diff options
Diffstat (limited to 'lib/Target/R600/SIMachineFunctionInfo.h')
-rw-r--r-- | lib/Target/R600/SIMachineFunctionInfo.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Target/R600/SIMachineFunctionInfo.h b/lib/Target/R600/SIMachineFunctionInfo.h index 8dc82a0..96e619b 100644 --- a/lib/Target/R600/SIMachineFunctionInfo.h +++ b/lib/Target/R600/SIMachineFunctionInfo.h @@ -25,7 +25,7 @@ class MachineRegisterInfo; /// This class keeps track of the SPI_SP_INPUT_ADDR config register, which /// tells the hardware which interpolation parameters to load. class SIMachineFunctionInfo : public AMDGPUMachineFunction { - virtual void anchor(); + void anchor() override; public: struct SpilledReg { @@ -43,7 +43,12 @@ public: public: unsigned LaneVGPR; RegSpillTracker() : CurrentLane(0), SpilledRegisters(), LaneVGPR(0) { } - unsigned getNextLane(MachineRegisterInfo &MRI); + /// \p NumRegs The number of consecutive registers what need to be spilled. + /// This function will ensure that all registers are stored in + /// the same VGPR. + /// \returns The lane to be used for storing the first register. + unsigned reserveLanes(MachineRegisterInfo &MRI, MachineFunction *MF, + unsigned NumRegs = 1); void addSpilledReg(unsigned FrameIndex, unsigned Reg, int Lane = -1); const SpilledReg& getSpilledReg(unsigned FrameIndex); bool programSpillsRegisters() { return !SpilledRegisters.empty(); } |