From 25101bb2a799a36be9f077ee2fc2dcf0df2b6efb Mon Sep 17 00:00:00 2001 From: Jakub Staszak Date: Tue, 20 Dec 2011 20:03:10 +0000 Subject: Add some constantness to BranchProbabilityInfo and BlockFrequnencyInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146986 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/CodeGen/MachineBasicBlock.h | 4 +++- include/llvm/CodeGen/MachineBlockFrequencyInfo.h | 2 +- include/llvm/CodeGen/MachineBranchProbabilityInfo.h | 5 +++-- 3 files changed, 7 insertions(+), 4 deletions(-) (limited to 'include/llvm/CodeGen') diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h index d32690bee9..3c9563fb81 100644 --- a/include/llvm/CodeGen/MachineBasicBlock.h +++ b/include/llvm/CodeGen/MachineBasicBlock.h @@ -77,6 +77,7 @@ class MachineBasicBlock : public ilist_node { /// (disable optimization). std::vector Weights; typedef std::vector::iterator weight_iterator; + typedef std::vector::const_iterator const_weight_iterator; /// LiveIns - Keep track of the physical registers that are livein of /// the basicblock. @@ -589,13 +590,14 @@ private: /// getWeightIterator - Return weight iterator corresponding to the I /// successor iterator. weight_iterator getWeightIterator(succ_iterator I); + const_weight_iterator getWeightIterator(const_succ_iterator I) const; friend class MachineBranchProbabilityInfo; /// getSuccWeight - Return weight of the edge from this block to MBB. This /// method should NOT be called directly, but by using getEdgeWeight method /// from MachineBranchProbabilityInfo class. - uint32_t getSuccWeight(MachineBasicBlock *succ); + uint32_t getSuccWeight(const MachineBasicBlock *succ) const; // Methods used to maintain doubly linked list of blocks... diff --git a/include/llvm/CodeGen/MachineBlockFrequencyInfo.h b/include/llvm/CodeGen/MachineBlockFrequencyInfo.h index 3d9d196a75..a9c7bf7dbc 100644 --- a/include/llvm/CodeGen/MachineBlockFrequencyInfo.h +++ b/include/llvm/CodeGen/MachineBlockFrequencyInfo.h @@ -48,7 +48,7 @@ public: /// that we should not rely on the value itself, but only on the comparison to /// the other block frequencies. We do this to avoid using of floating points. /// - BlockFrequency getBlockFreq(MachineBasicBlock *MBB) const; + BlockFrequency getBlockFreq(const MachineBasicBlock *MBB) const; }; } diff --git a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h index 4a10bc326f..af4db7d6bd 100644 --- a/include/llvm/CodeGen/MachineBranchProbabilityInfo.h +++ b/include/llvm/CodeGen/MachineBranchProbabilityInfo.h @@ -49,12 +49,13 @@ public: // Return edge weight. If we don't have any informations about it - return // DEFAULT_WEIGHT. - uint32_t getEdgeWeight(MachineBasicBlock *Src, MachineBasicBlock *Dst) const; + uint32_t getEdgeWeight(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(MachineBasicBlock *MBB, uint32_t &Scale) const; + uint32_t getSumForBlock(const MachineBasicBlock *MBB, uint32_t &Scale) const; // A 'Hot' edge is an edge which probability is >= 80%. bool isEdgeHot(MachineBasicBlock *Src, MachineBasicBlock *Dst) const; -- cgit v1.2.3-70-g09d2