forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			601 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			601 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===-- AMDGPUAsmPrinter.cpp - AMDGPU Assebly printer  --------------------===//
 | |
| //
 | |
| //                     The LLVM Compiler Infrastructure
 | |
| //
 | |
| // This file is distributed under the University of Illinois Open Source
 | |
| // License. See LICENSE.TXT for details.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| //
 | |
| /// \file
 | |
| ///
 | |
| /// The AMDGPUAsmPrinter is used to print both assembly string and also binary
 | |
| /// code.  When passed an MCAsmStreamer it prints assembly and when passed
 | |
| /// an MCObjectStreamer it outputs binary code.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| //
 | |
| 
 | |
| #include "AMDGPUAsmPrinter.h"
 | |
| #include "InstPrinter/AMDGPUInstPrinter.h"
 | |
| #include "AMDGPU.h"
 | |
| #include "AMDKernelCodeT.h"
 | |
| #include "AMDGPUSubtarget.h"
 | |
| #include "R600Defines.h"
 | |
| #include "R600MachineFunctionInfo.h"
 | |
| #include "R600RegisterInfo.h"
 | |
| #include "SIDefines.h"
 | |
| #include "SIMachineFunctionInfo.h"
 | |
| #include "SIRegisterInfo.h"
 | |
| #include "llvm/CodeGen/MachineFrameInfo.h"
 | |
| #include "llvm/MC/MCContext.h"
 | |
| #include "llvm/MC/MCSectionELF.h"
 | |
| #include "llvm/MC/MCStreamer.h"
 | |
| #include "llvm/Support/ELF.h"
 | |
| #include "llvm/Support/MathExtras.h"
 | |
| #include "llvm/Support/TargetRegistry.h"
 | |
| #include "llvm/Target/TargetLoweringObjectFile.h"
 | |
| 
 | |
| using namespace llvm;
 | |
| 
 | |
| // TODO: This should get the default rounding mode from the kernel. We just set
 | |
| // the default here, but this could change if the OpenCL rounding mode pragmas
 | |
| // are used.
 | |
| //
 | |
| // The denormal mode here should match what is reported by the OpenCL runtime
 | |
| // for the CL_FP_DENORM bit from CL_DEVICE_{HALF|SINGLE|DOUBLE}_FP_CONFIG, but
 | |
| // can also be override to flush with the -cl-denorms-are-zero compiler flag.
 | |
| //
 | |
| // AMD OpenCL only sets flush none and reports CL_FP_DENORM for double
 | |
| // precision, and leaves single precision to flush all and does not report
 | |
| // CL_FP_DENORM for CL_DEVICE_SINGLE_FP_CONFIG. Mesa's OpenCL currently reports
 | |
| // CL_FP_DENORM for both.
 | |
| //
 | |
| // FIXME: It seems some instructions do not support single precision denormals
 | |
| // regardless of the mode (exp_*_f32, rcp_*_f32, rsq_*_f32, rsq_*f32, sqrt_f32,
 | |
| // and sin_f32, cos_f32 on most parts).
 | |
| 
 | |
| // We want to use these instructions, and using fp32 denormals also causes
 | |
| // instructions to run at the double precision rate for the device so it's
 | |
| // probably best to just report no single precision denormals.
 | |
| static uint32_t getFPMode(const MachineFunction &F) {
 | |
|   const AMDGPUSubtarget& ST = F.getSubtarget<AMDGPUSubtarget>();
 | |
|   // TODO: Is there any real use for the flush in only / flush out only modes?
