void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const
{
- AU.setPreservesAll();
+ AU.addPreserved<LiveVariables>();
AU.addRequired<LiveVariables>();
+ AU.addPreservedID(PHIEliminationID);
AU.addRequiredID(PHIEliminationID);
MachineFunctionPass::getAnalysisUsage(AU);
}