//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This file contains the SPARC implementation of the MRegisterInfo class.
+// This file contains the SPARC implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineLocation.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Type.h"
+#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/STLExtras.h"
-#include <iostream>
using namespace llvm;
SparcRegisterInfo::SparcRegisterInfo(SparcSubtarget &st,
Subtarget(st), TII(tii) {
}
-void SparcRegisterInfo::
-storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
- unsigned SrcReg, int FI,
- const TargetRegisterClass *RC) const {
- // On the order of operands here: think "[FrameIdx + 0] = SrcReg".
- if (RC == SP::IntRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::STri)).addFrameIndex(FI).addImm(0)
- .addReg(SrcReg);
- else if (RC == SP::FPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::STFri)).addFrameIndex(FI).addImm(0)
- .addReg(SrcReg);
- else if (RC == SP::DFPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::STDFri)).addFrameIndex(FI).addImm(0)
- .addReg(SrcReg);
- else
- assert(0 && "Can't store this register to stack slot");
-}
-
-void SparcRegisterInfo::
-loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
- unsigned DestReg, int FI,
- const TargetRegisterClass *RC) const {
- if (RC == SP::IntRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::LDri), DestReg).addFrameIndex(FI).addImm(0);
- else if (RC == SP::FPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::LDFri), DestReg).addFrameIndex(FI).addImm(0);
- else if (RC == SP::DFPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::LDDFri), DestReg).addFrameIndex(FI).addImm(0);
- else
- assert(0 && "Can't load this register from stack slot");
-}
-
-void SparcRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *RC) const {
- if (RC == SP::IntRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::ORrr), DestReg).addReg(SP::G0).addReg(SrcReg);
- else if (RC == SP::FPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(SP::FMOVS), DestReg).addReg(SrcReg);
- else if (RC == SP::DFPRegsRegisterClass)
- BuildMI(MBB, I, TII.get(Subtarget.isV9() ? SP::FMOVD : SP::FpMOVD),DestReg)
- .addReg(SrcReg);
- else
- assert (0 && "Can't copy this register");
+const unsigned* SparcRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF)
+ const {
+ static const unsigned CalleeSavedRegs[] = { 0 };
+ return CalleeSavedRegs;
}
-MachineInstr *SparcRegisterInfo::foldMemoryOperand(MachineInstr* MI,
- unsigned OpNum,
- int FI) const {
- bool isFloat = false;
- MachineInstr *NewMI = NULL;
- switch (MI->getOpcode()) {
- case SP::ORrr:
- if (MI->getOperand(1).isRegister() && MI->getOperand(1).getReg() == SP::G0&&
- MI->getOperand(0).isRegister() && MI->getOperand(2).isRegister()) {
- if (OpNum == 0) // COPY -> STORE
- NewMI = BuildMI(TII.get(SP::STri)).addFrameIndex(FI).addImm(0)
- .addReg(MI->getOperand(2).getReg());
- else // COPY -> LOAD
- NewMI = BuildMI(TII.get(SP::LDri), MI->getOperand(0).getReg())
- .addFrameIndex(FI).addImm(0);
- }
- break;
- case SP::FMOVS:
- isFloat = true;
- // FALLTHROUGH
- case SP::FMOVD:
- if (OpNum == 0) // COPY -> STORE
- NewMI = BuildMI(TII.get(isFloat ? SP::STFri : SP::STDFri))
- .addFrameIndex(FI).addImm(0).addReg(MI->getOperand(1).getReg());
- else // COPY -> LOAD
- NewMI = BuildMI(TII.get(isFloat ? SP::LDFri : SP::LDDFri),
- MI->getOperand(0).getReg()).addFrameIndex(FI).addImm(0);
- break;
- }
-
- if (NewMI)
- NewMI->copyKillDeadInfo(MI);
- return NewMI;
+BitVector SparcRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
+ BitVector Reserved(getNumRegs());
+ Reserved.set(SP::G2);
+ Reserved.set(SP::G3);
+ Reserved.set(SP::G4);
+ Reserved.set(SP::O6);
+ Reserved.set(SP::I6);
+ Reserved.set(SP::I7);
+ Reserved.set(SP::G0);
+ Reserved.set(SP::G5);
+ Reserved.set(SP::G6);
+ Reserved.set(SP::G7);
+ return Reserved;
}
-const unsigned* SparcRegisterInfo::getCalleeSaveRegs() const {
- static const unsigned CalleeSaveRegs[] = { 0 };
- return CalleeSaveRegs;
-}
const TargetRegisterClass* const*
-SparcRegisterInfo::getCalleeSaveRegClasses() const {
- static const TargetRegisterClass * const CalleeSaveRegClasses[] = { 0 };
- return CalleeSaveRegClasses;
+SparcRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
+ static const TargetRegisterClass * const CalleeSavedRegClasses[] = { 0 };
+ return CalleeSavedRegClasses;
}
+bool SparcRegisterInfo::hasFP(const MachineFunction &MF) const {
+ return false;
+}
void SparcRegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
MachineInstr &MI = *I;
- int Size = MI.getOperand(0).getImmedValue();
+ int Size = MI.getOperand(0).getImm();
if (MI.getOpcode() == SP::ADJCALLSTACKDOWN)
Size = -Size;
if (Size)
MBB.erase(I);
}
-void
-SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II) const {
+void SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
+ int SPAdj, RegScavenger *RS) const {
+ assert(SPAdj == 0 && "Unexpected");
+
unsigned i = 0;
MachineInstr &MI = *II;
- while (!MI.getOperand(i).isFrameIndex()) {
+ while (!MI.getOperand(i).isFI()) {
++i;
assert(i < MI.getNumOperands() && "Instr doesn't have FrameIndex operand!");
}
- int FrameIndex = MI.getOperand(i).getFrameIndex();
+ int FrameIndex = MI.getOperand(i).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).getImmedValue();
+ MI.getOperand(i+1).getImm();
// Replace frame index with a frame pointer reference.
if (Offset >= -4096 && Offset <= 4095) {
if (NumBytes >= -4096) {
BuildMI(MBB, MBB.begin(), TII.get(SP::SAVEri),
- SP::O6).addImm(NumBytes).addReg(SP::O6);
+ SP::O6).addReg(SP::O6).addImm(NumBytes);
} else {
MachineBasicBlock::iterator InsertPt = MBB.begin();
// Emit this the hard way. This clobbers G1 which we always know is
return SP::G1;
}
+unsigned SparcRegisterInfo::getEHExceptionRegister() const {
+ assert(0 && "What is the exception register");
+ return 0;
+}
+
+unsigned SparcRegisterInfo::getEHHandlerRegister() const {
+ assert(0 && "What is the exception handler register");
+ return 0;
+}
+
+int SparcRegisterInfo::getDwarfRegNum(unsigned RegNum, bool isEH) const {
+ assert(0 && "What is the dwarf register number");
+ return -1;
+}
+
#include "SparcGenRegisterInfo.inc"
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