 | |
| 
 | |
|   uint32_t FP32Denormals =
 | |
|     ST.hasFP32Denormals() ? FP_DENORM_FLUSH_NONE : FP_DENORM_FLUSH_IN_FLUSH_OUT;
 | |
| 
 | |
|   uint32_t FP64Denormals =
 | |
|     ST.hasFP64Denormals() ? FP_DENORM_FLUSH_NONE : FP_DENORM_FLUSH_IN_FLUSH_OUT;
 | |
| 
 | |
|   return FP_ROUND_MODE_SP(FP_ROUND_ROUND_TO_NEAREST) |
 | |
|          FP_ROUND_MODE_DP(FP_ROUND_ROUND_TO_NEAREST) |
 | |
|          FP_DENORM_MODE_SP(FP32Denormals) |
 | |
|          FP_DENORM_MODE_DP(FP64Denormals);
 | |
| }
 | |
| 
 | |
| static AsmPrinter *
 | |
| createAMDGPUAsmPrinterPass(TargetMachine &tm,
 | |
|                            std::unique_ptr<MCStreamer> &&Streamer) {
 | |
|   return new AMDGPUAsmPrinter(tm, std::move(Streamer));
 | |
| }
 | |
| 
 | |
| extern "C" void LLVMInitializeR600AsmPrinter() {
 | |
|   TargetRegistry::RegisterAsmPrinter(TheAMDGPUTarget, createAMDGPUAsmPrinterPass);
 | |
|   TargetRegistry::RegisterAsmPrinter(TheGCNTarget, createAMDGPUAsmPrinterPass);
 | |
| }
 | |
| 
 | |
| AMDGPUAsmPrinter::AMDGPUAsmPrinter(TargetMachine &TM,
 | |
|                                    std::unique_ptr<MCStreamer> Streamer)
 | |
|     : AsmPrinter(TM, std::move(Streamer)) {}
 | |
| 
 | |
| void AMDGPUAsmPrinter::EmitEndOfAsmFile(Module &M) {
 | |
| 
 | |
|   // This label is used to mark the end of the .text section.
 | |
|   const TargetLoweringObjectFile &TLOF = getObjFileLowering();
 | |
|   OutStreamer->SwitchSection(TLOF.getTextSection());
 | |
|   MCSymbol *EndOfTextLabel =
 | |
|       OutContext.getOrCreateSymbol(StringRef(END_OF_TEXT_LABEL_NAME));
 | |
|   OutStreamer->EmitLabel(EndOfTextLabel);
 | |
| }
 | |
| 
 | |
| bool AMDGPUAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
 | |
| 
 | |
|   // The starting address of all shader programs must be 256 bytes aligned.
 | |
|   MF.setAlignment(8);
 | |
| 
 | |
|   SetupMachineFunction(MF);
 | |
| 
 | |
|   MCContext &Context = getObjFileLowering().getContext();
 | |
|   MCSectionELF *ConfigSection =
 | |
|       Context.getELFSection(".AMDGPU.config", ELF::SHT_PROGBITS, 0);
 | |
|   OutStreamer->SwitchSection(ConfigSection);
 | |
| 
 | |
|   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
 | |
|   SIProgramInfo KernelInfo;
 | |
|   if (STM.isAmdHsaOS()) {
 | |
|     getSIProgramInfo(KernelInfo, MF);
 | |
|     EmitAmdKernelCodeT(MF, KernelInfo);
 | |
|     OutStreamer->EmitCodeAlignment(2 << (MF.getAlignment() - 1));
 | |
|   } else if (STM.getGeneration() >= AMDGPUSubtarget::SOUTHERN_ISLANDS) {
 | |
|     getSIProgramInfo(KernelInfo, MF);
 | |
|     EmitProgramInfoSI(MF, KernelInfo);
 | |
|   } else {
 | |
|     EmitProgramInfoR600(MF);
 | |
|   }
 | |
| 
 | |
|   DisasmLines.clear();
 | |
|   HexLines.clear();
 | |
|   DisasmLineMaxLen = 0;
 | |
| 
 | |
|   EmitFunctionBody();
 | |
| 
 | |
|   if (isVerbose()) {
 | |
|     MCSectionELF *CommentSection =
 | |
|         Context.getELFSection(".AMDGPU.csdata", ELF::SHT_PROGBITS, 0);
 | |
|     OutStreamer->SwitchSection(CommentSection);
 | |
| 
 | |
|     if (STM.getGeneration() >= AMDGPUSubtarget::SOUTHERN_ISLANDS) {
 | |
|       OutStreamer->emitRawComment(" Kernel info:", false);
 | |
|       OutStreamer->emitRawComment(" codeLenInByte = " + Twine(KernelInfo.CodeLen),
 | |
|                                   false);
 | |
|       OutStreamer->emitRawComment(" NumSgprs: " + Twine(KernelInfo.NumSGPR),
 | |
|                                   false);
 | |
|       OutStreamer->emitRawComment(" NumVgprs: " + Twine(KernelInfo.NumVGPR),
 | |
|                                   false);
 | |
|       OutStreamer->emitRawComment(" FloatMode: " + Twine(KernelInfo.FloatMode),
 | |
|                                   false);
 | |
|       OutStreamer->emitRawComment(" IeeeMode: " + Twine(KernelInfo.IEEEMode),
