Add a new function attribute 'cold' to functions.

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

diff --git a/include/llvm/Analysis/BranchProbabilityInfo.h b/include/llvm/Analysis/BranchProbabilityInfo.h
index 6c23f7c3aeb3c074a4b313dadc3444309b4c2ccb..4ff7121728ec487f5e2d81a1e19412fd6bc686ef 100644 (file)
--- a/include/llvm/Analysis/BranchProbabilityInfo.h
+++ b/include/llvm/Analysis/BranchProbabilityInfo.h
@@ -131,11 +131,15 @@ private:
   /// \brief Track the set of blocks directly succeeded by a returning block.
   SmallPtrSet<BasicBlock *, 16> PostDominatedByUnreachable;
 
+  /// \brief Track the set of blocks that always lead to a cold call.
+  SmallPtrSet<BasicBlock *, 16> PostDominatedByColdCall;
+
   /// \brief Get sum of the block successors' weights.
   uint32_t getSumForBlock(const BasicBlock *BB) const;
 
   bool calcUnreachableHeuristics(BasicBlock *BB);
   bool calcMetadataWeights(BasicBlock *BB);
+  bool calcColdCallHeuristics(BasicBlock *BB);
   bool calcPointerHeuristics(BasicBlock *BB);
   bool calcLoopBranchHeuristics(BasicBlock *BB);
   bool calcZeroHeuristics(BasicBlock *BB);