diff options
Diffstat (limited to 'lib/Target/ARM/ARMCodeEmitter.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMCodeEmitter.cpp | 157 |
1 files changed, 106 insertions, 51 deletions
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp index c27fc5f..70b5d78 100644 --- a/lib/Target/ARM/ARMCodeEmitter.cpp +++ b/lib/Target/ARM/ARMCodeEmitter.cpp @@ -25,6 +25,7 @@ #include "llvm/Function.h" #include "llvm/PassManager.h" #include "llvm/CodeGen/MachineCodeEmitter.h" +#include "llvm/CodeGen/JITCodeEmitter.h" #include "llvm/CodeGen/MachineConstantPool.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineInstr.h" @@ -41,23 +42,37 @@ using namespace llvm; STATISTIC(NumEmitted, "Number of machine instructions emitted"); namespace { - class VISIBILITY_HIDDEN ARMCodeEmitter : public MachineFunctionPass { + + class ARMCodeEmitter { + public: + + /// getBinaryCodeForInstr - This function, generated by the + /// CodeEmitterGenerator using TableGen, produces the binary encoding for + /// machine instructions. + + unsigned getBinaryCodeForInstr(const MachineInstr &MI); + }; + + template< class machineCodeEmitter> + class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass, + public ARMCodeEmitter + { ARMJITInfo *JTI; const ARMInstrInfo *II; const TargetData *TD; TargetMachine &TM; - MachineCodeEmitter &MCE; + machineCodeEmitter &MCE; const std::vector<MachineConstantPoolEntry> *MCPEs; const std::vector<MachineJumpTableEntry> *MJTEs; bool IsPIC; public: static char ID; - explicit ARMCodeEmitter(TargetMachine &tm, MachineCodeEmitter &mce) + explicit Emitter(TargetMachine &tm, machineCodeEmitter &mce) : MachineFunctionPass(&ID), JTI(0), II(0), TD(0), TM(tm), MCE(mce), MCPEs(0), MJTEs(0), IsPIC(TM.getRelocationModel() == Reloc::PIC_) {} - ARMCodeEmitter(TargetMachine &tm, MachineCodeEmitter &mce, + Emitter(TargetMachine &tm, machineCodeEmitter &mce, const ARMInstrInfo &ii, const TargetData &td) : MachineFunctionPass(&ID), JTI(0), II(&ii), TD(&td), TM(tm), MCE(mce), MCPEs(0), MJTEs(0), @@ -134,12 +149,6 @@ namespace { void emitMiscInstruction(const MachineInstr &MI); - /// getBinaryCodeForInstr - This function, generated by the - /// CodeEmitterGenerator using TableGen, produces the binary encoding for - /// machine instructions. - /// - unsigned getBinaryCodeForInstr(const MachineInstr &MI); - /// getMachineOpValue - Return binary encoding of operand. If the machine /// operand requires relocation, record the relocation and return zero. unsigned getMachineOpValue(const MachineInstr &MI,const MachineOperand &MO); @@ -161,17 +170,30 @@ namespace { void emitMachineBasicBlock(MachineBasicBlock *BB, unsigned Reloc, intptr_t JTBase = 0); }; - char ARMCodeEmitter::ID = 0; + template <class machineCodeEmitter> + char Emitter<machineCodeEmitter>::ID = 0; } /// createARMCodeEmitterPass - Return a pass that emits the collected ARM code /// to the specified MCE object. -FunctionPass *llvm::createARMCodeEmitterPass(ARMTargetMachine &TM, - MachineCodeEmitter &MCE) { - return new ARMCodeEmitter(TM, MCE); + +namespace llvm { + +FunctionPass *createARMCodeEmitterPass( + ARMTargetMachine &TM, MachineCodeEmitter &MCE) +{ + return new Emitter<MachineCodeEmitter>(TM, MCE); +} +FunctionPass *createARMJITCodeEmitterPass( + ARMTargetMachine &TM, JITCodeEmitter &JCE) +{ + return new Emitter<JITCodeEmitter>(TM, JCE); } -bool ARMCodeEmitter::runOnMachineFunction(MachineFunction &MF) { +} // end namespace llvm + +template< class machineCodeEmitter> +bool Emitter< machineCodeEmitter>::runOnMachineFunction(MachineFunction &MF) { assert((MF.getTarget().getRelocationModel() != Reloc::Default || MF.getTarget().getRelocationModel() != Reloc::Static) && "JIT relocation model must be set to static or default!"); @@ -200,7 +222,8 @@ bool ARMCodeEmitter::runOnMachineFunction(MachineFunction &MF) { /// getShiftOp - Return the shift opcode (bit[6:5]) of the immediate value. /// -unsigned ARMCodeEmitter::getShiftOp(unsigned Imm) const { +template< class machineCodeEmitter> +unsigned Emitter< machineCodeEmitter>::getShiftOp(unsigned Imm) const { switch (ARM_AM::getAM2ShiftOpc(Imm)) { default: assert(0 && "Unknown shift opc!"); case ARM_AM::asr: return 2; @@ -214,7 +237,8 @@ unsigned ARMCodeEmitter::getShiftOp(unsigned Imm) const { /// getMachineOpValue - Return binary encoding of operand. If the machine /// operand requires relocation, record the relocation and return zero. -unsigned ARMCodeEmitter::getMachineOpValue(const MachineInstr &MI, +template< class machineCodeEmitter> +unsigned Emitter< machineCodeEmitter>::getMachineOpValue(const MachineInstr &MI, const MachineOperand &MO) { if (MO.isReg()) return ARMRegisterInfo::getRegisterNumbering(MO.getReg()); @@ -243,7 +267,8 @@ unsigned ARMCodeEmitter::getMachineOpValue(const MachineInstr &MI, /// emitGlobalAddress - Emit the specified address to the code stream. /// -void ARMCodeEmitter::emitGlobalAddress(GlobalValue *GV, unsigned Reloc, +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitGlobalAddress(GlobalValue *GV, unsigned Reloc, bool NeedStub, intptr_t ACPV) { MCE.addRelocation(MachineRelocation::getGV(MCE.getCurrentPCOffset(), Reloc, GV, ACPV, NeedStub)); @@ -252,7 +277,8 @@ void ARMCodeEmitter::emitGlobalAddress(GlobalValue *GV, unsigned Reloc, /// emitExternalSymbolAddress - Arrange for the address of an external symbol to /// be emitted to the current location in the function, and allow it to be PC /// relative. -void ARMCodeEmitter::emitExternalSymbolAddress(const char *ES, unsigned Reloc) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitExternalSymbolAddress(const char *ES, unsigned Reloc) { MCE.addRelocation(MachineRelocation::getExtSym(MCE.getCurrentPCOffset(), Reloc, ES)); } @@ -260,7 +286,8 @@ void ARMCodeEmitter::emitExternalSymbolAddress(const char *ES, unsigned Reloc) { /// emitConstPoolAddress - Arrange for the address of an constant pool /// to be emitted to the current location in the function, and allow it to be PC /// relative. -void ARMCodeEmitter::emitConstPoolAddress(unsigned CPI, unsigned Reloc) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitConstPoolAddress(unsigned CPI, unsigned Reloc) { // Tell JIT emitter we'll resolve the address. MCE.addRelocation(MachineRelocation::getConstPool(MCE.getCurrentPCOffset(), Reloc, CPI, 0, true)); @@ -269,19 +296,22 @@ void ARMCodeEmitter::emitConstPoolAddress(unsigned CPI, unsigned Reloc) { /// emitJumpTableAddress - Arrange for the address of a jump table to /// be emitted to the current location in the function, and allow it to be PC /// relative. -void ARMCodeEmitter::emitJumpTableAddress(unsigned JTIndex, unsigned Reloc) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitJumpTableAddress(unsigned JTIndex, unsigned Reloc) { MCE.addRelocation(MachineRelocation::getJumpTable(MCE.getCurrentPCOffset(), Reloc, JTIndex, 0, true)); } /// emitMachineBasicBlock - Emit the specified address basic block. -void ARMCodeEmitter::emitMachineBasicBlock(MachineBasicBlock *BB, +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMachineBasicBlock(MachineBasicBlock *BB, unsigned Reloc, intptr_t JTBase) { MCE.addRelocation(MachineRelocation::getBB(MCE.getCurrentPCOffset(), Reloc, BB, JTBase)); } -void ARMCodeEmitter::emitWordLE(unsigned Binary) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitWordLE(unsigned Binary) { #ifndef NDEBUG DOUT << " 0x" << std::hex << std::setw(8) << std::setfill('0') << Binary << std::dec << "\n"; @@ -289,7 +319,8 @@ void ARMCodeEmitter::emitWordLE(unsigned Binary) { MCE.emitWordLE(Binary); } -void ARMCodeEmitter::emitDWordLE(uint64_t Binary) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitDWordLE(uint64_t Binary) { #ifndef NDEBUG DOUT << " 0x" << std::hex << std::setw(8) << std::setfill('0') << (unsigned)Binary << std::dec << "\n"; @@ -299,7 +330,8 @@ void ARMCodeEmitter::emitDWordLE(uint64_t Binary) { MCE.emitDWordLE(Binary); } -void ARMCodeEmitter::emitInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitInstruction(const MachineInstr &MI) { DOUT << "JIT: " << (void*)MCE.getCurrentPCValue() << ":\t" << MI; NumEmitted++; // Keep track of the # of mi's emitted @@ -365,7 +397,8 @@ void ARMCodeEmitter::emitInstruction(const