 | |
|                                   false);
 | |
|       OutStreamer->emitRawComment(" ScratchSize: " + Twine(KernelInfo.ScratchSize),
 | |
|                                   false);
 | |
|     } else {
 | |
|       R600MachineFunctionInfo *MFI = MF.getInfo<R600MachineFunctionInfo>();
 | |
|       OutStreamer->emitRawComment(
 | |
|         Twine("SQ_PGM_RESOURCES:STACK_SIZE = " + Twine(MFI->StackSize)));
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (STM.dumpCode()) {
 | |
| 
 | |
|     OutStreamer->SwitchSection(
 | |
|         Context.getELFSection(".AMDGPU.disasm", ELF::SHT_NOTE, 0));
 | |
| 
 | |
|     for (size_t i = 0; i < DisasmLines.size(); ++i) {
 | |
|       std::string Comment(DisasmLineMaxLen - DisasmLines[i].size(), ' ');
 | |
|       Comment += " ; " + HexLines[i] + "\n";
 | |
| 
 | |
|       OutStreamer->EmitBytes(StringRef(DisasmLines[i]));
 | |
|       OutStreamer->EmitBytes(StringRef(Comment));
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| void AMDGPUAsmPrinter::EmitProgramInfoR600(const MachineFunction &MF) {
 | |
|   unsigned MaxGPR = 0;
 | |
|   bool killPixel = false;
 | |
|   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
 | |
|   const R600RegisterInfo *RI =
 | |
|       static_cast<const R600RegisterInfo *>(STM.getRegisterInfo());
 | |
|   const R600MachineFunctionInfo *MFI = MF.getInfo<R600MachineFunctionInfo>();
 | |
| 
 | |
|   for (const MachineBasicBlock &MBB : MF) {
 | |
|     for (const MachineInstr &MI : MBB) {
 | |
|       if (MI.getOpcode() == AMDGPU::KILLGT)
 | |
|         killPixel = true;
 | |
|       unsigned numOperands = MI.getNumOperands();
 | |
|       for (unsigned op_idx = 0; op_idx < numOperands; op_idx++) {
 | |
|         const MachineOperand &MO = MI.getOperand(op_idx);
 | |
|         if (!MO.isReg())
 | |
|           continue;
 | |
|         unsigned HWReg = RI->getEncodingValue(MO.getReg()) & 0xff;
 | |
| 
 | |
|         // Register with value > 127 aren't GPR
 | |
|         if (HWReg > 127)
 | |
|           continue;
 | |
|         MaxGPR = std::max(MaxGPR, HWReg);
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   unsigned RsrcReg;
 | |
|   if (STM.getGeneration() >= AMDGPUSubtarget::EVERGREEN) {
 | |
|     // Evergreen / Northern Islands
 | |
|     switch (MFI->getShaderType()) {
 | |
|     default: // Fall through
 | |
|     case ShaderType::COMPUTE:  RsrcReg = R_0288D4_SQ_PGM_RESOURCES_LS; break;
 | |
|     case ShaderType::GEOMETRY: RsrcReg = R_028878_SQ_PGM_RESOURCES_GS; break;
 | |
|     case ShaderType::PIXEL:    RsrcReg = R_028844_SQ_PGM_RESOURCES_PS; break;
 | |
|     case ShaderType::VERTEX:   RsrcReg = R_028860_SQ_PGM_RESOURCES_VS; break;
 | |
|     }
 | |
|   } else {
 | |
|     // R600 / R700
 | |
|     switch (MFI->getShaderType()) {
 | |
|     default: // Fall through
 | |
|     case ShaderType::GEOMETRY: // Fall through
 | |
|     case ShaderType::COMPUTE:  // Fall through
 | |
|     case ShaderType::VERTEX:   RsrcReg = R_028868_SQ_PGM_RESOURCES_VS; break;
 | |
|     case ShaderType::PIXEL:    RsrcReg = R_028850_SQ_PGM_RESOURCES_PS; break;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   OutStreamer->EmitIntValue(RsrcReg, 4);
 | |
|   OutStreamer->EmitIntValue(S_NUM_GPRS(MaxGPR + 1) |
 | |
|                            S_STACK_SIZE(MFI->StackSize), 4);
 | |
|   OutStreamer->EmitIntValue(R_02880C_DB_SHADER_CONTROL, 4);
 | |
|   OutStreamer->EmitIntValue(S_02880C_KILL_ENABLE(killPixel), 4);
 | |
| 
 | |
|   if (MFI->getShaderType() == ShaderType::COMPUTE) {
 | |
|     OutStreamer->EmitIntValue(R_0288E8_SQ_LDS_ALLOC, 4);
 | |
|     OutStreamer->EmitIntValue(RoundUpToAlignment(MFI->LDSSize, 4) >> 2, 4);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void AMDGPUAsmPrinter::getSIProgramInfo(SIProgramInfo &ProgInfo,
