[llvm] 6dd17a2 - [CallGraph] Don't preserve CallGraph when function CFG analyses are preserved

[Arthur Eubanks via llvm-commits]

Author: Arthur Eubanks
Date: 2022-06-19T13:01:08-07:00
New Revision: 6dd17a2b3403adeef74217e2f23f00fe656d38d1

URL: https://github.com/llvm/llvm-project/commit/6dd17a2b3403adeef74217e2f23f00fe656d38d1
DIFF: https://github.com/llvm/llvm-project/commit/6dd17a2b3403adeef74217e2f23f00fe656d38d1.diff

LOG: [CallGraph] Don't preserve CallGraph when function CFG analyses are preserved

The call graph has nothing to with function CFGs.

Fixes a crash in a future change that exposes this bug.

Added: 
    

Modified: 
    llvm/lib/Analysis/CallGraph.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/CallGraph.cpp b/llvm/lib/Analysis/CallGraph.cpp
index 1a73dad23f83..f85527122b2a 100644
--- a/llvm/lib/Analysis/CallGraph.cpp
+++ b/llvm/lib/Analysis/CallGraph.cpp
@@ -69,8 +69,7 @@ bool CallGraph::invalidate(Module &, const PreservedAnalyses &PA,
   // 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>());
+  return !(PAC.preserved() || PAC.preservedSet<AllAnalysesOn<Module>>());
 }
 
 void CallGraph::addToCallGraph(Function *F) {