-//===-- Mips/MipsCodeEmitter.cpp - Convert Mips code to machine code -----===//
+//===-- Mips/MipsCodeEmitter.cpp - Convert Mips Code to Machine Code ------===//
//
// The LLVM Compiler Infrastructure
//
#include "llvm/CodeGen/Passes.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
#include "llvm/PassManager.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
class MipsCodeEmitter : public MachineFunctionPass {
MipsJITInfo *JTI;
const MipsInstrInfo *II;
- const TargetData *TD;
+ const DataLayout *TD;
const MipsSubtarget *Subtarget;
TargetMachine &TM;
JITCodeEmitter &MCE;
MipsCodeEmitter(TargetMachine &tm, JITCodeEmitter &mce) :
MachineFunctionPass(ID), JTI(0),
II((const MipsInstrInfo *) tm.getInstrInfo()),
- TD(tm.getTargetData()), TM(tm), MCE(mce), MCPEs(0), MJTEs(0),
+ TD(tm.getDataLayout()), TM(tm), MCE(mce), MCPEs(0), MJTEs(0),
IsPIC(TM.getRelocationModel() == Reloc::PIC_) {
}
/// getBinaryCodeForInstr - This function, generated by the
/// CodeEmitterGenerator using TableGen, produces the binary encoding for
/// machine instructions.
- unsigned getBinaryCodeForInstr(const MachineInstr &MI) const;
+ uint64_t getBinaryCodeForInstr(const MachineInstr &MI) const;
void emitInstruction(const MachineInstr &MI);
unsigned getJumpTargetOpValue(const MachineInstr &MI, unsigned OpNo) const;
- unsigned getBranchTargetOpValue(const MachineInstr &MI, unsigned OpNo) const;
+ unsigned getBranchTargetOpValue(const MachineInstr &MI,
+ unsigned OpNo) const;
unsigned getMemEncoding(const MachineInstr &MI, unsigned OpNo) const;
unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const;
unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const;
int emitUSH(const MachineInstr &MI);
void emitGlobalAddressUnaligned(const GlobalValue *GV, unsigned Reloc,
- int Offset) const;
+ int Offset) const;
};
}
bool MipsCodeEmitter::runOnMachineFunction(MachineFunction &MF) {
JTI = ((MipsTargetMachine&) MF.getTarget()).getJITInfo();
II = ((const MipsTargetMachine&) MF.getTarget()).getInstrInfo();
- TD = ((const MipsTargetMachine&) MF.getTarget()).getTargetData();
+ TD = ((const MipsTargetMachine&) MF.getTarget()).getDataLayout();
Subtarget = &TM.getSubtarget<MipsSubtarget> ();
MCPEs = &MF.getConstantPool()->getConstants();
MJTEs = 0;
do {
DEBUG(errs() << "JITTing function '"
- << MF.getFunction()->getName() << "'\n");
+ << MF.getName() << "'\n");
MCE.startFunction(MF);
for (MachineFunction::iterator MBB = MF.begin(), E = MF.end();
MBB != E; ++MBB){
MCE.StartMachineBasicBlock(MBB);
- for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end();
- I != E; ++I)
+ for (MachineBasicBlock::instr_iterator I = MBB->instr_begin(),
+ E = MBB->instr_end(); I != E; ++I)
emitInstruction(*I);
}
} while (MCE.finishFunction(MF));
return Mips::reloc_mips_26;
if ((Form == MipsII::FrmI || Form == MipsII::FrmFI)
&& MI.isBranch())
- return Mips::reloc_mips_branch;
+ return Mips::reloc_mips_pc16;
if (Form == MipsII::FrmI && MI.getOpcode() == Mips::LUi)
return Mips::reloc_mips_hi;
return Mips::reloc_mips_lo;
unsigned MipsCodeEmitter::getJumpTargetOpValue(const MachineInstr &MI,
unsigned OpNo) const {
- // FIXME: implement
+ MachineOperand MO = MI.getOperand(OpNo);
+ if (MO.isGlobal())
+ emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
+ else if (MO.isSymbol())
+ emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
+ else if (MO.isMBB())
+ emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
+ else
+ llvm_unreachable("Unexpected jump target operand kind.");
return 0;
}
unsigned MipsCodeEmitter::getBranchTargetOpValue(const MachineInstr &MI,
unsigned OpNo) const {
- // FIXME: implement
+ MachineOperand MO = MI.getOperand(OpNo);
+ emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
return 0;
}
unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI,
const MachineOperand &MO) const {
if (MO.isReg())
- return MipsRegisterInfo::getRegisterNumbering(MO.getReg());
+ return getMipsRegisterNumbering(MO.getReg());
else if (MO.isImm())
return static_cast<unsigned>(MO.getImm());
- else if (MO.isGlobal()) {
- if (MI.getOpcode() == Mips::ULW || MI.getOpcode() == Mips::USW ||
- MI.getOpcode() == Mips::ULH || MI.getOpcode() == Mips::ULHu)
- emitGlobalAddressUnaligned(MO.getGlobal(), getRelocation(MI, MO), 4);
- else if (MI.getOpcode() == Mips::USH)
- emitGlobalAddressUnaligned(MO.getGlobal(), getRelocation(MI, MO), 8);
- else
- emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
- } else if (MO.isSymbol())
+ else if (MO.isGlobal())
+ emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
+ else if (MO.isSymbol())
emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
else if (MO.isCPI())
emitConstPoolAddress(MO.getIndex(), getRelocation(MI, MO));
void MipsCodeEmitter::
emitExternalSymbolAddress(const char *ES, unsigned Reloc) const {
MCE.addRelocation(MachineRelocation::getExtSym(MCE.getCurrentPCOffset(),
- Reloc, ES, 0, 0, false));
+ Reloc, ES, 0, 0));
}
void MipsCodeEmitter::emitConstPoolAddress(unsigned CPI, unsigned Reloc) const {
if ((MI.getDesc().TSFlags & MipsII::FormMask) == MipsII::Pseudo)
return;
-
- switch (MI.getOpcode()) {
- case Mips::USW:
- NumEmitted += emitUSW(MI);
- break;
- case Mips::ULW:
- NumEmitted += emitULW(MI);
- break;
- case Mips::ULH:
- NumEmitted += emitULH(MI);
- break;
- case Mips::ULHu:
- NumEmitted += emitULHu(MI);
- break;
- case Mips::USH:
- NumEmitted += emitUSH(MI);
- break;
-
- default:
- emitWordLE(getBinaryCodeForInstr(MI));
- ++NumEmitted; // Keep track of the # of mi's emitted
- break;
- }
+ emitWordLE(getBinaryCodeForInstr(MI));
+ ++NumEmitted; // Keep track of the # of mi's emitted
MCE.processDebugLoc(MI.getDebugLoc(), false);
}