diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPU.h | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPUInstrInfo.h | 8 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPUMCInstLower.cpp | 30 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPUTargetMachine.cpp | 26 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/AMDGPUTargetMachine.h | 4 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.cpp | 10 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.h | 10 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/MCTargetDesc/R600MCCodeEmitter.cpp | 703 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/MCTargetDesc/SIMCCodeEmitter.cpp | 14 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/Makefile.sources | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600CodeEmitter.cpp | 618 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600Defines.h | 23 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600ExpandSpecialInstrs.cpp | 3 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600ISelLowering.cpp | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600InstrInfo.cpp | 62 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600InstrInfo.h | 2 |
16 files changed, 779 insertions, 738 deletions
diff --git a/src/gallium/drivers/radeon/AMDGPU.h b/src/gallium/drivers/radeon/AMDGPU.h index 927e62a27dd..514adb621f4 100644 --- a/src/gallium/drivers/radeon/AMDGPU.h +++ b/src/gallium/drivers/radeon/AMDGPU.h @@ -21,7 +21,6 @@ class AMDGPUTargetMachine; // R600 Passes FunctionPass* createR600KernelParametersPass(const TargetData* TD); -FunctionPass *createR600CodeEmitterPass(formatted_raw_ostream &OS); FunctionPass *createR600ExpandSpecialInstrsPass(TargetMachine &tm); // SI Passes diff --git a/src/gallium/drivers/radeon/AMDGPUInstrInfo.h b/src/gallium/drivers/radeon/AMDGPUInstrInfo.h index 5f72869cb0a..dd5108e8192 100644 --- a/src/gallium/drivers/radeon/AMDGPUInstrInfo.h +++ b/src/gallium/drivers/radeon/AMDGPUInstrInfo.h @@ -25,14 +25,6 @@ #define GET_INSTRINFO_ENUM #include "AMDGPUGenInstrInfo.inc" -#define MO_FLAG_CLAMP (1 << 0) -#define MO_FLAG_NEG (1 << 1) -#define MO_FLAG_ABS (1 << 2) -#define MO_FLAG_MASK (1 << 3) -#define MO_FLAG_PUSH (1 << 4) -#define MO_FLAG_LAST (1 << 5) -#define NUM_MO_FLAGS 6 - #define OPCODE_IS_ZERO_INT 0x00000045 #define OPCODE_IS_NOT_ZERO_INT 0x00000042 #define OPCODE_IS_ZERO 0x00000020 diff --git a/src/gallium/drivers/radeon/AMDGPUMCInstLower.cpp b/src/gallium/drivers/radeon/AMDGPUMCInstLower.cpp index 53bd561a2fe..65738c2f96d 100644 --- a/src/gallium/drivers/radeon/AMDGPUMCInstLower.cpp +++ b/src/gallium/drivers/radeon/AMDGPUMCInstLower.cpp @@ -1,6 +1,8 @@ #include "AMDGPUMCInstLower.h" #include "AMDGPUAsmPrinter.h" +#include "R600InstrInfo.h" +#include "llvm/CodeGen/MachineBasicBlock.h" #include "llvm/CodeGen/MachineInstr.h" #include "llvm/Constants.h" #include "llvm/MC/MCInst.h" @@ -14,13 +16,12 @@ AMDGPUMCInstLower::AMDGPUMCInstLower() { } void AMDGPUMCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const { OutMI.setOpcode(MI->getOpcode()); - for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { + for (unsigned i = 0, e = MI->getNumExplicitOperands(); i != e; ++i) { const MachineOperand &MO = MI->getOperand(i); MCOperand MCOp; switch (MO.getType()) { default: - MI->dump(); llvm_unreachable("unknown operand type"); case MachineOperand::MO_FPImmediate: { const APFloat &FloatValue = MO.getFPImm()->getValueAPF(); @@ -42,7 +43,26 @@ void AMDGPUMCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const { void AMDGPUAsmPrinter::EmitInstruction(const MachineInstr *MI) { AMDGPUMCInstLower MCInstLowering; - MCInst TmpInst; - MCInstLowering.Lower(MI, TmpInst); - OutStreamer.EmitInstruction(TmpInst); + + // Ignore placeholder instructions: + if (MI->getOpcode() == AMDGPU::MASK_WRITE) { + return; + } + + if (MI->isBundle()) { + const MachineBasicBlock *MBB = MI->getParent(); + MachineBasicBlock::const_instr_iterator I = MI; + ++I; + while (I != MBB->end() && I->isInsideBundle()) { + MCInst MCBundleInst; + const MachineInstr *BundledInst = I; + MCInstLowering.Lower(BundledInst, MCBundleInst); + OutStreamer.EmitInstruction(MCBundleInst); + ++I; + } + } else { + MCInst TmpInst; + MCInstLowering.Lower(MI, TmpInst); + OutStreamer.EmitInstruction(TmpInst); + } } diff --git a/src/gallium/drivers/radeon/AMDGPUTargetMachine.cpp b/src/gallium/drivers/radeon/AMDGPUTargetMachine.cpp index 62c04d60b00..8de7bb7a790 100644 --- a/src/gallium/drivers/radeon/AMDGPUTargetMachine.cpp +++ b/src/gallium/drivers/radeon/AMDGPUTargetMachine.cpp @@ -69,32 +69,6 @@ AMDGPUTargetMachine::~AMDGPUTargetMachine() { } -bool AMDGPUTargetMachine::addPassesToEmitFile(PassManagerBase &PM, - formatted_raw_ostream &Out, - CodeGenFileType FileType, - bool DisableVerify) { - - const AMDGPUSubtarget &STM = getSubtarget<AMDGPUSubtarget>(); - std::string gpu = STM.getDeviceName(); - if (gpu == "SI") { - return LLVMTargetMachine::addPassesToEmitFile(PM, Out, FileType, - DisableVerify); - } else if (Subtarget.device()->getGeneration() <= AMDGPUDeviceInfo::HD6XXX) { - // XXX: Hack here addPassesToEmitFile will fail, but this is Ok since we are - // only using it to access addPassesToGenerateCode() - bool fail = LLVMTargetMachine::addPassesToEmitFile(PM, Out, FileType, - DisableVerify); - assert(fail); - PM.add(createR600CodeEmitterPass(Out)); - } else { - abort(); - return true; - } - PM.add(createGCInfoDeleter()); - - return false; -} - namespace { class AMDGPUPassConfig : public TargetPassConfig { public: diff --git a/src/gallium/drivers/radeon/AMDGPUTargetMachine.h b/src/gallium/drivers/radeon/AMDGPUTargetMachine.h index 7c51ca50a3d..8b405a882cc 100644 --- a/src/gallium/drivers/radeon/AMDGPUTargetMachine.h +++ b/src/gallium/drivers/radeon/AMDGPUTargetMachine.h @@ -63,10 +63,6 @@ public: } virtual const TargetData* getTargetData() const { return &DataLayout; } virtual TargetPassConfig *createPassConfig(PassManagerBase &PM); - virtual bool addPassesToEmitFile(PassManagerBase &PM, - formatted_raw_ostream &Out, - CodeGenFileType FileType, - bool DisableVerify); }; } // End namespace llvm diff --git a/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.cpp b/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.cpp index 6da38a67305..bb447359a7a 100644 --- a/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.cpp +++ b/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.cpp @@ -57,6 +57,16 @@ static MCInstPrinter *createAMDGPUMCInstPrinter(const Target &T, return new AMDGPUInstPrinter(MAI, MII, MRI); } +static MCCodeEmitter *createAMDGPUMCCodeEmitter(const MCInstrInfo &MCII, + const MCSubtargetInfo &STI, + MCContext &Ctx) { + if (STI.getFeatureBits() & AMDGPU::Feature64BitPtr) { + return createSIMCCodeEmitter(MCII, STI, Ctx); + } else { + return createR600MCCodeEmitter(MCII, STI, Ctx); + } +} + static MCStreamer *createMCStreamer(const Target &T, StringRef TT, MCContext &Ctx, MCAsmBackend &MAB, raw_ostream &_OS, diff --git a/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.h b/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.h index d693ecc7069..3ff5daf8b61 100644 --- a/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.h +++ b/src/gallium/drivers/radeon/MCTargetDesc/AMDILMCTargetDesc.h @@ -28,9 +28,13 @@ class Target; extern Target TheAMDGPUTarget; -MCCodeEmitter *createAMDGPUMCCodeEmitter(const MCInstrInfo &MCII, - const MCSubtargetInfo &STI, - MCContext &Ctx); +MCCodeEmitter *createR600MCCodeEmitter(const MCInstrInfo &MCII, + const MCSubtargetInfo &STI, + MCContext &Ctx); + +MCCodeEmitter *createSIMCCodeEmitter(const MCInstrInfo &MCII, + const MCSubtargetInfo &STI, + MCContext &Ctx); MCAsmBackend *createAMDGPUAsmBackend(const Target &T, StringRef TT); } // End llvm namespace diff --git a/src/gallium/drivers/radeon/MCTargetDesc/R600MCCodeEmitter.cpp b/src/gallium/drivers/radeon/MCTargetDesc/R600MCCodeEmitter.cpp new file mode 100644 index 00000000000..99db28be3ab --- /dev/null +++ b/src/gallium/drivers/radeon/MCTargetDesc/R600MCCodeEmitter.cpp @@ -0,0 +1,703 @@ +//===- R600MCCodeEmitter.cpp - Code Emitter for R600->Cayman GPU families -===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This code emitters outputs bytecode that is understood by the r600g driver +// in the Mesa [1] project. The bytecode is very similar to the hardware's ISA, +// except that the size of the instruction fields are rounded up to the +// nearest byte. +// +// [1] http://www.mesa3d.org/ +// +//===----------------------------------------------------------------------===// + +#include "R600Defines.h" +#include "MCTargetDesc/AMDILMCTargetDesc.h" +#include "MCTargetDesc/AMDGPUMCCodeEmitter.h" +#include "llvm/MC/MCCodeEmitter.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCInst.h" +#include "llvm/MC/MCInstrInfo.h" +#include "llvm/MC/MCRegisterInfo.h" +#include "llvm/MC/MCSubtargetInfo.h" +#include "llvm/Support/raw_ostream.h" + +#include <stdio.h> + +#define SRC_BYTE_COUNT 11 +#define DST_BYTE_COUNT 5 + +using namespace llvm; + +namespace { + +class R600MCCodeEmitter : public AMDGPUMCCodeEmitter { + R600MCCodeEmitter(const R600MCCodeEmitter &); // DO NOT IMPLEMENT + void operator=(const R600MCCodeEmitter &); // DO NOT IMPLEMENT + const MCInstrInfo &MCII; + const MCSubtargetInfo &STI; + MCContext &Ctx; + +public: + + R600MCCodeEmitter(const MCInstrInfo &mcii, const MCSubtargetInfo &sti, + MCContext &ctx) + : MCII(mcii), STI(sti), Ctx(ctx) { } + + /// EncodeInstruction - Encode the instruction and write it to the OS. + virtual void EncodeInstruction(const MCInst &MI, raw_ostream &OS, + SmallVectorImpl<MCFixup> &Fixups) const; + + /// getMachineOpValue - Reutrn the encoding for an MCOperand. + virtual uint64_t getMachineOpValue(const MCInst &MI, const MCOperand &MO, + SmallVectorImpl<MCFixup> &Fixups) const; +private: + + void EmitALUInstr(const MCInst &MI, SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const; + void EmitSrc(const MCInst &MI, unsigned OpIdx, raw_ostream &OS) const; + void EmitDst(const MCInst &MI, raw_ostream &OS) const; + void EmitALU(const MCInst &MI, unsigned numSrc, + SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const; + void EmitTexInstr(const MCInst &MI, SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const; + void EmitFCInstr(const MCInst &MI, raw_ostream &OS) const; + + void EmitNullBytes(unsigned int byteCount, raw_ostream &OS) const; + + void EmitByte(unsigned int byte, raw_ostream &OS) const; + + void EmitTwoBytes(uint32_t bytes, raw_ostream &OS) const; + + void Emit(uint32_t value, raw_ostream &OS) const; + void Emit(uint64_t value, raw_ostream &OS) const; + + unsigned getHWRegIndex(unsigned reg) const; + unsigned getHWRegChan(unsigned reg) const; + unsigned getHWReg(unsigned regNo) const; + + bool isFCOp(unsigned opcode) const; + bool isTexOp(unsigned opcode) const; + bool isFlagSet(const MCInst &MI, unsigned Operand, unsigned Flag) const; + + /// getHWRegIndexGen - Get the register's hardware index. Implemented in + /// R600HwRegInfo.include. + unsigned getHWRegIndexGen(unsigned int Reg) const; + + /// getHWRegChanGen - Get the register's channel. Implemented in + /// R600HwRegInfo.include. + unsigned getHWRegChanGen(unsigned int Reg) const; +}; + +} // End anonymous namespace + +enum RegElement { + ELEMENT_X = 0, + ELEMENT_Y, + ELEMENT_Z, + ELEMENT_W +}; + +enum InstrTypes { + INSTR_ALU = 0, + INSTR_TEX, + INSTR_FC, + INSTR_NATIVE, + INSTR_VTX +}; + +enum FCInstr { + FC_IF = 0, + FC_IF_INT, + FC_ELSE, + FC_ENDIF, + FC_BGNLOOP, + FC_ENDLOOP, + FC_BREAK, + FC_BREAK_NZ_INT, + FC_CONTINUE, + FC_BREAK_Z_INT, + FC_BREAK_NZ +}; + +enum TextureTypes { + TEXTURE_1D = 1, + TEXTURE_2D, + TEXTURE_3D, + TEXTURE_CUBE, + TEXTURE_RECT, + TEXTURE_SHADOW1D, + TEXTURE_SHADOW2D, + TEXTURE_SHADOWRECT, + TEXTURE_1D_ARRAY, + TEXTURE_2D_ARRAY, + TEXTURE_SHADOW1D_ARRAY, + TEXTURE_SHADOW2D_ARRAY +}; + +MCCodeEmitter *llvm::createR600MCCodeEmitter(const MCInstrInfo &MCII, + const MCSubtargetInfo &STI, + MCContext &Ctx) { + return new R600MCCodeEmitter(MCII, STI, Ctx); +} + +void