diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp | 46 |
1 files changed, 17 insertions, 29 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp b/contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp index ff8d3c5..db9b30e 100644 --- a/contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/contrib/llvm/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -14,14 +14,14 @@ #include "SparcRegisterInfo.h" #include "Sparc.h" #include "SparcSubtarget.h" -#include "llvm/Type.h" -#include "llvm/CodeGen/MachineInstrBuilder.h" -#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/ADT/BitVector.h" +#include "llvm/ADT/STLExtras.h" #include "llvm/CodeGen/MachineFrameInfo.h" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/IR/Type.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Target/TargetInstrInfo.h" -#include "llvm/ADT/BitVector.h" -#include "llvm/ADT/STLExtras.h" #define GET_REGINFO_TARGET_DESC #include "SparcGenRegisterInfo.inc" @@ -56,45 +56,33 @@ BitVector SparcRegisterInfo::getReservedRegs(const MachineFunction &MF) const { return Reserved; } -void SparcRegisterInfo:: -eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, - MachineBasicBlock::iterator I) const { - MachineInstr &MI = *I; - DebugLoc dl = MI.getDebugLoc(); - int Size = MI.getOperand(0).getImm(); - if (MI.getOpcode() == SP::ADJCALLSTACKDOWN) - Size = -Size; - if (Size) - BuildMI(MBB, I, dl, TII.get(SP::ADDri), SP::O6).addReg(SP::O6).addImm(Size); - MBB.erase(I); +const TargetRegisterClass* +SparcRegisterInfo::getPointerRegClass(const MachineFunction &MF, + unsigned Kind) const { + return Subtarget.is64Bit() ? &SP::I64RegsRegClass : &SP::IntRegsRegClass; } void SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, - int SPAdj, RegScavenger *RS) const { + int SPAdj, unsigned FIOperandNum, + RegScavenger *RS) const { assert(SPAdj == 0 && "Unexpected"); - unsigned i = 0; MachineInstr &MI = *II; DebugLoc dl = MI.getDebugLoc(); - while (!MI.getOperand(i).isFI()) { - ++i; - assert(i < MI.getNumOperands() && "Instr doesn't have FrameIndex operand!"); - } - - int FrameIndex = MI.getOperand(i).getIndex(); + int FrameIndex = MI.getOperand(FIOperandNum).getIndex(); // Addressable stack objects are accessed using neg. offsets from %fp MachineFunction &MF = *MI.getParent()->getParent(); int Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) + - MI.getOperand(i+1).getImm(); + MI.getOperand(FIOperandNum + 1).getImm(); // Replace frame index with a frame pointer reference. if (Offset >= -4096 && Offset <= 4095) { // If the offset is small enough to fit in the immediate field, directly // encode it. - MI.getOperand(i).ChangeToRegister(SP::I6, false); - MI.getOperand(i+1).ChangeToImmediate(Offset); + MI.getOperand(FIOperandNum).ChangeToRegister(SP::I6, false); + MI.getOperand(FIOperandNum + 1).ChangeToImmediate(Offset); } else { // Otherwise, emit a G1 = SETHI %hi(offset). FIXME: it would be better to // scavenge a register here instead of reserving G1 all of the time. @@ -104,8 +92,8 @@ SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, BuildMI(*MI.getParent(), II, dl, TII.get(SP::ADDrr), SP::G1).addReg(SP::G1) .addReg(SP::I6); // Insert: G1+%lo(offset) into the user. - MI.getOperand(i).ChangeToRegister(SP::G1, false); - MI.getOperand(i+1).ChangeToImmediate(Offset & ((1 << 10)-1)); + MI.getOperand(FIOperandNum).ChangeToRegister(SP::G1, false); + MI.getOperand(FIOperandNum + 1).ChangeToImmediate(Offset & ((1 << 10)-1)); } } |