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clang-p2996/llvm/lib/Target/AMDGPU/InstPrinter/AMDGPUInstPrinter.cpp
Tom Stellard a096b12628 AMDGPU: Add R600InstPrinter class 
Summary:
This is step towards separating the GCN and R600 tablegen'd code.

This is a little awkward for now, because the R600 functions won't have the
MCSubtargetInfo parameter, so we need to have AMDMGPUInstPrinter
delegate to R600InstPrinter, but once the tablegen'd code is split,
we will be able to drop the delegation and use R600InstPrinter directly.

Reviewers: arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D36444

llvm-svn: 311128
2017-08-17 22:20:04 +00:00

1471 lines
45 KiB
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//===-- AMDGPUInstPrinter.cpp - AMDGPU MC Inst -> ASM ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
// \file
//===----------------------------------------------------------------------===//
#include "AMDGPUInstPrinter.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "SIDefines.h"
#include "Utils/AMDGPUAsmUtils.h"
#include "Utils/AMDGPUBaseInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
using namespace llvm;
using namespace llvm::AMDGPU;
void AMDGPUInstPrinter::printInst(const MCInst *MI, raw_ostream &OS,
StringRef Annot, const MCSubtargetInfo &STI) {
OS.flush();
printInstruction(MI, STI, OS);
printAnnotation(OS, Annot);
}
void AMDGPUInstPrinter::printU4ImmOperand(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << formatHex(MI->getOperand(OpNo).getImm() & 0xf);
}
void AMDGPUInstPrinter::printU8ImmOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
O << formatHex(MI->getOperand(OpNo).getImm() & 0xff);
}
void AMDGPUInstPrinter::printU16ImmOperand(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
// It's possible to end up with a 32-bit literal used with a 16-bit operand
// with ignored high bits. Print as 32-bit anyway in that case.
int64_t Imm = MI->getOperand(OpNo).getImm();
if (isInt<16>(Imm) || isUInt<16>(Imm))
O << formatHex(static_cast<uint64_t>(Imm & 0xffff));
else
printU32ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printU4ImmDecOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
O << formatDec(MI->getOperand(OpNo).getImm() & 0xf);
}
void AMDGPUInstPrinter::printU8ImmDecOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
O << formatDec(MI->getOperand(OpNo).getImm() & 0xff);
}
void AMDGPUInstPrinter::printU16ImmDecOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
O << formatDec(MI->getOperand(OpNo).getImm() & 0xffff);
}
void AMDGPUInstPrinter::printS16ImmDecOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
O << formatDec(static_cast<int16_t>(MI->getOperand(OpNo).getImm()));
}
void AMDGPUInstPrinter::printU32ImmOperand(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << formatHex(MI->getOperand(OpNo).getImm() & 0xffffffff);
}
void AMDGPUInstPrinter::printNamedBit(const MCInst *MI, unsigned OpNo,
raw_ostream &O, StringRef BitName) {
if (MI->getOperand(OpNo).getImm()) {
O << ' ' << BitName;
}
}
void AMDGPUInstPrinter::printOffen(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
printNamedBit(MI, OpNo, O, "offen");
}
void AMDGPUInstPrinter::printIdxen(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
printNamedBit(MI, OpNo, O, "idxen");
}
void AMDGPUInstPrinter::printAddr64(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
printNamedBit(MI, OpNo, O, "addr64");
}
void AMDGPUInstPrinter::printMBUFOffset(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " offset:";
printU16ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printOffset(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
uint16_t Imm = MI->getOperand(OpNo).getImm();
if (Imm != 0) {
O << ((OpNo == 0)? "offset:" : " offset:");
printU16ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printOffsetS13(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
uint16_t Imm = MI->getOperand(OpNo).getImm();
if (Imm != 0) {
O << ((OpNo == 0)? "offset:" : " offset:");
printS16ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printOffset0(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " offset0:";
printU8ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printOffset1(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " offset1:";
