1 //===-- AMDGPURegisterInfo.cpp - AMDGPU Register Information -------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Parent TargetRegisterInfo class common to all hw codegen targets. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "AMDGPURegisterInfo.h" 15 #include "AMDGPUTargetMachine.h" 16 17 using namespace llvm; 18 19 AMDGPURegisterInfo::AMDGPURegisterInfo(TargetMachine &tm, 20 const TargetInstrInfo &tii) 21 : AMDGPUGenRegisterInfo(0), 22 TM(tm), 23 TII(tii) 24 { } 25 26 //===----------------------------------------------------------------------===// 27 // Function handling callbacks - Functions are a seldom used feature of GPUS, so 28 // they are not supported at this time. 29 //===----------------------------------------------------------------------===// 30 31 const uint16_t AMDGPURegisterInfo::CalleeSavedReg = AMDGPU::NoRegister; 32 33 const uint16_t* AMDGPURegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) 34 const { 35 return &CalleeSavedReg; 36 } 37 38 void AMDGPURegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator MI, 39 int SPAdj, 40 RegScavenger *RS) const { 41 assert(!"Subroutines not supported yet"); 42 } 43 44 unsigned AMDGPURegisterInfo::getFrameRegister(const MachineFunction &MF) const { 45 assert(!"Subroutines not supported yet"); 46 return 0; 47 } 48 49 #define GET_REGINFO_TARGET_DESC 50 #include "AMDGPUGenRegisterInfo.inc" 51