R600MCCodeEmitter::EncodeInstruction(const MCInst &MI, raw_ostream &OS, + SmallVectorImpl<MCFixup> &Fixups) const { +/* + if (MI.getNumOperands() > 1 && MI.getOperand(0).isReg() && + MI.getOperand(0).isDead()) { + return; + } +*/ + if (isTexOp(MI.getOpcode())) { + EmitTexInstr(MI, Fixups, OS); + } else if (isFCOp(MI.getOpcode())){ + EmitFCInstr(MI, OS); + } else if (MI.getOpcode() == AMDGPU::RETURN || + MI.getOpcode() == AMDGPU::BUNDLE || + MI.getOpcode() == AMDGPU::KILL) { + return; + } else { + switch(MI.getOpcode()) { + case AMDGPU::RAT_WRITE_CACHELESS_eg: + { + uint64_t inst = getBinaryCodeForInstr(MI, Fixups); + // XXX: Set End Of Program bit when necessary + // inst |= (((uint64_t)1) << 53); + EmitByte(INSTR_NATIVE, OS); + Emit(inst, OS); + break; + } + case AMDGPU::VTX_READ_PARAM_i32_eg: + case AMDGPU::VTX_READ_PARAM_f32_eg: + case AMDGPU::VTX_READ_GLOBAL_i32_eg: + case AMDGPU::VTX_READ_GLOBAL_f32_eg: + case AMDGPU::VTX_READ_GLOBAL_v4i32_eg: + case AMDGPU::VTX_READ_GLOBAL_v4f32_eg: + { + uint64_t InstWord01 = getBinaryCodeForInstr(MI, Fixups); + uint32_t InstWord2 = MI.getOperand(2).getImm(); // Offset + + EmitByte(INSTR_VTX, OS); + Emit(InstWord01, OS); + Emit(InstWord2, OS); + break; + } + + default: + EmitALUInstr(MI, Fixups, OS); + break; + } + } +} + +void R600MCCodeEmitter::EmitALUInstr(const MCInst &MI, + SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const { + const MCInstrDesc &MCDesc = MCII.get(MI.getOpcode()); + unsigned NumOperands = MI.getNumOperands(); + + if(MCDesc.findFirstPredOperandIdx() > -1) + NumOperands--; + + if (GET_FLAG_OPERAND_IDX(MCDesc.TSFlags) != 0) + NumOperands--; + + // Some instructions are just place holder instructions that represent + // operations that the GPU does automatically. They should be ignored. +// if (TII->isPlaceHolderOpcode(MI.getOpcode())) { +// return; +// } + + if(MI.getOpcode() == AMDGPU::PRED_X) + NumOperands = 2; + + // XXX Check if instruction writes a result + if (NumOperands < 1) { + return; + } + + // Emit instruction type + EmitByte(0, OS); + + unsigned int OpIndex; + for (OpIndex = 1; OpIndex < NumOperands; OpIndex++) { + // Literal constants are always stored as the last operand. + if (MI.getOperand(OpIndex).isImm() || MI.getOperand(OpIndex).isFPImm()) { + break; + } + EmitSrc(MI, OpIndex, OS); + } + + // Emit zeros for unused sources + for ( ; OpIndex < 4; OpIndex++) { + EmitNullBytes(SRC_BYTE_COUNT, OS); + } + + EmitDst(MI, OS); + + EmitALU(MI, NumOperands - 1, Fixups, OS); +} + +void R600MCCodeEmitter::EmitSrc(const MCInst &MI, unsigned OpIdx, + raw_ostream &OS) const { + const MCOperand &MO = MI.getOperand(OpIdx); + union { + float f; + uint32_t i; + } Value; + Value.i = 0; + // Emit the source select (2 bytes). For GPRs, this is the register index. + // For other potential instruction operands, (e.g. constant registers) the + // value of the source select is defined in the r600isa docs. + if (MO.isReg()) { + unsigned reg = MO.getReg(); + EmitTwoBytes(getHWReg(reg), OS); + if (reg == AMDGPU::ALU_LITERAL_X) { + unsigned ImmOpIndex = MI.getNumOperands() - 1; + MCOperand ImmOp = MI.getOperand(ImmOpIndex); + if (ImmOp.isFPImm()) { + Value.f = ImmOp.getFPImm(); + } else { + assert(ImmOp.isImm()); + Value.i = ImmOp.getImm(); + } + } + } else { + // XXX: Handle other operand types. + EmitTwoBytes(0, OS); + } + + // Emit the source channel (1 byte) + if (MO.isReg()) { + EmitByte(getHWRegChan(MO.getReg()), OS); + } else { + EmitByte(0, OS); + } + + // XXX: Emit isNegated (1 byte) + if ((!(isFlagSet(MI, OpIdx, MO_FLAG_ABS))) + && (isFlagSet(MI, OpIdx, MO_FLAG_NEG) || + (MO.isReg() && + (MO.getReg() == AMDGPU::NEG_ONE || MO.getReg() == AMDGPU::NEG_HALF)))){ + EmitByte(1, OS); + } else { + EmitByte(0, OS); + } + + // Emit isAbsolute (1 byte) + if (isFlagSet(MI, OpIdx, MO_FLAG_ABS)) { + EmitByte(1, OS); + } else { + EmitByte(0, OS); + } + + // XXX: Emit relative addressing mode (1 byte) + EmitByte(0, OS); + + // Emit kc_bank, This will be adjusted later by r600_asm + EmitByte(0, OS); + + // Emit the literal value, if applicable (4 bytes). + Emit(Value.i, OS); + +} + +void R600MCCodeEmitter::EmitDst(const MCInst &MI, raw_ostream &OS) const { + + const MCOperand &MO = MI.getOperand(0); + if (MO.isReg() && MO.getReg() != AMDGPU::PREDICATE_BIT) { + // Emit the destination register index (1 byte) + EmitByte(getHWReg(MO.getReg()), OS); + + // Emit the element of the destination register (1 byte) + EmitByte(getHWRegChan(MO.getReg()), OS); + + // Emit isClamped (1 byte) + if (isFlagSet(MI, 0, MO_FLAG_CLAMP)) { + EmitByte(1, OS); + } else { + EmitByte(0, OS); + } + + // Emit writemask (1 byte). + if (isFlagSet(MI, 0, MO_FLAG_MASK)) { + EmitByte(0, OS); + } else { + EmitByte(1, OS); + } + + // XXX: Emit relative addressing mode + EmitByte(0, OS); + } else { + // XXX: Handle other operand types. Are there any for destination regs? + EmitNullBytes(DST_BYTE_COUNT, OS); + } +} + +void R600MCCodeEmitter::EmitALU(const MCInst &MI, unsigned numSrc, + SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const { + const MCInstrDesc &MCDesc = MCII.get(MI.getOpcode()); + + // Emit the instruction (2 bytes) + EmitTwoBytes(getBinaryCodeForInstr(MI, Fixups), OS); + + // Emit IsLast (for this instruction group) (1 byte) + if (isFlagSet(MI, 0, MO_FLAG_NOT_LAST)) { + EmitByte(0, OS); + } else { + EmitByte(1, OS); + } + + // Emit isOp3 (1 byte) + if (numSrc == 3) { + EmitByte(1, OS); + } else { + EmitByte(0, OS); + } + + // XXX: Emit push modifier + if(isFlagSet(MI, 1, MO_FLAG_PUSH)) { + EmitByte(1, OS); + } else { + EmitByte(0, OS); + } + + // XXX: Emit predicate (1 byte) + int PredIdx = MCDesc.findFirstPredOperandIdx(); + if (PredIdx > -1) + switch(MI.getOperand(PredIdx).getReg()) { + case AMDGPU::PRED_SEL_ZERO: + EmitByte(2, OS); + break; + case AMDGPU::PRED_SEL_ONE: + EmitByte(3, OS); + break; + default: + EmitByte(0, OS); + break; + } + else { + EmitByte(0, OS); + } + + + // XXX: Emit bank swizzle. (1 byte) Do we need this? It looks like + // r600_asm.c sets it. + EmitByte(0, OS); + + // XXX: Emit bank_swizzle_force (1 byte) Not sure what this is for. + EmitByte(0, OS); + + // XXX: Emit OMOD (1 byte) Not implemented. + EmitByte(0, OS); + + // XXX: Emit index_mode. I think this is for indirect addressing, so we + // don't need to worry about it. + EmitByte(0, OS); +} + +void R600MCCodeEmitter::EmitTexInstr(const MCInst &MI, + SmallVectorImpl<MCFixup> &Fixups, + raw_ostream &OS) const { + + unsigned opcode = MI.getOpcode(); + bool hasOffsets = (opcode == AMDGPU::TEX_LD); + unsigned op_offset = hasOffsets ? 