[llvm] 630a801 - [CallGraph] Add invalidate method.

[Alina Sbirlea via llvm-commits]

Author: Alina Sbirlea
Date: 2020-01-17T10:47:51-08:00
New Revision: 630a8011e468fb82e546e4aae3ade5984fbfa208

URL: https://github.com/llvm/llvm-project/commit/630a8011e468fb82e546e4aae3ade5984fbfa208
DIFF: https://github.com/llvm/llvm-project/commit/630a8011e468fb82e546e4aae3ade5984fbfa208.diff

LOG: [CallGraph]  Add invalidate method.

Summary: Add invalidate method in CallGraph.

Reviewers: Eugene.Zelenko, chandlerc

Subscribers: hiraditya, sanjoy.google, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72816

Added: 
    

Modified: 
    llvm/include/llvm/Analysis/CallGraph.h
    llvm/lib/Analysis/CallGraph.cpp

Removed: 
    


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diff  --git a/llvm/include/llvm/Analysis/CallGraph.h b/llvm/include/llvm/Analysis/CallGraph.h
index 7a10183c4d91..c148950cd427 100644
--- a/llvm/include/llvm/Analysis/CallGraph.h
+++ b/llvm/include/llvm/Analysis/CallGraph.h
@@ -112,6 +112,9 @@ class CallGraph {
   /// Returns the module the call graph corresponds to.
   Module &getModule() const { return M; }
 
+  bool invalidate(Module &, const PreservedAnalyses &PA,
+                  ModuleAnalysisManager::Invalidator &);
+
   inline iterator begin() { return FunctionMap.begin(); }
   inline iterator end() { return FunctionMap.end(); }
   inline const_iterator begin() const { return FunctionMap.begin(); }

diff  --git a/llvm/lib/Analysis/CallGraph.cpp b/llvm/lib/Analysis/CallGraph.cpp
index 8e8a50178518..99cdf3f0db6c 100644
--- a/llvm/lib/Analysis/CallGraph.cpp
+++ b/llvm/lib/Analysis/CallGraph.cpp
@@ -57,6 +57,15 @@ CallGraph::~CallGraph() {
 #endif
 }
 
+bool CallGraph::invalidate(Module &, const PreservedAnalyses &PA,
+                           ModuleAnalysisManager::Invalidator &) {
+  // Check whether the analysis, all analyses on functions, or the function's
+  // CFG have been preserved.
+  auto PAC = PA.getChecker<CallGraphAnalysis>();
+  return !(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Module>>() ||
+           PAC.preservedSet<CFGAnalyses>());
+}
+
 void CallGraph::addToCallGraph(Function *F) {
   CallGraphNode *Node = getOrInsertFunction(F);