 | |
|                                         const MachineFunction &MF) const {
 | |
|   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
 | |
|   const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
 | |
|   uint64_t CodeSize = 0;
 | |
|   unsigned MaxSGPR = 0;
 | |
|   unsigned MaxVGPR = 0;
 | |
|   bool VCCUsed = false;
 | |
|   bool FlatUsed = false;
 | |
|   const SIRegisterInfo *RI =
 | |
|       static_cast<const SIRegisterInfo *>(STM.getRegisterInfo());
 | |
| 
 | |
|   for (const MachineBasicBlock &MBB : MF) {
 | |
|     for (const MachineInstr &MI : MBB) {
 | |
|       // TODO: CodeSize should account for multiple functions.
 | |
|       CodeSize += MI.getDesc().Size;
 | |
| 
 | |
|       unsigned numOperands = MI.getNumOperands();
 | |
|       for (unsigned op_idx = 0; op_idx < numOperands; op_idx++) {
 | |
|         const MachineOperand &MO = MI.getOperand(op_idx);
 | |
|         unsigned width = 0;
 | |
|         bool isSGPR = false;
 | |
| 
 | |
|         if (!MO.isReg()) {
 | |
|           continue;
 | |
|         }
 | |
|         unsigned reg = MO.getReg();
 | |
|         if (reg == AMDGPU::VCC || reg == AMDGPU::VCC_LO ||
 | |
| 	    reg == AMDGPU::VCC_HI) {
 | |
|           VCCUsed = true;
 | |
|           continue;
 | |
|         } else if (reg == AMDGPU::FLAT_SCR ||
 | |
|                    reg == AMDGPU::FLAT_SCR_LO ||
 | |
|                    reg == AMDGPU::FLAT_SCR_HI) {
 | |
|           FlatUsed = true;
 | |
|           continue;
 | |
|         }
 | |
| 
 | |
|         switch (reg) {
 | |
|         default: break;
 | |
|         case AMDGPU::SCC:
 | |
|         case AMDGPU::EXEC:
 | |
|         case AMDGPU::M0:
 | |
|           continue;
 | |
|         }
 | |
| 
 | |
|         if (AMDGPU::SReg_32RegClass.contains(reg)) {
 | |
|           isSGPR = true;
 | |
|           width = 1;
 | |
|         } else if (AMDGPU::VGPR_32RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 1;
 | |
|         } else if (AMDGPU::SReg_64RegClass.contains(reg)) {
 | |
|           isSGPR = true;
 | |
|           width = 2;
 | |
|         } else if (AMDGPU::VReg_64RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 2;
 | |
|         } else if (AMDGPU::VReg_96RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 3;
 | |
|         } else if (AMDGPU::SReg_128RegClass.contains(reg)) {
 | |
|           isSGPR = true;
 | |
|           width = 4;
 | |
|         } else if (AMDGPU::VReg_128RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 4;
 | |
|         } else if (AMDGPU::SReg_256RegClass.contains(reg)) {
 | |
|           isSGPR = true;
 | |
|           width = 8;
 | |
|         } else if (AMDGPU::VReg_256RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 8;
 | |
|         } else if (AMDGPU::SReg_512RegClass.contains(reg)) {
 | |
|           isSGPR = true;
 | |
|           width = 16;
 | |
|         } else if (AMDGPU::VReg_512RegClass.contains(reg)) {
 | |
|           isSGPR = false;
 | |
|           width = 16;
 | |
|         } else {
 | |
|           llvm_unreachable("Unknown register class");
 | |
|         }
 | |
|         unsigned hwReg = RI->getEncodingValue(reg) & 0xff;
 | |
|         unsigned maxUsed = hwReg + width - 1;
 | |
|         if (isSGPR) {
 | |
|           MaxSGPR = maxUsed > MaxSGPR ? maxUsed : MaxSGPR;
 | |
|         } else {
 | |
|           MaxVGPR = maxUsed > MaxVGPR ? maxUsed : MaxVGPR;
 | |
|         }
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (VCCUsed)
 | |
|     MaxSGPR += 2;
 | |
| 
 | |
|   if (FlatUsed)
 | |
|     MaxSGPR += 2;
 | |
| 
 | |
|   // We found the maximum register index. They start at 0, so add one to get the
 | |
|   // number of registers.