3 : 0; + int64_t sampler = MI.getOperand(op_offset+2).getImm(); + int64_t textureType = MI.getOperand(op_offset+3).getImm(); + unsigned srcSelect[4] = {0, 1, 2, 3}; + + // Emit instruction type + EmitByte(1, OS); + + // Emit instruction + EmitByte(getBinaryCodeForInstr(MI, Fixups), OS); + + // XXX: Emit resource id r600_shader.c uses sampler + 1. Why? + EmitByte(sampler + 1 + 1, OS); + + // Emit source register + EmitByte(getHWReg(MI.getOperand(1).getReg()), OS); + + // XXX: Emit src isRelativeAddress + EmitByte(0, OS); + + // Emit destination register + EmitByte(getHWReg(MI.getOperand(0).getReg()), OS); + + // XXX: Emit dst isRealtiveAddress + EmitByte(0, OS); + + // XXX: Emit dst select + EmitByte(0, OS); // X + EmitByte(1, OS); // Y + EmitByte(2, OS); // Z + EmitByte(3, OS); // W + + // XXX: Emit lod bias + EmitByte(0, OS); + + // XXX: Emit coord types + unsigned coordType[4] = {1, 1, 1, 1}; + + if (textureType == TEXTURE_RECT + || textureType == TEXTURE_SHADOWRECT) { + coordType[ELEMENT_X] = 0; + coordType[ELEMENT_Y] = 0; + } + + if (textureType == TEXTURE_1D_ARRAY + || textureType == TEXTURE_SHADOW1D_ARRAY) { + if (opcode == AMDGPU::TEX_SAMPLE_C_L || opcode == AMDGPU::TEX_SAMPLE_C_LB) { + coordType[ELEMENT_Y] = 0; + } else { + coordType[ELEMENT_Z] = 0; + srcSelect[ELEMENT_Z] = ELEMENT_Y; + } + } else if (textureType == TEXTURE_2D_ARRAY + || textureType == TEXTURE_SHADOW2D_ARRAY) { + coordType[ELEMENT_Z] = 0; + } + + for (unsigned i = 0; i < 4; i++) { + EmitByte(coordType[i], OS); + } + + // XXX: Emit offsets + if (hasOffsets) + for (unsigned i = 2; i < 5; i++) + EmitByte(MI.getOperand(i).getImm()<<1, OS); + else + EmitNullBytes(3, OS); + + // Emit sampler id + EmitByte(sampler, OS); + + // XXX:Emit source select + if ((textureType == TEXTURE_SHADOW1D + || textureType == TEXTURE_SHADOW2D + || textureType == TEXTURE_SHADOWRECT + || textureType == TEXTURE_SHADOW1D_ARRAY) + && opcode != AMDGPU::TEX_SAMPLE_C_L + && opcode != AMDGPU::TEX_SAMPLE_C_LB) { + srcSelect[ELEMENT_W] = ELEMENT_Z; + } + + for (unsigned i = 0; i < 4; i++) { + EmitByte(srcSelect[i], OS); + } +} + +void R600MCCodeEmitter::EmitFCInstr(const MCInst &MI, raw_ostream &OS) const { + + // Emit instruction type + EmitByte(INSTR_FC, OS); + + // Emit SRC + unsigned NumOperands = MI.getNumOperands(); + if (NumOperands > 0) { + assert(NumOperands == 1); + EmitSrc(MI, 0, OS); + } else { + EmitNullBytes(SRC_BYTE_COUNT, OS); + } + + // Emit FC Instruction + enum FCInstr instr; + switch (MI.getOpcode()) { + case AMDGPU::BREAK_LOGICALZ_f32: + instr = FC_BREAK; + break; + case AMDGPU::BREAK_LOGICALNZ_f32: + instr = FC_BREAK_NZ; + break; + case AMDGPU::BREAK_LOGICALNZ_i32: + instr = FC_BREAK_NZ_INT; + break; + case AMDGPU::BREAK_LOGICALZ_i32: + instr = FC_BREAK_Z_INT; + break; + case AMDGPU::CONTINUE_LOGICALNZ_f32: + case AMDGPU::CONTINUE_LOGICALNZ_i32: + instr = FC_CONTINUE; + break; + case AMDGPU::IF_LOGICALNZ_f32: + instr = FC_IF; + case AMDGPU::IF_LOGICALNZ_i32: + instr = FC_IF_INT; + break; + case AMDGPU::IF_LOGICALZ_f32: + abort(); + break; + case AMDGPU::ELSE: + instr = FC_ELSE; + break; + case AMDGPU::ENDIF: + instr = FC_ENDIF; + break; + case AMDGPU::ENDLOOP: + instr = FC_ENDLOOP; + break; + case AMDGPU::WHILELOOP: + instr = FC_BGNLOOP; + break; + default: + abort(); + break; + } + EmitByte(instr, OS); +} + +void R600MCCodeEmitter::EmitNullBytes(unsigned int ByteCount, + raw_ostream &OS) const { + + for (unsigned int i = 0; i < ByteCount; i++) { + EmitByte(0, OS); + } +} + +void R600MCCodeEmitter::EmitByte(unsigned int Byte, raw_ostream &OS) const { + OS.write((uint8_t) Byte & 0xff); +} + +void R600MCCodeEmitter::EmitTwoBytes(unsigned int Bytes, + raw_ostream &OS) const { + OS.write((uint8_t) (Bytes & 0xff)); + OS.write((uint8_t) ((Bytes >> 8) & 0xff)); +} + +void R600MCCodeEmitter::Emit(uint32_t Value, raw_ostream &OS) const { + for (unsigned i = 0; i < 4; i++) { + OS.write((uint8_t) ((Value >> (8 * i)) & 0xff)); + } +} + +void R600MCCodeEmitter::Emit(uint64_t Value, raw_ostream &OS) const { + for (unsigned i = 0; i < 8; i++) { + EmitByte((Value >> (8 * i)) & 0xff, OS); + } +} + +unsigned R600MCCodeEmitter::getHWRegIndex(unsigned reg) const { + switch(reg) { + case AMDGPU::ZERO: return 248; + case AMDGPU::ONE: + case AMDGPU::NEG_ONE: return 249; + case AMDGPU::ONE_INT: return 250; + case AMDGPU::HALF: + case AMDGPU::NEG_HALF: return 252; + case AMDGPU::ALU_LITERAL_X: return 253; + case AMDGPU::PREDICATE_BIT: + case AMDGPU::PRED_SEL_OFF: + case AMDGPU::PRED_SEL_ZERO: + case AMDGPU::PRED_SEL_ONE: + return 0; + default: return getHWRegIndexGen(reg); + } +} + +unsigned R600MCCodeEmitter::getHWRegChan(unsigned reg) const { + switch(reg) { + case AMDGPU::ZERO: + case AMDGPU::ONE: + case AMDGPU::ONE_INT: + case AMDGPU::NEG_ONE: + case AMDGPU::HALF: + case AMDGPU::NEG_HALF: + case AMDGPU::ALU_LITERAL_X: + case AMDGPU::PREDICATE_BIT: + case AMDGPU::PRED_SEL_OFF: + case AMDGPU::PRED_SEL_ZERO: + case AMDGPU::PRED_SEL_ONE: + return 0; + default: return getHWRegChanGen(reg); + } +} +unsigned R600MCCodeEmitter::getHWReg(unsigned RegNo) const { + unsigned HWReg; + + HWReg = getHWRegIndex(RegNo); + if (AMDGPUMCRegisterClasses[AMDGPU::R600_CReg32RegClassID].contains(RegNo)) { + HWReg += 512; + } + return HWReg; +} + +uint64_t R600MCCodeEmitter::getMachineOpValue(const MCInst &MI, + const MCOperand &MO, + SmallVectorImpl<MCFixup> &Fixup) const { + if (MO.isReg()) { + return getHWReg(MO.getReg()); + } else { + return