diff options
Diffstat (limited to 'lib/CodeGen/MachineBasicBlock.cpp')
-rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 673491608d..b4a2ca1894 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -870,11 +870,11 @@ MachineBasicBlock::findDebugLoc(instr_iterator MBBI) { /// getSuccWeight - Return weight of the edge from this block to MBB. /// -uint32_t MachineBasicBlock::getSuccWeight(MachineBasicBlock *succ) { +uint32_t MachineBasicBlock::getSuccWeight(const MachineBasicBlock *succ) const { if (Weights.empty()) return 0; - succ_iterator I = std::find(Successors.begin(), Successors.end(), succ); + const_succ_iterator I = std::find(Successors.begin(), Successors.end(), succ); return *getWeightIterator(I); } @@ -888,6 +888,16 @@ getWeightIterator(MachineBasicBlock::succ_iterator I) { return Weights.begin() + index; } +/// getWeightIterator - Return wight iterator corresonding to the I successor +/// iterator +MachineBasicBlock::const_weight_iterator MachineBasicBlock:: +getWeightIterator(MachineBasicBlock::const_succ_iterator I) const { + assert(Weights.size() == Successors.size() && "Async weight list!"); + const size_t index = std::distance(Successors.begin(), I); + assert(index < Weights.size() && "Not a current successor!"); + return Weights.begin() + index; +} + void llvm::WriteAsOperand(raw_ostream &OS, const MachineBasicBlock *MBB, bool t) { OS << "BB#" << MBB->getNumber(); |