 | |
|   ProgInfo.NumVGPR = MaxVGPR + 1;
 | |
|   ProgInfo.NumSGPR = MaxSGPR + 1;
 | |
| 
 | |
|   if (STM.hasSGPRInitBug()) {
 | |
|     if (ProgInfo.NumSGPR > AMDGPUSubtarget::FIXED_SGPR_COUNT_FOR_INIT_BUG)
 | |
|       llvm_unreachable("Too many SGPRs used with the SGPR init bug");
 | |
| 
 | |
|     ProgInfo.NumSGPR = AMDGPUSubtarget::FIXED_SGPR_COUNT_FOR_INIT_BUG;
 | |
|   }
 | |
| 
 | |
|   ProgInfo.VGPRBlocks = (ProgInfo.NumVGPR - 1) / 4;
 | |
|   ProgInfo.SGPRBlocks = (ProgInfo.NumSGPR - 1) / 8;
 | |
|   // Set the value to initialize FP_ROUND and FP_DENORM parts of the mode
 | |
|   // register.
 | |
|   ProgInfo.FloatMode = getFPMode(MF);
 | |
| 
 | |
|   // XXX: Not quite sure what this does, but sc seems to unset this.
 | |
|   ProgInfo.IEEEMode = 0;
 | |
| 
 | |
|   // Do not clamp NAN to 0.
 | |
|   ProgInfo.DX10Clamp = 0;
 | |
| 
 | |
|   const MachineFrameInfo *FrameInfo = MF.getFrameInfo();
 | |
|   ProgInfo.ScratchSize = FrameInfo->estimateStackSize(MF);
 | |
| 
 | |
|   ProgInfo.FlatUsed = FlatUsed;
 | |
|   ProgInfo.VCCUsed = VCCUsed;
 | |
|   ProgInfo.CodeLen = CodeSize;
 | |
| 
 | |
|   unsigned LDSAlignShift;
 | |
|   if (STM.getGeneration() < AMDGPUSubtarget::SEA_ISLANDS) {
 | |
|     // LDS is allocated in 64 dword blocks.
 | |
|     LDSAlignShift = 8;
 | |
|   } else {
 | |
|     // LDS is allocated in 128 dword blocks.
 | |
|     LDSAlignShift = 9;
 | |
|   }
 | |
| 
 | |
|   unsigned LDSSpillSize = MFI->LDSWaveSpillSize *
 | |
|                           MFI->getMaximumWorkGroupSize(MF);
 | |
| 
 | |
|   ProgInfo.LDSSize = MFI->LDSSize + LDSSpillSize;
 | |
|   ProgInfo.LDSBlocks =
 | |
|      RoundUpToAlignment(ProgInfo.LDSSize, 1 << LDSAlignShift) >> LDSAlignShift;
 | |
| 
 | |
|   // Scratch is allocated in 256 dword blocks.
 | |
|   unsigned ScratchAlignShift = 10;
 | |
|   // We need to program the hardware with the amount of scratch memory that
 | |
|   // is used by the entire wave.  ProgInfo.ScratchSize is the amount of
 | |
|   // scratch memory used per thread.