MO.getImm(); + } +} + +//===----------------------------------------------------------------------===// +// Encoding helper functions +//===----------------------------------------------------------------------===// + +bool R600MCCodeEmitter::isFCOp(unsigned opcode) const { + switch(opcode) { + default: return false; + case AMDGPU::BREAK_LOGICALZ_f32: + case AMDGPU::BREAK_LOGICALNZ_i32: + case AMDGPU::BREAK_LOGICALZ_i32: + case AMDGPU::BREAK_LOGICALNZ_f32: + case AMDGPU::CONTINUE_LOGICALNZ_f32: + case AMDGPU::IF_LOGICALNZ_i32: + case AMDGPU::IF_LOGICALZ_f32: + case AMDGPU::ELSE: + case AMDGPU::ENDIF: + case AMDGPU::ENDLOOP: + case AMDGPU::IF_LOGICALNZ_f32: + case AMDGPU::WHILELOOP: + return true; + } +} + +bool R600MCCodeEmitter::isTexOp(unsigned opcode) const { + switch(opcode) { + default: return false; + case AMDGPU::TEX_LD: + case AMDGPU::TEX_GET_TEXTURE_RESINFO: + case AMDGPU::TEX_SAMPLE: + case AMDGPU::TEX_SAMPLE_C: + case AMDGPU::TEX_SAMPLE_L: + case AMDGPU::TEX_SAMPLE_C_L: + case AMDGPU::TEX_SAMPLE_LB: + case AMDGPU::TEX_SAMPLE_C_LB: + case AMDGPU::TEX_SAMPLE_G: + case AMDGPU::TEX_SAMPLE_C_G: + case AMDGPU::TEX_GET_GRADIENTS_H: + case AMDGPU::TEX_GET_GRADIENTS_V: + case AMDGPU::TEX_SET_GRADIENTS_H: + case AMDGPU::TEX_SET_GRADIENTS_V: + return true; + } +} + +bool R600MCCodeEmitter::isFlagSet(const MCInst &MI, unsigned Operand, + unsigned Flag) const { + const MCInstrDesc &MCDesc = MCII.get(MI.getOpcode()); + unsigned FlagIndex = GET_FLAG_OPERAND_IDX(MCDesc.TSFlags); + if (FlagIndex == 0) { + return false; + } + assert(MI.getOperand(FlagIndex).isImm()); + return !!((MI.getOperand(FlagIndex).getImm() >> + (NUM_MO_FLAGS * Operand)) & Flag); +} +#define R600RegisterInfo R600MCCodeEmitter +#include "R600HwRegInfo.include" +#undef R600RegisterInfo + +#include "AMDGPUGenMCCodeEmitter.inc" diff --git a/src/gallium/drivers/radeon/MCTargetDesc/SIMCCodeEmitter.cpp b/src/gallium/drivers/radeon/MCTargetDesc/SIMCCodeEmitter.cpp index 1d7e84fdc5c..3d923055a59 100644 --- a/src/gallium/drivers/radeon/MCTargetDesc/SIMCCodeEmitter.cpp +++ b/src/gallium/drivers/radeon/MCTargetDesc/SIMCCodeEmitter.cpp @@ -127,14 +127,10 @@ private: } // End anonymous namespace -MCCodeEmitter *llvm::createAMDGPUMCCodeEmitter(const MCInstrInfo &MCII, - const MCSubtargetInfo &STI, - MCContext &Ctx) { - if (STI.getFeatureBits() & AMDGPU::Feature64BitPtr) { - return new SIMCCodeEmitter(MCII, STI, Ctx); - } else { - return NULL; - } +MCCodeEmitter *llvm::createSIMCCodeEmitter(const MCInstrInfo &MCII, + const MCSubtargetInfo &STI, + MCContext &Ctx) { + return new SIMCCodeEmitter(MCII, STI, Ctx); } void SIMCCodeEmitter::EncodeInstruction(const MCInst &MI, raw_ostream &OS, @@ -305,5 +301,3 @@ unsigned SIMCCodeEmitter::getRegBinaryCode(unsigned reg) const { #define SIRegisterInfo SIMCCodeEmitter #include "SIRegisterGetHWRegNum.inc" #undef SIRegisterInfo - -#include "AMDGPUGenMCCodeEmitter.inc" diff --git a/src/gallium/drivers/radeon/Makefile.sources b/src/gallium/drivers/radeon/Makefile.sources index f80b8bf703f..4784fec7114 100644 --- a/src/gallium/drivers/radeon/Makefile.sources +++ b/src/gallium/drivers/radeon/Makefile.sources @@ -37,7 +37,6 @@ CPP_SOURCES := \ AMDGPUConvertToISA.cpp \ AMDGPUInstrInfo.cpp \ AMDGPURegisterInfo.cpp \ - R600CodeEmitter.cpp \ R600ExpandSpecialInstrs.cpp \ R600ISelLowering.cpp \ R600InstrInfo.cpp \ @@ -54,6 +53,7 @@ CPP_SOURCES := \ MCTargetDesc/AMDGPUAsmBackend.cpp \ MCTargetDesc/AMDILMCTargetDesc.cpp \ MCTargetDesc/SIMCCodeEmitter.cpp \ + MCTargetDesc/R600MCCodeEmitter.cpp \ TargetInfo/AMDILTargetInfo.cpp \ radeon_llvm_emit.cpp diff --git a/src/gallium/drivers/radeon/R600CodeEmitter.cpp b/src/gallium/drivers/radeon/R600CodeEmitter.cpp deleted file mode 100644 index 9e76cb1e5c2..00000000000 --- a/src/gallium/drivers/radeon/R600CodeEmitter.cpp +++ /dev/null @@ -1,618 +0,0 @@ -//===-- R600CodeEmitter.cpp - Code Emitter for R600->Cayman GPU families --===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This code emitters outputs bytecode that is understood by the r600g driver -// in the Mesa [1] project. The bytecode is very similar to the hardware's ISA, -// except that the size of the instruction fields are rounded up to the -// nearest byte. -// -// [1] http://www.mesa3d.org/ -// -//===----------------------------------------------------------------------===// - -#include "AMDGPU.h" -#include "AMDGPUCodeEmitter.h" -#include "AMDGPUInstrInfo.h" -#include "AMDILUtilityFunctions.h" -#include "R600InstrInfo.h" -#include "R600RegisterInfo.h" -#include "llvm/CodeGen/MachineFunctionPass.h" -#include "llvm/CodeGen/MachineInstrBuilder.h" -#include "llvm/CodeGen/MachineRegisterInfo.h" -#include "llvm/Support/DataTypes.h" -#include "llvm/Support/FormattedStream.h" -#include "llvm/Target/TargetMachine.h" - -#include <stdio.h> - -#define SRC_BYTE_COUNT 11 -#define DST_BYTE_COUNT 5 - -using namespace llvm; - -namespace { - -class R600CodeEmitter : public MachineFunctionPass, public AMDGPUCodeEmitter { - -private: - - static char ID; - formatted_raw_ostream &_OS; - const TargetMachine * TM; - const MachineRegisterInfo * MRI; - const R600RegisterInfo * TRI; - const R600InstrInfo * TII; - - unsigned currentElement; - - unsigned section_start; - -public: - - R600CodeEmitter(formatted_raw_ostream &OS) : MachineFunctionPass(ID), - _OS(OS), TM(NULL) { } - - const char *getPassName() const { return "AMDGPU Machine Code Emitter"; } - - bool runOnMachineFunction(MachineFunction &MF); - virtual uint64_t getMachineOpValue(const MachineInstr &MI, - const MachineOperand &MO) const; - -private: - - void EmitALUInstr(MachineInstr &MI); - void EmitSrc(const MachineOperand & MO, unsigned SrcIdx); - void EmitDst(const MachineOperand & MO); - void EmitALU(MachineInstr &MI, unsigned numSrc); - void EmitTexInstr(MachineInstr &MI); - void EmitFCInstr(MachineInstr &MI); - - void EmitNullBytes(unsigned int byteCount); - - void EmitByte(unsigned int byte); - - void EmitTwoBytes(uint32_t bytes); - - void Emit(uint32_t value); - void Emit(uint64_t value); - - unsigned getHWReg(unsigned