Use getEdgeProbability() instead of getEdgeWeight() in BFI and remove getEdgeWeight...

[oota-llvm.git] / include / llvm / CodeGen / MachineBranchProbabilityInfo.h

diff --git a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
index 058ab32f3aa993683b0edaf6ee2cdcd7949bfe13..81b0524cf0a4d44e0bfa9a1cb8ad52475b0aed4d 100644 (file)
--- a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
+++ b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h
@@ -45,20 +45,15 @@ public:
     AU.setPreservesAll();
   }
 
-  // Return edge weight. If we don't have any informations about it - return
-  // DEFAULT_WEIGHT.
-  uint32_t getEdgeWeight(const MachineBasicBlock *Src,
-                         const MachineBasicBlock *Dst) const;
-
-  // Same thing, but using a const_succ_iterator from Src. This is faster when
-  // the iterator is already available.
-  uint32_t getEdgeWeight(const MachineBasicBlock *Src,
-                         MachineBasicBlock::const_succ_iterator Dst) const;
+  // Return edge probability.
+  BranchProbability getEdgeProbability(const MachineBasicBlock *Src,
+                                       const MachineBasicBlock *Dst) const;
 
-  // Get sum of the block successors' weights, potentially scaling them to fit
-  // within 32-bits. If scaling is required, sets Scale based on the necessary
-  // adjustment. Any edge weights used with the sum should be divided by Scale.
-  uint32_t getSumForBlock(const MachineBasicBlock *MBB, uint32_t &Scale) const;
+  // Same as above, but using a const_succ_iterator from Src. This is faster
+  // when the iterator is already available.
+  BranchProbability
+  getEdgeProbability(const MachineBasicBlock *Src,
+                     MachineBasicBlock::const_succ_iterator Dst) const;
 
   // A 'Hot' edge is an edge which probability is >= 80%.
   bool isEdgeHot(const MachineBasicBlock *Src,
@@ -68,15 +63,6 @@ public:
   // NB: This routine's complexity is linear on the number of successors.
   MachineBasicBlock *getHotSucc(MachineBasicBlock *MBB) const;
 
-  // Return a probability as a fraction between 0 (0% probability) and
-  // 1 (100% probability), however the value is never equal to 0, and can be 1
-  // only iff SRC block has only one successor.
-  // NB: This routine's complexity is linear on the number of successors of
-  // Src. Querying sequentially for each successor's probability is a quadratic
-  // query pattern.
-  BranchProbability getEdgeProbability(const MachineBasicBlock *Src,
-                                       const MachineBasicBlock *Dst) const;
-
   // Print value between 0 (0% probability) and 1 (100% probability),
   // however the value is never equal to 0, and can be 1 only iff SRC block
   // has only one successor.