printU8ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printSMRDOffset8(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printU32ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printSMRDOffset20(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printU32ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printSMRDLiteralOffset(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printU32ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printGDS(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "gds");
}
void AMDGPUInstPrinter::printGLC(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "glc");
}
void AMDGPUInstPrinter::printSLC(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "slc");
}
void AMDGPUInstPrinter::printTFE(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "tfe");
}
void AMDGPUInstPrinter::printDMask(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " dmask:";
printU16ImmOperand(MI, OpNo, STI, O);
}
}
void AMDGPUInstPrinter::printUNorm(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "unorm");
}
void AMDGPUInstPrinter::printDA(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "da");
}
void AMDGPUInstPrinter::printR128(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "r128");
}
void AMDGPUInstPrinter::printLWE(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
printNamedBit(MI, OpNo, O, "lwe");
}
void AMDGPUInstPrinter::printExpCompr(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm())
O << " compr";
}
void AMDGPUInstPrinter::printExpVM(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm())
O << " vm";
}
void AMDGPUInstPrinter::printDFMT(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " dfmt:";
printU8ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printNFMT(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm()) {
O << " nfmt:";
printU8ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printRegOperand(unsigned RegNo, raw_ostream &O,
const MCRegisterInfo &MRI) {
switch (RegNo) {
case AMDGPU::VCC:
O << "vcc";
return;
case AMDGPU::SCC:
O << "scc";
return;
case AMDGPU::EXEC:
O << "exec";
return;
case AMDGPU::M0:
O << "m0";
return;
case AMDGPU::FLAT_SCR:
O << "flat_scratch";
return;
case AMDGPU::VCC_LO:
O << "vcc_lo";
return;
case AMDGPU::VCC_HI:
O << "vcc_hi";
return;
case AMDGPU::TBA_LO:
O << "tba_lo";
return;
case AMDGPU::TBA_HI:
O << "tba_hi";
return;
case AMDGPU::TMA_LO:
O << "tma_lo";
return;
case AMDGPU::TMA_HI:
O << "tma_hi";
return;
case AMDGPU::EXEC_LO:
O << "exec_lo";
return;
case AMDGPU::EXEC_HI:
O << "exec_hi";
return;
case AMDGPU::FLAT_SCR_LO:
O << "flat_scratch_lo";
return;
case AMDGPU::FLAT_SCR_HI:
O << "flat_scratch_hi";
return;
case AMDGPU::FP_REG:
case AMDGPU::SP_REG:
case AMDGPU::SCRATCH_WAVE_OFFSET_REG:
case AMDGPU::PRIVATE_RSRC_REG:
llvm_unreachable("pseudo-register should not ever be emitted");
default:
break;
}
// The low 8 bits of the encoding value is the register index, for both VGPRs
// and SGPRs.
unsigned RegIdx = MRI.getEncodingValue(RegNo) & ((1 << 8) - 1);
unsigned NumRegs;
if (MRI.getRegClass(AMDGPU::VGPR_32RegClassID).contains(RegNo)) {
O << 'v';
NumRegs = 1;
} else if (MRI.getRegClass(AMDGPU::SGPR_32RegClassID).contains(RegNo)) {
O << 's';
NumRegs = 1;
} else if (MRI.getRegClass(AMDGPU::VReg_64RegClassID).contains(RegNo)) {
O <<'v';
NumRegs = 2;
} else if (MRI.getRegClass(AMDGPU::SGPR_64RegClassID).contains(RegNo)) {
O << 's';
NumRegs = 2;
} else if (MRI.getRegClass(AMDGPU::VReg_128RegClassID).contains(RegNo)) {
O << 'v';
NumRegs = 4;
} else if (MRI.getRegClass(AMDGPU::SGPR_128RegClassID).contains(RegNo)) {
O << 's';
NumRegs = 4;
} else if (MRI.getRegClass(AMDGPU::VReg_96RegClassID).contains(RegNo)) {
O << 'v';
NumRegs = 3;
} else if (MRI.getRegClass(AMDGPU::VReg_256RegClassID).contains(RegNo)) {
O << 'v';
NumRegs = 8;
} else if (MRI.getRegClass(AMDGPU::SReg_256RegClassID).contains(RegNo)) {
O << 's';
NumRegs = 8;
} else if (MRI.getRegClass(AMDGPU::VReg_512RegClassID).contains(RegNo)) {
O << 'v';
NumRegs = 16;
} else if (MRI.getRegClass(AMDGPU::SReg_512RegClassID).contains(RegNo)) {
O << 's';
NumRegs = 16;
} else if (MRI.getRegClass(AMDGPU::TTMP_64RegClassID).contains(RegNo)) {
O << "ttmp";
NumRegs = 2;
// Trap temps start at offset 112. TODO: Get this from tablegen.
RegIdx -= 112;
} else if (MRI.getRegClass(AMDGPU::TTMP_128RegClassID).contains(RegNo)) {
O << "ttmp";
NumRegs = 4;
// Trap temps start at offset 112. TODO: Get this from tablegen.
