diff options
Diffstat (limited to 'include/llvm/Analysis/BranchProbabilityInfo.h')
| -rw-r--r-- | include/llvm/Analysis/BranchProbabilityInfo.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/llvm/Analysis/BranchProbabilityInfo.h b/include/llvm/Analysis/BranchProbabilityInfo.h index 02ead98..a2c12ab 100644 --- a/include/llvm/Analysis/BranchProbabilityInfo.h +++ b/include/llvm/Analysis/BranchProbabilityInfo.h @@ -33,12 +33,12 @@ class BranchProbabilityInfo : public FunctionPass { // weight to just "inherit" the non-zero weight of an adjacent successor. static const uint32_t DEFAULT_WEIGHT = 16; - typedef std::pair<BasicBlock *, BasicBlock *> Edge; + typedef std::pair<const BasicBlock *, const BasicBlock *> Edge; DenseMap<Edge, uint32_t> Weights; // Get sum of the block successors' weights. - uint32_t getSumForBlock(BasicBlock *BB) const; + uint32_t getSumForBlock(const BasicBlock *BB) const; public: static char ID; @@ -53,13 +53,14 @@ public: // Returned value is between 1 and UINT32_MAX. Look at // BranchProbabilityInfo.cpp for details. - uint32_t getEdgeWeight(BasicBlock *Src, BasicBlock *Dst) const; + uint32_t getEdgeWeight(const BasicBlock *Src, const BasicBlock *Dst) const; // Look at BranchProbabilityInfo.cpp for details. Use it with caution! - void setEdgeWeight(BasicBlock *Src, BasicBlock *Dst, uint32_t Weight); + void setEdgeWeight(const BasicBlock *Src, const BasicBlock *Dst, + uint32_t Weight); // A 'Hot' edge is an edge which probability is >= 80%. - bool isEdgeHot(BasicBlock *Src, BasicBlock *Dst) const; + bool isEdgeHot(const BasicBlock *Src, const BasicBlock *Dst) const; // Return a hot successor for the block BB or null if there isn't one. BasicBlock *getHotSucc(BasicBlock *BB) const; @@ -67,7 +68,8 @@ public: // 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. - BranchProbability getEdgeProbability(BasicBlock *Src, BasicBlock *Dst) const; + BranchProbability getEdgeProbability(const BasicBlock *Src, + const BasicBlock *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 |