regNo) const; - -}; - -} // End anonymous namespace - -enum RegElement { - ELEMENT_X = 0, - ELEMENT_Y, - ELEMENT_Z, - ELEMENT_W -}; - -enum InstrTypes { - INSTR_ALU = 0, - INSTR_TEX, - INSTR_FC, - INSTR_NATIVE, - INSTR_VTX -}; - -enum FCInstr { - FC_IF = 0, - FC_IF_INT, - FC_ELSE, - FC_ENDIF, - FC_BGNLOOP, - FC_ENDLOOP, - FC_BREAK, - FC_BREAK_NZ_INT, - FC_CONTINUE, - FC_BREAK_Z_INT, - FC_BREAK_NZ -}; - -enum TextureTypes { - TEXTURE_1D = 1, - TEXTURE_2D, - TEXTURE_3D, - TEXTURE_CUBE, - TEXTURE_RECT, - TEXTURE_SHADOW1D, - TEXTURE_SHADOW2D, - TEXTURE_SHADOWRECT, - TEXTURE_1D_ARRAY, - TEXTURE_2D_ARRAY, - TEXTURE_SHADOW1D_ARRAY, - TEXTURE_SHADOW2D_ARRAY -}; - -char R600CodeEmitter::ID = 0; - -FunctionPass *llvm::createR600CodeEmitterPass(formatted_raw_ostream &OS) { - return new R600CodeEmitter(OS); -} - -bool R600CodeEmitter::runOnMachineFunction(MachineFunction &MF) { - - TM = &MF.getTarget(); - MRI = &MF.getRegInfo(); - TRI = static_cast<const R600RegisterInfo *>(TM->getRegisterInfo()); - TII = static_cast<const R600InstrInfo *>(TM->getInstrInfo()); - const AMDGPUSubtarget &STM = TM->getSubtarget<AMDGPUSubtarget>(); - std::string gpu = STM.getDeviceName(); - - if (STM.dumpCode()) { - MF.dump(); - } - - for (MachineFunction::iterator BB = MF.begin(), BB_E = MF.end(); - BB != BB_E; ++BB) { - MachineBasicBlock &MBB = *BB; - for (MachineBasicBlock::instr_iterator I = MBB.instr_begin(), - E = MBB.instr_end(); I != E; ++I) { - MachineInstr &MI = *I; - if (MI.getNumOperands() > 1 && MI.getOperand(0).isReg() && MI.getOperand(0).isDead()) { - continue; - } - if (TII->isTexOp(MI.getOpcode())) { - EmitTexInstr(MI); - } else if (TII->isFCOp(MI.getOpcode())){ - EmitFCInstr(MI); - } else if (MI.getOpcode() == AMDGPU::RETURN || - MI.getOpcode() == AMDGPU::BUNDLE || - MI.getOpcode() == AMDGPU::KILL) { - continue; - } else { - switch(MI.getOpcode()) { - case AMDGPU::RAT_WRITE_CACHELESS_eg: - { - uint64_t inst = getBinaryCodeForInstr(MI); - // Set End Of Program bit - // XXX: Need better check of end of program. EOP should be - // encoded in one of the operands of the MI, and it should be - // set in a prior pass. - MachineBasicBlock::iterator NextI = llvm::next(I); - MachineInstr &NextMI = *NextI; - if (NextMI.getOpcode() == AMDGPU::RETURN) { - inst |= (((uint64_t)1) << 53); - } - EmitByte(INSTR_NATIVE); - Emit(inst); - break; - } - case AMDGPU::VTX_READ_PARAM_i32_eg: - case AMDGPU::VTX_READ_PARAM_f32_eg: - case AMDGPU::VTX_READ_GLOBAL_i32_eg: - case AMDGPU::VTX_READ_GLOBAL_f32_eg: - case AMDGPU::VTX_READ_GLOBAL_v4i32_eg: - case AMDGPU::VTX_READ_GLOBAL_v4f32_eg: - { - uint64_t InstWord01 = getBinaryCodeForInstr(MI); - uint32_t InstWord2 = MI.getOperand(2).getImm(); // Offset - - EmitByte(INSTR_VTX); - Emit(InstWord01); - Emit(InstWord2); - break; - } - - default: - EmitALUInstr(MI); - break; - } - } - } - } - return false; -} - -void R600CodeEmitter::EmitALUInstr(MachineInstr &MI) -{ - - unsigned numOperands = MI.getNumExplicitOperands(); - if(MI.findFirstPredOperandIdx() > -1) - numOperands--; - if (TII->HasFlagOperand(MI)) - numOperands--; - - // Some instructions are just place holder instructions that represent - // operations that the GPU does automatically. They should be ignored. - if (TII->isPlaceHolderOpcode(MI.getOpcode())) { - return; - } - - if(MI.getOpcode() == AMDGPU::PRED_X) - numOperands = 2; - - // XXX Check if instruction writes a result - if (numOperands < 1) { - return; - } - const MachineOperand dstOp = MI.getOperand(0); - - // Emit instruction type - EmitByte(0); - - unsigned int opIndex; - for (opIndex = 1; opIndex < numOperands; opIndex++) { - // Literal constants are always stored as the last operand. - if (MI.getOperand(opIndex).isImm() || MI.getOperand(opIndex).isFPImm()) { - break; - } - EmitSrc(MI.getOperand(opIndex), opIndex); - } - - // Emit zeros for unused sources - for ( ; opIndex < 4; opIndex++) { - EmitNullBytes(SRC_BYTE_COUNT); - } - - EmitDst(dstOp); - - EmitALU(MI, numOperands - 1); -} - -void R600CodeEmitter::EmitSrc(const MachineOperand & MO, unsigned SrcIdx) -{ - const MachineInstr *MI = MO.getParent(); - uint32_t value = 0; - // Emit the source select (2 bytes). For GPRs, this is the register index. - // For other potential instruction operands, (e.g. constant registers) the - // value of the source select is defined in the r600isa docs. - if (MO.isReg()) { - unsigned reg = MO.getReg(); - EmitTwoBytes(getHWReg(reg)); - if (reg == AMDGPU::ALU_LITERAL_X) { - const MachineInstr * parent = MO.getParent(); - unsigned immOpIndex = parent->getNumExplicitOperands() - 1; - MachineOperand immOp = parent->getOperand(immOpIndex); - if (immOp.isFPImm()) { - value = immOp.getFPImm()->getValueAPF().bitcastToAPInt().getZExtValue(); - } else { - assert(immOp.isImm()); - value = immOp.getImm(); - } - } - } else { - // XXX: Handle other operand types. - EmitTwoBytes(0); - } - - // Emit the source channel (1 byte) - if (MO.isReg()) { - EmitByte(TRI->getHWRegChan(MO.getReg())); - } else { - EmitByte(0); - } - - // XXX: Emit isNegated (1 byte) - if ((!(TII->IsFlagSet(*MI, SrcIdx, MO_FLAG_ABS))) - && (TII->IsFlagSet(*MI, SrcIdx, MO_FLAG_NEG) || - (MO.isReg() && - (MO.getReg() == AMDGPU::NEG_ONE || MO.getReg() == AMDGPU::NEG_HALF)))){ - EmitByte(1); - } else { - EmitByte(0); - } - - // Emit isAbsolute (1 byte) - if (TII->IsFlagSet(*MI, SrcIdx, MO_FLAG_ABS)) { - EmitByte(1); - } else { - EmitByte(0); - } - - // XXX: Emit relative addressing mode (1 byte) - EmitByte(0); - - // Emit kc_bank, This will be adjusted later by r600_asm - EmitByte(0); - - // Emit the literal value, if applicable (4 bytes). - Emit(value); - -} - -void R600CodeEmitter::EmitDst(const MachineOperand & MO) -{ - const MachineInstr *MI = MO.getParent(); - if (MO.isReg() && MO.getReg() != AMDGPU::PREDICATE_BIT) { - // Emit the destination register index (1 byte) - EmitByte(getHWReg(MO.getReg())); - - // Emit the element of the destination register (1 byte) - EmitByte(TRI->getHWRegChan(MO.getReg())); - - // Emit isClamped (1 byte) - if (TII->IsFlagSet(*MI, 