[llvm] r302308 - Override invalidate of ProfileSummaryInfo to return false.

[Easwaran Raman via llvm-commits]

Author: eraman
Date: Fri May  5 17:15:09 2017
New Revision: 302308

URL: http://llvm.org/viewvc/llvm-project?rev=302308&view=rev
Log:
Override invalidate of ProfileSummaryInfo to return false.

Differential revision: https://reviews.llvm.org/D32775

Modified:
    llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h

Modified: llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h?rev=302308&r1=302307&r2=302308&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h (original)
+++ llvm/trunk/include/llvm/Analysis/ProfileSummaryInfo.h Fri May  5 17:15:09 2017
@@ -54,6 +54,18 @@ public:
   ProfileSummaryInfo(Module &M) : M(M) {}
   ProfileSummaryInfo(ProfileSummaryInfo &&Arg)
       : M(Arg.M), Summary(std::move(Arg.Summary)) {}
+
+  /// Handle the invalidation of this information.
+  ///
+  /// When used as a result of \c ProfileSummaryAnalysis this method will be
+  /// called when the module this was computed for changes. Since profile
+  /// summary is immutable after it is annotated on the module, we return false
+  /// here.
+  bool invalidate(Module &, const PreservedAnalyses &,
+                  ModuleAnalysisManager::Invalidator &) {
+    return false;
+  }
+
   /// Returns the profile count for \p CallInst.
   static Optional<uint64_t> getProfileCount(const Instruction *CallInst,
                                             BlockFrequencyInfo *BFI);