 | |
|   ProgInfo.ScratchBlocks =
 | |
|     RoundUpToAlignment(ProgInfo.ScratchSize * STM.getWavefrontSize(),
 | |
|                        1 << ScratchAlignShift) >> ScratchAlignShift;
 | |
| 
 | |
|   ProgInfo.ComputePGMRSrc1 =
 | |
|       S_00B848_VGPRS(ProgInfo.VGPRBlocks) |
 | |
|       S_00B848_SGPRS(ProgInfo.SGPRBlocks) |
 | |
|       S_00B848_PRIORITY(ProgInfo.Priority) |
 | |
|       S_00B848_FLOAT_MODE(ProgInfo.FloatMode) |
 | |
|       S_00B848_PRIV(ProgInfo.Priv) |
 | |
|       S_00B848_DX10_CLAMP(ProgInfo.DX10Clamp) |
 | |
|       S_00B848_IEEE_MODE(ProgInfo.DebugMode) |
 | |
|       S_00B848_IEEE_MODE(ProgInfo.IEEEMode);
 | |
| 
 | |
|   ProgInfo.ComputePGMRSrc2 =
 | |
|       S_00B84C_SCRATCH_EN(ProgInfo.ScratchBlocks > 0) |
 | |
|       S_00B84C_USER_SGPR(MFI->NumUserSGPRs) |
 | |
|       S_00B84C_TGID_X_EN(1) |
 | |
|       S_00B84C_TGID_Y_EN(1) |
 | |
|       S_00B84C_TGID_Z_EN(1) |
 | |
|       S_00B84C_TG_SIZE_EN(1) |
 | |
|       S_00B84C_TIDIG_COMP_CNT(2) |
 | |
|       S_00B84C_LDS_SIZE(ProgInfo.LDSBlocks);
 | |
| }
 | |
| 
 | |
| static unsigned getRsrcReg(unsigned ShaderType) {
 | |
|   switch (ShaderType) {
 | |
|   default: // Fall through
 | |
|   case ShaderType::COMPUTE:  return R_00B848_COMPUTE_PGM_RSRC1;
 | |
|   case ShaderType::GEOMETRY: return R_00B228_SPI_SHADER_PGM_RSRC1_GS;
 | |
|   case ShaderType::PIXEL:    return R_00B028_SPI_SHADER_PGM_RSRC1_PS;
 | |
|   case ShaderType::VERTEX:   return R_00B128_SPI_SHADER_PGM_RSRC1_VS;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void AMDGPUAsmPrinter::EmitProgramInfoSI(const MachineFunction &MF,
 | |
|                                          const SIProgramInfo &KernelInfo) {
 | |
|   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
 | |
|   const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
 | |
|   unsigned RsrcReg = getRsrcReg(MFI->getShaderType());
 | |
| 
 | |
|   if (MFI->getShaderType() == ShaderType::COMPUTE) {
 | |
|     OutStreamer->EmitIntValue(R_00B848_COMPUTE_PGM_RSRC1, 4);
 | |
| 
 | |
|     OutStreamer->EmitIntValue(KernelInfo.ComputePGMRSrc1, 4);
 | |
| 
 | |
|     OutStreamer->EmitIntValue(R_00B84C_COMPUTE_PGM_RSRC2, 4);
 | |
|     OutStreamer->EmitIntValue(KernelInfo.ComputePGMRSrc2, 4);
 | |
| 
 | |
|     OutStreamer->EmitIntValue(R_00B860_COMPUTE_TMPRING_SIZE, 4);
 | |
|     OutStreamer->EmitIntValue(S_00B860_WAVESIZE(KernelInfo.ScratchBlocks), 4);
 | |
| 
 | |
|     // TODO: Should probably note flat usage somewhere. SC emits a "FlatPtr32 =
 | |
|     // 0" comment but I don't see a corresponding field in the register spec.