0, MO_FLAG_CLAMP)) { - EmitByte(1); - } else { - EmitByte(0); - } - - // Emit writemask (1 byte). - if (TII->IsFlagSet(*MI, 0, MO_FLAG_MASK)) { - EmitByte(0); - } else { - EmitByte(1); - } - - // XXX: Emit relative addressing mode - EmitByte(0); - } else { - // XXX: Handle other operand types. Are there any for destination regs? - EmitNullBytes(DST_BYTE_COUNT); - } -} - -void R600CodeEmitter::EmitALU(MachineInstr &MI, unsigned numSrc) -{ - // Emit the instruction (2 bytes) - EmitTwoBytes(getBinaryCodeForInstr(MI)); - - // Emit IsLast (for this instruction group) (1 byte) - if (MI.isInsideBundle() && !TII->IsFlagSet(MI, 0, MO_FLAG_LAST)) { - EmitByte(0); - } else { - EmitByte(1); - } - - // Emit isOp3 (1 byte) - if (numSrc == 3) { - EmitByte(1); - } else { - EmitByte(0); - } - - // XXX: Emit push modifier - if(MI.getOperand(1).getTargetFlags() & MO_FLAG_PUSH) { - EmitByte(1); - } else { - EmitByte(0); - } - - // XXX: Emit predicate (1 byte) - int predidx = MI.findFirstPredOperandIdx(); - if (predidx > -1) - switch(MI.getOperand(predidx).getReg()) { - case AMDGPU::PRED_SEL_ZERO: - EmitByte(2); - break; - case AMDGPU::PRED_SEL_ONE: - EmitByte(3); - break; - default: - EmitByte(0); - break; - } - else { - EmitByte(0); - } - - - // XXX: Emit bank swizzle. (1 byte) Do we need this? It looks like - // r600_asm.c sets it. - EmitByte(0); - - // XXX: Emit bank_swizzle_force (1 byte) Not sure what this is for. - EmitByte(0); - - // XXX: Emit OMOD (1 byte) Not implemented. - EmitByte(0); - - // XXX: Emit index_mode. I think this is for indirect addressing, so we - // don't need to worry about it. - EmitByte(0); -} - -void R600CodeEmitter::EmitTexInstr(MachineInstr &MI) -{ - - unsigned opcode = MI.getOpcode(); - bool hasOffsets = (opcode == AMDGPU::TEX_LD); - unsigned op_offset = hasOffsets ? 3 : 0; - int64_t sampler = MI.getOperand(op_offset+2).getImm(); - int64_t textureType = MI.getOperand(op_offset+3).getImm(); - unsigned srcSelect[4] = {0, 1, 2, 3}; - - // Emit instruction type - EmitByte(1); - - // Emit instruction - EmitByte(getBinaryCodeForInstr(MI)); - - // XXX: Emit resource id r600_shader.c uses sampler + 1. Why? - EmitByte(sampler + 1 + 1); - - // Emit source register - EmitByte(getHWReg(MI.getOperand(1).getReg())); - - // XXX: Emit src isRelativeAddress - EmitByte(0); - - // Emit destination register - EmitByte(getHWReg(MI.getOperand(0).getReg())); - - // XXX: Emit dst isRealtiveAddress - EmitByte(0); - - // XXX: Emit dst select - EmitByte(0); // X - EmitByte(1); // Y - EmitByte(2); // Z - EmitByte(3); // W - - // XXX: Emit lod bias - EmitByte(0); - - // XXX: Emit coord types - unsigned coordType[4] = {1, 1, 1, 1}; - - if (textureType == TEXTURE_RECT - || textureType == TEXTURE_SHADOWRECT) { - coordType[ELEMENT_X] = 0; - coordType[ELEMENT_Y] = 0; - } - - if (textureType == TEXTURE_1D_ARRAY - || textureType == TEXTURE_SHADOW1D_ARRAY) { - if (opcode == AMDGPU::TEX_SAMPLE_C_L || opcode == AMDGPU::TEX_SAMPLE_C_LB) { - coordType[ELEMENT_Y] = 0; - } else { - coordType[ELEMENT_Z] = 0; - srcSelect[ELEMENT_Z] = ELEMENT_Y; - } - } else if (textureType == TEXTURE_2D_ARRAY - || textureType == TEXTURE_SHADOW2D_ARRAY) { - coordType[ELEMENT_Z] = 0; - } - - for (unsigned i = 0; i < 4; i++) { - EmitByte(coordType[i]); - } - - // XXX: Emit offsets - if (hasOffsets) - for (unsigned i = 2; i < 5; i++) - EmitByte(MI.getOperand(i).getImm()<<1); - else - EmitNullBytes(3); - - // Emit sampler id - EmitByte(sampler); - - // XXX:Emit source select - if ((textureType == TEXTURE_SHADOW1D - || textureType == TEXTURE_SHADOW2D - || textureType == TEXTURE_SHADOWRECT - || textureType == TEXTURE_SHADOW1D_ARRAY) - && opcode != AMDGPU::TEX_SAMPLE_C_L - && opcode != AMDGPU::TEX_SAMPLE_C_LB) { - srcSelect[ELEMENT_W] = ELEMENT_Z; - } - - for (unsigned i = 0; i < 4; i++) { - EmitByte(srcSelect[i]); - } -} - -void R600CodeEmitter::EmitFCInstr(MachineInstr &MI) -{ - // Emit instruction type - EmitByte(INSTR_FC); - - // Emit SRC - unsigned numOperands = MI.getNumOperands(); - if (numOperands > 0) { - assert(numOperands == 1); - EmitSrc(MI.getOperand(0), 0); - } else { - EmitNullBytes(SRC_BYTE_COUNT); - } - - // Emit FC Instruction - enum FCInstr instr; - switch (MI.getOpcode()) { - case AMDGPU::BREAK_LOGICALZ_f32: - instr = FC_BREAK; - break; - case AMDGPU::BREAK_LOGICALNZ_f32: - instr = FC_BREAK_NZ; - break; - case AMDGPU::BREAK_LOGICALNZ_i32: - instr = FC_BREAK_NZ_INT; - break; - case AMDGPU::BREAK_LOGICALZ_i32: - instr = FC_BREAK_Z_INT; - break; - case AMDGPU::CONTINUE_LOGICALNZ_f32: - case AMDGPU::CONTINUE_LOGICALNZ_i32: - instr = FC_CONTINUE; - break; - case AMDGPU::IF_LOGICALNZ_f32: - instr = FC_IF; - case AMDGPU::IF_LOGICALNZ_i32: - instr = FC_IF_INT; - break; - case AMDGPU::IF_LOGICALZ_f32: - abort(); - break; - case AMDGPU::ELSE: - instr = FC_ELSE; - break; - case AMDGPU::ENDIF: - instr = FC_ENDIF; - break; - case AMDGPU::ENDLOOP: - instr = FC_ENDLOOP; - break; - case AMDGPU::WHILELOOP: - instr = FC_BGNLOOP; - break; - default: - abort(); - break; - } - EmitByte(instr); -} - -void R600CodeEmitter::EmitNullBytes(unsigned int byteCount) -{ - for (unsigned int i = 0; i < byteCount; i++) { - EmitByte(0); - } -} - -void R600CodeEmitter::EmitByte(unsigned int byte) -{ - _OS.write((uint8_t) byte & 0xff); -} -void R600CodeEmitter::EmitTwoBytes(unsigned int bytes) -{ - _OS.write((uint8_t) (bytes & 0xff)); - _OS.write((uint8_t) ((bytes >> 8) & 0xff)); -} - -void R600CodeEmitter::Emit(uint32_t value) -{ - for (unsigned i = 0; i < 4; i++) { - _OS.write((uint8_t) ((value >> (8 * i)) & 0xff)); - } -} - -void R600CodeEmitter::Emit(uint64_t value) -{ - for (unsigned i = 0; i < 8; i++) { - EmitByte((value >> (8 * i)) & 0xff); - } -} - -unsigned R600CodeEmitter::getHWReg(unsigned regNo) const -{ - unsigned HWReg; - - HWReg = TRI->getHWRegIndex(regNo); - if (AMDGPU::R600_CReg32RegClass.contains(regNo)) { - HWReg += 512; - } - return HWReg; -} - -uint64_t R600CodeEmitter::getMachineOpValue(const MachineInstr &MI, - const MachineOperand &MO) const -{ - if (MO.isReg()) { - return