diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineFunction.h')
-rw-r--r-- | include/llvm/CodeGen/MachineFunction.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h index 43b370cccf..09cc1e5dfb 100644 --- a/include/llvm/CodeGen/MachineFunction.h +++ b/include/llvm/CodeGen/MachineFunction.h @@ -426,6 +426,15 @@ public: OperandRecycler.deallocate(Cap, Array); } + /// \brief Allocate and initialize a register mask with @p NumRegister bits. + uint32_t *allocateRegisterMask(unsigned NumRegister) { + unsigned Size = (NumRegister + 31) / 32; + uint32_t *Mask = Allocator.Allocate<uint32_t>(Size); + for (unsigned i = 0; i != Size; ++i) + Mask[i] = 0; + return Mask; + } + /// allocateMemRefsArray - Allocate an array to hold MachineMemOperand /// pointers. This array is owned by the MachineFunction. MachineInstr::mmo_iterator allocateMemRefsArray(unsigned long Num); |