 | |
|   } else {
 | |
|     OutStreamer->EmitIntValue(RsrcReg, 4);
 | |
|     OutStreamer->EmitIntValue(S_00B028_VGPRS(KernelInfo.VGPRBlocks) |
 | |
|                               S_00B028_SGPRS(KernelInfo.SGPRBlocks), 4);
 | |
|     if (STM.isVGPRSpillingEnabled(MFI)) {
 | |
|       OutStreamer->EmitIntValue(R_0286E8_SPI_TMPRING_SIZE, 4);
 | |
|       OutStreamer->EmitIntValue(S_0286E8_WAVESIZE(KernelInfo.ScratchBlocks), 4);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (MFI->getShaderType() == ShaderType::PIXEL) {
 | |
|     OutStreamer->EmitIntValue(R_00B02C_SPI_SHADER_PGM_RSRC2_PS, 4);
 | |
|     OutStreamer->EmitIntValue(S_00B02C_EXTRA_LDS_SIZE(KernelInfo.LDSBlocks), 4);
 | |
|     OutStreamer->EmitIntValue(R_0286CC_SPI_PS_INPUT_ENA, 4);
 | |
|     OutStreamer->EmitIntValue(MFI->PSInputAddr, 4);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void AMDGPUAsmPrinter::EmitAmdKernelCodeT(const MachineFunction &MF,
 | |
|                                         const SIProgramInfo &KernelInfo) const {
 | |
|   const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
 | |
|   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
 | |
|   amd_kernel_code_t header;
 | |
| 
 | |
|   memset(&header, 0, sizeof(header));
 | |
| 
 | |
|   header.amd_code_version_major = AMD_CODE_VERSION_MAJOR;
 | |
|   header.amd_code_version_minor = AMD_CODE_VERSION_MINOR;
 | |
| 
 | |
|   header.struct_byte_size = sizeof(amd_kernel_code_t);
 | |
| 
 | |
|   header.target_chip = STM.getAmdKernelCodeChipID();
 | |
| 
 | |
|   header.kernel_code_entry_byte_offset = (1ULL << MF.getAlignment());
 | |
| 
 | |
|   header.compute_pgm_resource_registers =
 | |
|       KernelInfo.ComputePGMRSrc1 |
 | |
|       (KernelInfo.ComputePGMRSrc2 << 32);
 | |
| 
 | |
|   // Code Properties:
 | |
|   header.code_properties = AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR |
 | |
|                            AMD_CODE_PROPERTY_IS_PTR64;
 | |
| 
 | |
|   if (KernelInfo.FlatUsed)
 | |
|     header.code_properties |= AMD_CODE_PROPERTY_ENABLE_SGPR_FLAT_SCRATCH_INIT;
 | |
| 
 | |
|   if (KernelInfo.ScratchBlocks)
 | |
|     header.code_properties |= AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE;
 | |
| 
 | |
|   header.workitem_private_segment_byte_size = KernelInfo.ScratchSize;
 | |
|   header.workgroup_group_segment_byte_size = KernelInfo.LDSSize;
 | |
| 
 | |
|   // MFI->ABIArgOffset is the number of bytes for the kernel arguments
 | |
|   // plus 36.  36 is the number of bytes reserved at the begining of the
 | |
|   // input buffer to store work-group size information.
 | |
|   // FIXME: We should be adding the size of the implicit arguments
 | |
|   // to this value.
 | |
|   header.kernarg_segment_byte_size = MFI->ABIArgOffset;
 | |
| 
 | |
|   header.wavefront_sgpr_count = KernelInfo.NumSGPR;
 | |
|   header.workitem_vgpr_count = KernelInfo.NumVGPR;
 | |
| 
 | |
|   // FIXME: What values do I put for these alignments
 | |
|   header.kernarg_segment_alignment = 0;
 | |
|   header.group_segment_alignment = 0;
 | |
|   header.private_segment_alignment = 0;
 | |
| 
 | |
|   header.code_type = 1; // HSA_EXT_CODE_KERNEL
 | |
| 
 | |
|   header.wavefront_size = STM.getWavefrontSize();
 | |
| 
 | |
|   MCSectionELF *VersionSection =
 | |
|       OutContext.getELFSection(".hsa.version", ELF::SHT_PROGBITS, 0);
 | |
|   OutStreamer->SwitchSection(VersionSection);
 | |
|   OutStreamer->EmitBytes(Twine("HSA Code Unit:" +
 | |
|                          Twine(header.hsail_version_major) + "." +
 | |
|                          Twine(header.hsail_version_minor) + ":" +
 | |
|                          "AMD:" +
 | |
|                          Twine(header.amd_code_version_major) + "." +
 | |
|                          Twine(header.amd_code_version_minor) +  ":" +
 | |
|                          "GFX8.1:0").str());
 | |
| 
 | |
|   OutStreamer->SwitchSection(getObjFileLowering().getTextSection());
 | |
| 
 | |
|   if (isVerbose()) {
 | |
|     OutStreamer->emitRawComment("amd_code_version_major = " +
 | |
|                                 Twine(header.amd_code_version_major), false);
 | |
|     OutStreamer->emitRawComment("amd_code_version_minor = " +
 | |
|                                 Twine(header.amd_code_version_minor), false);