getHWReg(MO.getReg()); - } else { - return MO.getImm(); - } -} - -#include "AMDGPUGenCodeEmitter.inc" - diff --git a/src/gallium/drivers/radeon/R600Defines.h b/src/gallium/drivers/radeon/R600Defines.h new file mode 100644 index 00000000000..655b9844592 --- /dev/null +++ b/src/gallium/drivers/radeon/R600Defines.h @@ -0,0 +1,23 @@ +//===-- R600Defines.h - R600 Helper Macros ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + + +// Operand Flags +#define MO_FLAG_CLAMP (1 << 0) +#define MO_FLAG_NEG (1 << 1) +#define MO_FLAG_ABS (1 << 2) +#define MO_FLAG_MASK (1 << 3) +#define MO_FLAG_PUSH (1 << 4) +#define MO_FLAG_NOT_LAST (1 << 5) +#define NUM_MO_FLAGS 6 + +// Helper for finding getting the operand index for the instruction flags +// operand. +#define GET_FLAG_OPERAND_IDX(Flags) (((Flags) >> 7) & 0x3) + diff --git a/src/gallium/drivers/radeon/R600ExpandSpecialInstrs.cpp b/src/gallium/drivers/radeon/R600ExpandSpecialInstrs.cpp index 93229370d2a..437d5daf309 100644 --- a/src/gallium/drivers/radeon/R600ExpandSpecialInstrs.cpp +++ b/src/gallium/drivers/radeon/R600ExpandSpecialInstrs.cpp @@ -12,6 +12,7 @@ //===----------------------------------------------------------------------===// #include "AMDGPU.h" +#include "R600Defines.h" #include "R600InstrInfo.h" #include "R600RegisterInfo.h" #include "llvm/CodeGen/MachineFunctionPass.h" @@ -126,7 +127,7 @@ bool R600ExpandSpecialInstrsPass::runOnMachineFunction(MachineFunction &MF) { } // Set the IsLast bit - Flags |= (Chan == 3 ? MO_FLAG_LAST : 0); + Flags |= (Chan != 3 ? MO_FLAG_NOT_LAST : 0); // Add the new instruction unsigned Opcode; diff --git a/src/gallium/drivers/radeon/R600ISelLowering.cpp b/src/gallium/drivers/radeon/R600ISelLowering.cpp index d134979dd04..bf970a5e05d 100644 --- a/src/gallium/drivers/radeon/R600ISelLowering.cpp +++ b/src/gallium/drivers/radeon/R600ISelLowering.cpp @@ -13,6 +13,7 @@ //===----------------------------------------------------------------------===// #include "R600ISelLowering.h" +#include "R600Defines.h" #include "R600InstrInfo.h" #include "R600MachineFunctionInfo.h" #include "llvm/CodeGen/MachineInstrBuilder.h" diff --git a/src/gallium/drivers/radeon/R600InstrInfo.cpp b/src/gallium/drivers/radeon/R600InstrInfo.cpp index bcc81e0e383..2ef262ddb09 100644 --- a/src/gallium/drivers/radeon/R600InstrInfo.cpp +++ b/src/gallium/drivers/radeon/R600InstrInfo.cpp @@ -14,6 +14,7 @@ #include "R600InstrInfo.h" #include "AMDGPUTargetMachine.h" #include "AMDGPUSubtarget.h" +#include "R600Defines.h" #include "R600RegisterInfo.h" #include "llvm/CodeGen/MachineInstrBuilder.h" #include "AMDILUtilityFunctions.h" @@ -119,28 +120,6 @@ bool R600InstrInfo::isPlaceHolderOpcode(unsigned opcode) const } } -bool R600InstrInfo::isTexOp(unsigned opcode) const -{ - switch(opcode) { - default: return false; - case AMDGPU::TEX_LD: - case AMDGPU::TEX_GET_TEXTURE_RESINFO: - case AMDGPU::TEX_SAMPLE: - case AMDGPU::TEX_SAMPLE_C: - case AMDGPU::TEX_SAMPLE_L: - case AMDGPU::TEX_SAMPLE_C_L: - case AMDGPU::TEX_SAMPLE_LB: - case AMDGPU::TEX_SAMPLE_C_LB: - case AMDGPU::TEX_SAMPLE_G: - case AMDGPU::TEX_SAMPLE_C_G: - case AMDGPU::TEX_GET_GRADIENTS_H: - case AMDGPU::TEX_GET_GRADIENTS_V: - case AMDGPU::TEX_SET_GRADIENTS_H: - case AMDGPU::TEX_SET_GRADIENTS_V: - return true; - } -} - bool R600InstrInfo::isReductionOp(unsigned opcode) const { switch(opcode) { @@ -163,27 +142,6 @@ bool R600InstrInfo::isCubeOp(unsigned opcode) const } } - -bool R600InstrInfo::isFCOp(unsigned opcode) const -{ - switch(opcode) { - default: return false; - case AMDGPU::BREAK_LOGICALZ_f32: - case AMDGPU::BREAK_LOGICALNZ_i32: - case AMDGPU::BREAK_LOGICALZ_i32: - case AMDGPU::BREAK_LOGICALNZ_f32: - case AMDGPU::CONTINUE_LOGICALNZ_f32: - case AMDGPU::IF_LOGICALNZ_i32: - case AMDGPU::IF_LOGICALZ_f32: - case AMDGPU::ELSE: - case AMDGPU::ENDIF: - case AMDGPU::ENDLOOP: - case AMDGPU::IF_LOGICALNZ_f32: - case AMDGPU::WHILELOOP: - return true; - } -} - DFAPacketizer *R600InstrInfo::CreateTargetScheduleState(const TargetMachine *TM, const ScheduleDAG *DAG) const { @@ -523,16 +481,14 @@ int R600InstrInfo::getInstrLatency(const InstrItineraryData *ItinData, // Instruction flag getters/setters //===----------------------------------------------------------------------===// -#define GET_FLAG_OPERAND_IDX(MI) (((MI).getDesc().TSFlags >> 7) & 0x3) - bool R600InstrInfo::HasFlagOperand(const MachineInstr &MI) const { - return GET_FLAG_OPERAND_IDX(MI) != 0; + return GET_FLAG_OPERAND_IDX(get(MI.getOpcode()).TSFlags) != 0; } MachineOperand &R600InstrInfo::GetFlagOp(MachineInstr *MI) const { - unsigned FlagIndex = GET_FLAG_OPERAND_IDX(*MI); + unsigned FlagIndex = GET_FLAG_OPERAND_IDX(get(MI->getOpcode()).TSFlags); assert(FlagIndex != 0 && "Instruction flags not supported for this instruction"); MachineOperand &FlagOp = MI->getOperand(FlagIndex); @@ -547,18 +503,6 @@ void R600InstrInfo::AddFlag(MachineInstr *MI, unsigned Operand, FlagOp.setImm(FlagOp.getImm() | (Flag << (NUM_MO_FLAGS * Operand))); } -bool R600InstrInfo::IsFlagSet(const MachineInstr &MI, unsigned Operand, - unsigned Flag) const -{ - unsigned FlagIndex = GET_FLAG_OPERAND_IDX(MI); - if (FlagIndex == 0) { - return false; - } - assert(MI.getOperand(FlagIndex).isImm()); - return !!((MI.getOperand(FlagIndex).getImm() >> - (NUM_MO_FLAGS * Operand)) & Flag); -} - void R600InstrInfo::ClearFlag(MachineInstr *MI, unsigned Operand, unsigned Flag) const { diff --git a/src/gallium/drivers/radeon/R600InstrInfo.h b/src/gallium/drivers/radeon/R600InstrInfo.h index 9bc534f2d0b..08228b6f42a 100644 --- a/src/gallium/drivers/radeon/R600InstrInfo.h +++ b/src/gallium/drivers/radeon/R600InstrInfo.h @@ -47,10 +47,8 @@ namespace llvm { bool isTrig(const MachineInstr &MI) const; bool isPlaceHolderOpcode(unsigned opcode) const; - bool isTexOp(unsigned opcode) const; bool isReductionOp(unsigned opcode) const; bool isCubeOp(unsigned opcode) const; - bool isFCOp(unsigned opcode) const; /// isVector - Vector instructions are instructions that must fill all /// instruction slots within an instruction group. |