Vendor import of llvm trunk r300422:vendor/llvm/llvm-trunk-r300422

https://llvm.org/svn/llvm-project/llvm/trunk@300422

1 files changed, 10 insertions, 0 deletions

diff --git a/include/llvm/Analysis/BlockFrequencyInfo.h b/include/llvm/Analysis/BlockFrequencyInfo.h
index 562041d11fa1..cbae01c9102f 100644
--- a/include/llvm/Analysis/BlockFrequencyInfo.h
+++ b/include/llvm/Analysis/BlockFrequencyInfo.h
@@ -45,6 +45,10 @@ public:
 
   ~BlockFrequencyInfo();
 
+  /// Handle invalidation explicitly.
+  bool invalidate(Function &F, const PreservedAnalyses &PA,
+                  FunctionAnalysisManager::Invalidator &);
+
   const Function *getFunction() const;
   const BranchProbabilityInfo *getBPI() const;
   void view() const;
@@ -69,6 +73,12 @@ public:
   // Set the frequency of the given basic block.
   void setBlockFreq(const BasicBlock *BB, uint64_t Freq);
 
+  /// Set the frequency of \p ReferenceBB to \p Freq and scale the frequencies
+  /// of the blocks in \p BlocksToScale such that their frequencies relative
+  /// to \p ReferenceBB remain unchanged.
+  void setBlockFreqAndScale(const BasicBlock *ReferenceBB, uint64_t Freq,
+                            SmallPtrSetImpl<BasicBlock *> &BlocksToScale);
+
   /// calculate - compute block frequency info for the given function.
   void calculate(const Function &F, const BranchProbabilityInfo &BPI,
                  const LoopInfo &LI);