<MachineDominatorTree>();
MachineFunctionPass::getAnalysisUsage(AU);
}
private:
/// VisitAllLoops - Visit all of the loops in depth first order and try to