MachineInstr &MI) { } } -void ARMCodeEmitter::emitConstPoolInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitConstPoolInstruction(const MachineInstr &MI) { unsigned CPI = MI.getOperand(0).getImm(); // CP instruction index. unsigned CPIndex = MI.getOperand(1).getIndex(); // Actual cp entry index. const MachineConstantPoolEntry &MCPE = (*MCPEs)[CPIndex]; @@ -432,7 +465,8 @@ void ARMCodeEmitter::emitConstPoolInstruction(const MachineInstr &MI) { } } -void ARMCodeEmitter::emitMOVi2piecesInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMOVi2piecesInstruction(const MachineInstr &MI) { const MachineOperand &MO0 = MI.getOperand(0); const MachineOperand &MO1 = MI.getOperand(1); assert(MO1.isImm() && "Not a valid so_imm value!"); @@ -473,7 +507,8 @@ void ARMCodeEmitter::emitMOVi2piecesInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitLEApcrelJTInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitLEApcrelJTInstruction(const MachineInstr &MI) { // It's basically add r, pc, (LJTI - $+8) const TargetInstrDesc &TID = MI.getDesc(); @@ -501,7 +536,8 @@ void ARMCodeEmitter::emitLEApcrelJTInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitPseudoMoveInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitPseudoMoveInstruction(const MachineInstr &MI) { unsigned Opcode = MI.getDesc().Opcode; // Part of binary is determined by TableGn. @@ -540,13 +576,15 @@ void ARMCodeEmitter::emitPseudoMoveInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::addPCLabel(unsigned LabelID) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::addPCLabel(unsigned LabelID) { DOUT << " ** LPC" << LabelID << " @ " << (void*)MCE.getCurrentPCValue() << '\n'; JTI->addPCLabelAddr(LabelID, MCE.getCurrentPCValue()); } -void ARMCodeEmitter::emitPseudoInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitPseudoInstruction(const MachineInstr &MI) { unsigned Opcode = MI.getDesc().Opcode; switch (Opcode) { default: @@ -615,8 +653,8 @@ void ARMCodeEmitter::emitPseudoInstruction(const MachineInstr &MI) { } } - -unsigned ARMCodeEmitter::getMachineSoRegOpValue(const MachineInstr &MI, +template< class machineCodeEmitter> +unsigned Emitter< machineCodeEmitter>::getMachineSoRegOpValue(const MachineInstr &MI, const TargetInstrDesc &TID, const MachineOperand &MO, unsigned OpIdx) { @@ -674,7 +712,8 @@ unsigned ARMCodeEmitter::getMachineSoRegOpValue(const MachineInstr &MI, return Binary | ARM_AM::getSORegOffset(MO2.getImm()) << 7; } -unsigned ARMCodeEmitter::getMachineSoImmOpValue(unsigned SoImm) { +template< class machineCodeEmitter> +unsigned Emitter< machineCodeEmitter>::getMachineSoImmOpValue(unsigned SoImm) { // Encode rotate_imm. unsigned Binary = (ARM_AM::getSOImmValRot(SoImm) >> 1) << ARMII::SoRotImmShift; @@ -684,7 +723,8 @@ unsigned ARMCodeEmitter::getMachineSoImmOpValue(unsigned SoImm) { return Binary; } -unsigned ARMCodeEmitter::getAddrModeSBit(const MachineInstr &MI, +template< class machineCodeEmitter> +unsigned Emitter< machineCodeEmitter>::getAddrModeSBit(const MachineInstr &MI, const TargetInstrDesc &TID) const { for (unsigned i = MI.getNumOperands(), e = TID.getNumOperands(); i != e; --i){ const MachineOperand &MO = MI.getOperand(i-1); @@ -694,7 +734,8 @@ unsigned ARMCodeEmitter::getAddrModeSBit(const MachineInstr &MI, return 0; } -void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI, +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitDataProcessingInstruction(const MachineInstr &MI, unsigned ImplicitRd, unsigned ImplicitRn) { const TargetInstrDesc &TID = MI.getDesc(); @@ -757,7 +798,8 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI, emitWordLE(Binary); } -void ARMCodeEmitter::emitLoadStoreInstruction(const MachineInstr &MI, +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitLoadStoreInstruction(const MachineInstr &MI, unsigned ImplicitRd, unsigned ImplicitRn) { const TargetInstrDesc &TID = MI.getDesc(); @@ -831,7 +873,8 @@ void ARMCodeEmitter::emitLoadStoreInstruction(const MachineInstr &MI, emitWordLE(Binary); } -void ARMCodeEmitter::emitMiscLoadStoreInstruction(const MachineInstr &MI, +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMiscLoadStoreInstruction(const MachineInstr &MI, unsigned ImplicitRn) { const TargetInstrDesc &TID = MI.getDesc(); unsigned Form = TID.TSFlags & ARMII::FormMask; @@ -914,7 +957,8 @@ static unsigned getAddrModeUPBits(unsigned Mode) { return Binary; } -void ARMCodeEmitter::emitLoadStoreMultipleInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitLoadStoreMultipleInstruction(const MachineInstr &MI) { // Part of binary is determined by TableGn. unsigned Binary = getBinaryCodeForInstr(MI); @@ -946,7 +990,8 @@ void ARMCodeEmitter::emitLoadStoreMultipleInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitMulFrmInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMulFrmInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); // Part of binary is determined by TableGn. @@ -983,7 +1028,8 @@ void ARMCodeEmitter::emitMulFrmInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitExtendInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitExtendInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); // Part of binary is determined by TableGn. @@ -1020,7 +1066,8 @@ void ARMCodeEmitter::emitExtendInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMiscArithInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); // Part of binary is determined by TableGn. @@ -1058,7 +1105,8 @@ void ARMCodeEmitter::emitMiscArithInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitBranchInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitBranchInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); if (TID.Opcode == ARM::TPsoft) @@ -1076,7 +1124,8 @@ void ARMCodeEmitter::emitBranchInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitInlineJumpTable(unsigned JTIndex) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitInlineJumpTable(unsigned JTIndex) { // Remember the base address of the inline jump table. uintptr_t JTBase = MCE.getCurrentPCValue(); JTI->addJumpTableBaseAddr(JTIndex, JTBase); @@ -1095,7 +1144,8 @@ void ARMCodeEmitter::emitInlineJumpTable(unsigned JTIndex) { } } -void ARMCodeEmitter::emitMiscBranchInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMiscBranchInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); // Handle jump tables. @@ -1175,7 +1225,8 @@ static unsigned encodeVFPRm(const MachineInstr &MI, unsigned OpIdx) { return Binary; } -void ARMCodeEmitter::emitVFPArithInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitVFPArithInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); // Part of binary is determined by TableGn. @@ -1214,7 +1265,8 @@ void ARMCodeEmitter::emitVFPArithInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitVFPConversionInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitVFPConversionInstruction(const MachineInstr &MI) { const TargetInstrDesc &TID = MI.getDesc(); unsigned Form = TID.TSFlags & ARMII::FormMask; @@ -1270,7 +1322,8 @@ void ARMCodeEmitter::emitVFPConversionInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitVFPLoadStoreInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitVFPLoadStoreInstruction(const MachineInstr &MI) { // Part of binary is determined by TableGn. unsigned Binary = getBinaryCodeForInstr(MI); @@ -1304,8 +1357,8 @@ void ARMCodeEmitter::emitVFPLoadStoreInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void -ARMCodeEmitter::emitVFPLoadStoreMultipleInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitVFPLoadStoreMultipleInstruction(const MachineInstr &MI) { // Part of binary is determined by TableGn. unsigned Binary = getBinaryCodeForInstr(MI); @@ -1339,7 +1392,8 @@ ARMCodeEmitter::emitVFPLoadStoreMultipleInstruction(const MachineInstr &MI) { emitWordLE(Binary); } -void ARMCodeEmitter::emitMiscInstruction(const MachineInstr &MI) { +template< class machineCodeEmitter> +void Emitter< machineCodeEmitter>::emitMiscInstruction(const MachineInstr &MI) { // Part of binary is determined by TableGn. unsigned Binary = getBinaryCodeForInstr(MI); @@ -1350,3 +1404,4 @@ void ARMCodeEmitter::emitMiscInstruction(const MachineInstr &MI) { } #include "ARMGenCodeEmitter.inc" + |