TLI: Add addVectorizableFunctionsFromVecLib.

[oota-llvm.git] / include / llvm / Analysis / BranchProbabilityInfo.h

diff --git a/include/llvm/Analysis/BranchProbabilityInfo.h b/include/llvm/Analysis/BranchProbabilityInfo.h
index 4a6a280d0c8ca8b5a023bd62ad811a47a714a1c7..89eef68d84316890baef9e632e03220b48f48b02 100644 (file)
--- a/include/llvm/Analysis/BranchProbabilityInfo.h
+++ b/include/llvm/Analysis/BranchProbabilityInfo.h
@@ -47,7 +47,7 @@ public:
 
   void getAnalysisUsage(AnalysisUsage &AU) const override;
   bool runOnFunction(Function &F) override;
-  void print(raw_ostream &OS, const Module *M = 0) const override;
+  void print(raw_ostream &OS, const Module *M = nullptr) const override;
 
   /// \brief Get an edge's probability, relative to other out-edges of the Src.
   ///
@@ -111,6 +111,10 @@ public:
   void setEdgeWeight(const BasicBlock *Src, unsigned IndexInSuccessors,
                      uint32_t Weight);
 
+  static uint32_t getBranchWeightStackProtector(bool IsLikely) {
+    return IsLikely ? (1u << 20) - 1 : 1;
+  }
+
 private:
   // Since we allow duplicate edges from one basic block to another, we use
   // a pair (PredBlock and an index in the successors) to specify an edge.