 | |
|     OutStreamer->emitRawComment("struct_byte_size = " +
 | |
|                                 Twine(header.struct_byte_size), false);
 | |
|     OutStreamer->emitRawComment("target_chip = " +
 | |
|                                 Twine(header.target_chip), false);
 | |
|     OutStreamer->emitRawComment(" compute_pgm_rsrc1: " +
 | |
|                                 Twine::utohexstr(KernelInfo.ComputePGMRSrc1),
 | |
|                                 false);
 | |
|     OutStreamer->emitRawComment(" compute_pgm_rsrc2: " +
 | |
|                                 Twine::utohexstr(KernelInfo.ComputePGMRSrc2),
 | |
|                                 false);
 | |
|     OutStreamer->emitRawComment("enable_sgpr_private_segment_buffer = " +
 | |
|       Twine((bool)(header.code_properties &
 | |
|                    AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE)), false);
 | |
|     OutStreamer->emitRawComment("enable_sgpr_kernarg_segment_ptr = " +
 | |
|       Twine((bool)(header.code_properties &
 | |
|                    AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR)), false);
 | |
|     OutStreamer->emitRawComment("private_element_size = 2 ", false);
 | |
|     OutStreamer->emitRawComment("is_ptr64 = " +
 | |
|         Twine((bool)(header.code_properties & AMD_CODE_PROPERTY_IS_PTR64)), false);
 | |
|     OutStreamer->emitRawComment("workitem_private_segment_byte_size = " +
 | |
|                                 Twine(header.workitem_private_segment_byte_size),
 | |
|                                 false);
 | |
|     OutStreamer->emitRawComment("workgroup_group_segment_byte_size = " +
 | |
|                                 Twine(header.workgroup_group_segment_byte_size),
 | |
|                                 false);
 | |
|     OutStreamer->emitRawComment("gds_segment_byte_size = " +
 | |
|                                 Twine(header.gds_segment_byte_size), false);
 | |
|     OutStreamer->emitRawComment("kernarg_segment_byte_size = " +
 | |
|                                 Twine(header.kernarg_segment_byte_size), false);
 | |
|     OutStreamer->emitRawComment("wavefront_sgpr_count = " +
 | |
|                                 Twine(header.wavefront_sgpr_count), false);
 | |
|     OutStreamer->emitRawComment("workitem_vgpr_count = " +
 | |
|                                 Twine(header.workitem_vgpr_count), false);
 | |
|     OutStreamer->emitRawComment("code_type = " + Twine(header.code_type), false);
 | |
|     OutStreamer->emitRawComment("wavefront_size = " +
 | |
|                                 Twine((int)header.wavefront_size), false);
 | |
|     OutStreamer->emitRawComment("optimization_level = " +
 | |
|                                 Twine(header.optimization_level), false);
 | |
|     OutStreamer->emitRawComment("hsail_profile = " +
 | |
|                                 Twine(header.hsail_profile), false);
 | |
|     OutStreamer->emitRawComment("hsail_machine_model = " +
 | |
|                                 Twine(header.hsail_machine_model), false);
 | |
|     OutStreamer->emitRawComment("hsail_version_major = " +
 | |
|                                 Twine(header.hsail_version_major), false);
 | |
|     OutStreamer->emitRawComment("hsail_version_minor = " +
 | |
|                                 Twine(header.hsail_version_minor), false);
 | |
|   }
 | |
| 
 | |
|   OutStreamer->EmitBytes(StringRef((char*)&header, sizeof(header)));
 | |
| }
 | |
| 
 | |
| bool AMDGPUAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 | |
|                                        unsigned AsmVariant,
 | |
|                                        const char *ExtraCode, raw_ostream &O) {
 | |
|   if (ExtraCode && ExtraCode[0]) {
 | |
|     if (ExtraCode[1] != 0)
 | |
|       return true; // Unknown modifier.
 | |
| 
 | |
|     switch (ExtraCode[0]) {
 | |
|     default:
 | |
|       // See if this is a generic print operand
 | |
|       return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O);
 | |
|     case 'r':
 | |
|       break;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   AMDGPUInstPrinter::printRegOperand(MI->getOperand(OpNo).getReg(), O,
 | |
|                    *TM.getSubtargetImpl(*MF->getFunction())->getRegisterInfo());
 | |
|   return false;
 | |
| }
 |