diff options
| -rw-r--r-- | llvm/include/llvm/CodeGen/MachineBasicBlock.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/include/llvm/CodeGen/MachineBasicBlock.h b/llvm/include/llvm/CodeGen/MachineBasicBlock.h index 9d4ede6de1f..fb037402903 100644 --- a/llvm/include/llvm/CodeGen/MachineBasicBlock.h +++ b/llvm/include/llvm/CodeGen/MachineBasicBlock.h @@ -220,6 +220,16 @@ private: // Methods used to maintain doubly linked list of blocks... } }; +// This is useful when building DenseMaps keyed on MachineBasicBlocks +struct MachineBasicBlock2IndexFunctor + : std::unary_function<const MachineBasicBlock*, unsigned> { + unsigned operator()(const MachineBasicBlock* MBB) const { + assert(MBB->getNumber() != -1 && + "MachineBasicBlock does not belong to a MachineFunction"); + return MBB->getNumber(); + } +}; + //===--------------------------------------------------------------------===// // GraphTraits specializations for machine basic block graphs (machine-CFGs) |
