[PATCH] D72815: [BrachProbablityInfo] Add invalidate method.

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea created this revision.
asbirlea added reviewers: Eugene.Zelenko, chandlerc.
Herald added subscribers: sanjoy.google, hiraditya.
Herald added a project: LLVM.

Add invalidate method for BrachProbablityInfo.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D72815

Files:
  llvm/include/llvm/Analysis/BranchProbabilityInfo.h
  llvm/lib/Analysis/BranchProbabilityInfo.cpp


Index: llvm/lib/Analysis/BranchProbabilityInfo.cpp
===================================================================
--- llvm/lib/Analysis/BranchProbabilityInfo.cpp
+++ llvm/lib/Analysis/BranchProbabilityInfo.cpp
@@ -856,6 +856,15 @@
   Probs.clear();
 }
 
+bool BranchProbabilityInfo::invalidate(Function &F, const PreservedAnalyses &PA,
+                                       FunctionAnalysisManager::Invalidator &) {
+  // Check whether the analysis, all analyses on functions, or the function's
+  // CFG have been preserved.
+  auto PAC = PA.getChecker<BranchProbabilityAnalysis>();
+  return !(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Function>>() ||
+           PAC.preservedSet<CFGAnalyses>());
+}
+
 void BranchProbabilityInfo::print(raw_ostream &OS) const {
   OS << "---- Branch Probabilities ----\n";
   // We print the probabilities from the last function the analysis ran over,
Index: llvm/include/llvm/Analysis/BranchProbabilityInfo.h
===================================================================
--- llvm/include/llvm/Analysis/BranchProbabilityInfo.h
+++ llvm/include/llvm/Analysis/BranchProbabilityInfo.h
@@ -75,6 +75,9 @@
     return *this;
   }
 
+  bool invalidate(Function &F, const PreservedAnalyses &PA,
+                  FunctionAnalysisManager::Invalidator &);
+
   void releaseMemory();
 
   void print(raw_ostream &OS) const;


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