void UnifyFunctionExitNodes::getAnalysisUsage(AnalysisUsage &AU) const{
// We preserve the non-critical-edgeness property
AU.addPreservedID(BreakCriticalEdgesID);
// This is a cluster of orthogonal Transforms
AU.addPreserved("mem2reg");
AU.addPreservedID(LowerSwitchID);
}
void MachineModulePass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<MachineFunctionAnalysis>();
// MachineModulePass preserves all LLVM IR passes, but there's no
// high-level way to express this. Instead, just list a bunch of
// passes explicitly. This does not include setPreservesCFG,
// because CodeGen overloads that to mean preserving the MachineBasicBlock
// CFG in addition to the LLVM IR CFG.
AU.addPreserved<AliasAnalysis>();
AU.addPreserved("scalar-evolution");
AU.addPreserved("iv-users");
AU.addPreserved("memdep");
AU.addPreserved("live-values");
AU.addPreserved("domtree");
AU.addPreserved("domfrontier");
AU.addPreserved("loops");
AU.addPreserved("lda");
ModulePass::getAnalysisUsage(AU);
}
