1 //===-- CSKYRegisterInfo.h - CSKY Register Information Impl ---*- C++ -*---===//
9 // This file contains the CSKY implementation of the TargetRegisterInfo class.
14 #include "CSKY.h"
27     : CSKYGenRegisterInfo(CSKY::R15, 0, 0, 0) {}  in CSKYRegisterInfo()
42   return TFI->hasFP(MF) ? CSKY::R8 : CSKY::R14;  in getFrameRegister()
53     markSuperRegs(Reserved, CSKY::R7); // bp  in getReservedRegs()
56     markSuperRegs(Reserved, CSKY::R8); // fp  in getReservedRegs()
60       markSuperRegs(Reserved, CSKY::R8 + i); // R8 - R13  in getReservedRegs()
63   markSuperRegs(Reserved, CSKY::R14); // sp  in getReservedRegs()
64   markSuperRegs(Reserved, CSKY::R15); // lr  in getReservedRegs()
68       markSuperRegs(Reserved, CSKY::R16 + i); // R16 - R25  in getReservedRegs()
71   markSuperRegs(Reserved, CSKY::R26);  in getReservedRegs()
72   markSuperRegs(Reserved, CSKY::R27);  in getReservedRegs()
73   markSuperRegs(Reserved, CSKY::R28); // gp  in getReservedRegs()
74   markSuperRegs(Reserved, CSKY::R29);  in getReservedRegs()
75   markSuperRegs(Reserved, CSKY::R30);  in getReservedRegs()
76   markSuperRegs(Reserved, CSKY::R31); // tp  in getReservedRegs()
118   if (MI->getOpcode() == CSKY::ADDI32) {  in IsLegalOffset()
122       MI->setDesc(TII->get(CSKY::SUBI32));  in IsLegalOffset()
129   if (MI->getOpcode() == CSKY::ADDI16XZ)  in IsLegalOffset()
198   case CSKY::RESTORE_CARRY: {  in eliminateFrameIndex()
200                           ? MRI.createVirtualRegister(&CSKY::GPRRegClass)  in eliminateFrameIndex()
201                           : MRI.createVirtualRegister(&CSKY::mGPRRegClass);  in eliminateFrameIndex()
203     auto *Temp = BuildMI(MBB, II, DL, TII->get(CSKY::LD32W), NewReg)  in eliminateFrameIndex()
208     BuildMI(MBB, II, DL, TII->get(STI.hasE2() ? CSKY::BTSTI32 : CSKY::BTSTI16),  in eliminateFrameIndex()
218   case CSKY::SPILL_CARRY: {  in eliminateFrameIndex()
221       NewReg = MRI.createVirtualRegister(&CSKY::GPRRegClass);  in eliminateFrameIndex()
222       BuildMI(MBB, II, DL, TII->get(CSKY::MVC32), NewReg)  in eliminateFrameIndex()
225       NewReg = MRI.createVirtualRegister(&CSKY::mGPRRegClass);  in eliminateFrameIndex()
226       BuildMI(MBB, II, DL, TII->get(CSKY::MOVI16), NewReg).addImm(0);  in eliminateFrameIndex()
227       BuildMI(MBB, II, DL, TII->get(CSKY::ADDC16))  in eliminateFrameIndex()
234       BuildMI(MBB, II, DL, TII->get(CSKY::BTSTI16), MI->getOperand(0).getReg())  in eliminateFrameIndex()
239     MI = BuildMI(MBB, II, DL, TII->get(CSKY::ST32W))  in eliminateFrameIndex()
270             TII->get(STI.hasE2() ? CSKY::ADDU32 : CSKY::ADDU16XZ), ScratchReg)  in eliminateFrameIndex()
280       (MI->getOpcode() == CSKY::ADDI32 || MI->getOpcode() == CSKY::ADDI16XZ)) {  in eliminateFrameIndex()