diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp | 160 |
1 files changed, 16 insertions, 144 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp b/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp index cb7022b9e29e..05090b84dece 100644 --- a/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp +++ b/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp @@ -30,7 +30,6 @@ #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" @@ -48,7 +47,7 @@ namespace { class MipsCodeEmitter : public MachineFunctionPass { MipsJITInfo *JTI; const MipsInstrInfo *II; - const TargetData *TD; + const DataLayout *TD; const MipsSubtarget *Subtarget; TargetMachine &TM; JITCodeEmitter &MCE; @@ -67,7 +66,7 @@ class MipsCodeEmitter : public MachineFunctionPass { 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_) { } @@ -86,7 +85,7 @@ class MipsCodeEmitter : public MachineFunctionPass { private: - void emitWordLE(unsigned Word); + void emitWord(unsigned Word); /// Routines that handle operands which add machine relocations which are /// fixed up by the relocation stage. @@ -113,12 +112,6 @@ class MipsCodeEmitter : public MachineFunctionPass { unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const; unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const; - int emitULW(const MachineInstr &MI); - int emitUSW(const MachineInstr &MI); - int emitULH(const MachineInstr &MI); - int emitULHu(const MachineInstr &MI); - int emitUSH(const MachineInstr &MI); - void emitGlobalAddressUnaligned(const GlobalValue *GV, unsigned Reloc, int Offset) const; }; @@ -129,17 +122,17 @@ char MipsCodeEmitter::ID = 0; 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; if (MF.getJumpTableInfo()) MJTEs = &MF.getJumpTableInfo()->getJumpTables(); - JTI->Initialize(MF, IsPIC); + JTI->Initialize(MF, IsPIC, Subtarget->isLittle()); MCE.setModuleInfo(&getAnalysis<MachineModuleInfo> ()); do { DEBUG(errs() << "JITTing function '" - << MF.getFunction()->getName() << "'\n"); + << MF.getName() << "'\n"); MCE.startFunction(MF); for (MachineFunction::iterator MBB = MF.begin(), E = MF.end(); @@ -219,15 +212,9 @@ unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI, 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)); @@ -278,103 +265,6 @@ void MipsCodeEmitter::emitMachineBasicBlock(MachineBasicBlock *BB, Reloc, BB)); } -int MipsCodeEmitter::emitUSW(const MachineInstr &MI) { - unsigned src = getMachineOpValue(MI, MI.getOperand(0)); - unsigned base = getMachineOpValue(MI, MI.getOperand(1)); - unsigned offset = getMachineOpValue(MI, MI.getOperand(2)); - // swr src, offset(base) - // swl src, offset+3(base) - MCE.emitWordLE( - (0x2e << 26) | (base << 21) | (src << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x2a << 26) | (base << 21) | (src << 16) | ((offset+3) & 0xffff)); - return 2; -} - -int MipsCodeEmitter::emitULW(const MachineInstr &MI) { - unsigned dst = getMachineOpValue(MI, MI.getOperand(0)); - unsigned base = getMachineOpValue(MI, MI.getOperand(1)); - unsigned offset = getMachineOpValue(MI, MI.getOperand(2)); - unsigned at = 1; - if (dst != base) { - // lwr dst, offset(base) - // lwl dst, offset+3(base) - MCE.emitWordLE( - (0x26 << 26) | (base << 21) | (dst << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x22 << 26) | (base << 21) | (dst << 16) | ((offset+3) & 0xffff)); - return 2; - } else { - // lwr at, offset(base) - // lwl at, offset+3(base) - // addu dst, at, $zero - MCE.emitWordLE( - (0x26 << 26) | (base << 21) | (at << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x22 << 26) | (base << 21) | (at << 16) | ((offset+3) & 0xffff)); - MCE.emitWordLE( - (0x0 << 26) | (at << 21) | (0x0 << 16) | (dst << 11) | (0x0 << 6) | 0x21); - return 3; - } -} - -int MipsCodeEmitter::emitUSH(const MachineInstr &MI) { - unsigned src = getMachineOpValue(MI, MI.getOperand(0)); - unsigned base = getMachineOpValue(MI, MI.getOperand(1)); - unsigned offset = getMachineOpValue(MI, MI.getOperand(2)); - unsigned at = 1; - // sb src, offset(base) - // srl at,src,8 - // sb at, offset+1(base) - MCE.emitWordLE( - (0x28 << 26) | (base << 21) | (src << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x0 << 26) | (0x0 << 21) | (src << 16) | (at << 11) | (0x8 << 6) | 0x2); - MCE.emitWordLE( - (0x28 << 26) | (base << 21) | (at << 16) | ((offset+1) & 0xffff)); - return 3; -} - -int MipsCodeEmitter::emitULH(const MachineInstr &MI) { - unsigned dst = getMachineOpValue(MI, MI.getOperand(0)); - unsigned base = getMachineOpValue(MI, MI.getOperand(1)); - unsigned offset = getMachineOpValue(MI, MI.getOperand(2)); - unsigned at = 1; - // lbu at, offset(base) - // lb dst, offset+1(base) - // sll dst,dst,8 - // or dst,dst,at - MCE.emitWordLE( - (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x20 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff)); - MCE.emitWordLE( - (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0); - MCE.emitWordLE( - (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25); - return 4; -} - -int MipsCodeEmitter::emitULHu(const MachineInstr &MI) { - unsigned dst = getMachineOpValue(MI, MI.getOperand(0)); - unsigned base = getMachineOpValue(MI, MI.getOperand(1)); - unsigned offset = getMachineOpValue(MI, MI.getOperand(2)); - unsigned at = 1; - // lbu at, offset(base) - // lbu dst, offset+1(base) - // sll dst,dst,8 - // or dst,dst,at - MCE.emitWordLE( - (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff)); - MCE.emitWordLE( - (0x24 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff)); - MCE.emitWordLE( - (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0); - MCE.emitWordLE( - (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25); - return 4; -} - void MipsCodeEmitter::emitInstruction(const MachineInstr &MI) { DEBUG(errs() << "JIT: " << (void*)MCE.getCurrentPCValue() << ":\t" << MI); @@ -384,37 +274,19 @@ void MipsCodeEmitter::emitInstruction(const MachineInstr &MI) { 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; - } + emitWord(getBinaryCodeForInstr(MI)); + ++NumEmitted; // Keep track of the # of mi's emitted MCE.processDebugLoc(MI.getDebugLoc(), false); } -void MipsCodeEmitter::emitWordLE(unsigned Word) { +void MipsCodeEmitter::emitWord(unsigned Word) { DEBUG(errs() << " 0x"; errs().write_hex(Word) << "\n"); - MCE.emitWordLE(Word); + if (Subtarget->isLittle()) + MCE.emitWordLE(Word); + else + MCE.emitWordBE(Word); } /// createMipsJITCodeEmitterPass - Return a pass that emits the collected Mips |