RegIdx -= 112;
} else {
O << getRegisterName(RegNo);
return;
}
if (NumRegs == 1) {
O << RegIdx;
return;
}
O << '[' << RegIdx << ':' << (RegIdx + NumRegs - 1) << ']';
}
void AMDGPUInstPrinter::printVOPDst(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
if (MII.get(MI->getOpcode()).TSFlags & SIInstrFlags::VOP3)
O << "_e64 ";
else if (MII.get(MI->getOpcode()).TSFlags & SIInstrFlags::DPP)
O << "_dpp ";
else if (MII.get(MI->getOpcode()).TSFlags & SIInstrFlags::SDWA)
O << "_sdwa ";
else
O << "_e32 ";
printOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printImmediate16(uint32_t Imm,
const MCSubtargetInfo &STI,
raw_ostream &O) {
int16_t SImm = static_cast<int16_t>(Imm);
if (SImm >= -16 && SImm <= 64) {
O << SImm;
return;
}
if (Imm == 0x3C00)
O<< "1.0";
else if (Imm == 0xBC00)
O<< "-1.0";
else if (Imm == 0x3800)
O<< "0.5";
else if (Imm == 0xB800)
O<< "-0.5";
else if (Imm == 0x4000)
O<< "2.0";
else if (Imm == 0xC000)
O<< "-2.0";
else if (Imm == 0x4400)
O<< "4.0";
else if (Imm == 0xC400)
O<< "-4.0";
else if (Imm == 0x3118) {
assert(STI.getFeatureBits()[AMDGPU::FeatureInv2PiInlineImm]);
O << "0.15915494";
} else
O << formatHex(static_cast<uint64_t>(Imm));
}
void AMDGPUInstPrinter::printImmediateV216(uint32_t Imm,
const MCSubtargetInfo &STI,
raw_ostream &O) {
uint16_t Lo16 = static_cast<uint16_t>(Imm);
printImmediate16(Lo16, STI, O);
}
void AMDGPUInstPrinter::printImmediate32(uint32_t Imm,
const MCSubtargetInfo &STI,
raw_ostream &O) {
int32_t SImm = static_cast<int32_t>(Imm);
if (SImm >= -16 && SImm <= 64) {
O << SImm;
return;
}
if (Imm == FloatToBits(0.0f))
O << "0.0";
else if (Imm == FloatToBits(1.0f))
O << "1.0";
else if (Imm == FloatToBits(-1.0f))
O << "-1.0";
else if (Imm == FloatToBits(0.5f))
O << "0.5";
else if (Imm == FloatToBits(-0.5f))
O << "-0.5";
else if (Imm == FloatToBits(2.0f))
O << "2.0";
else if (Imm == FloatToBits(-2.0f))
O << "-2.0";
else if (Imm == FloatToBits(4.0f))
O << "4.0";
else if (Imm == FloatToBits(-4.0f))
O << "-4.0";
else if (Imm == 0x3e22f983 &&
STI.getFeatureBits()[AMDGPU::FeatureInv2PiInlineImm])
O << "0.15915494";
else
O << formatHex(static_cast<uint64_t>(Imm));
}
void AMDGPUInstPrinter::printImmediate64(uint64_t Imm,
const MCSubtargetInfo &STI,
raw_ostream &O) {
int64_t SImm = static_cast<int64_t>(Imm);
if (SImm >= -16 && SImm <= 64) {
O << SImm;
return;
}
if (Imm == DoubleToBits(0.0))
O << "0.0";
else if (Imm == DoubleToBits(1.0))
O << "1.0";
else if (Imm == DoubleToBits(-1.0))
O << "-1.0";
else if (Imm == DoubleToBits(0.5))
O << "0.5";
else if (Imm == DoubleToBits(-0.5))
O << "-0.5";
else if (Imm == DoubleToBits(2.0))
O << "2.0";
else if (Imm == DoubleToBits(-2.0))
O << "-2.0";
else if (Imm == DoubleToBits(4.0))
O << "4.0";
else if (Imm == DoubleToBits(-4.0))
O << "-4.0";
else if (Imm == 0x3fc45f306dc9c882 &&
STI.getFeatureBits()[AMDGPU::FeatureInv2PiInlineImm])
O << "0.15915494";
else {
assert(isUInt<32>(Imm) || Imm == 0x3fc45f306dc9c882);
// In rare situations, we will have a 32-bit literal in a 64-bit
// operand. This is technically allowed for the encoding of s_mov_b64.
O << formatHex(static_cast<uint64_t>(Imm));
}
}
void AMDGPUInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (!STI.getFeatureBits()[AMDGPU::FeatureGCN]) {
static_cast<R600InstPrinter*>(this)->printOperand(MI, OpNo, O);
return;
}
if (OpNo >= MI->getNumOperands()) {
O << "/*Missing OP" << OpNo << "*/";
return;
}
const MCOperand &Op = MI->getOperand(OpNo);
if (Op.isReg()) {
printRegOperand(Op.getReg(), O, MRI);
} else if (Op.isImm()) {
const MCInstrDesc &Desc = MII.get(MI->getOpcode());
switch (Desc.OpInfo[OpNo].OperandType) {
case AMDGPU::OPERAND_REG_IMM_INT32:
case AMDGPU::OPERAND_REG_IMM_FP32:
case AMDGPU::OPERAND_REG_INLINE_C_INT32:
case AMDGPU::OPERAND_REG_INLINE_C_FP32:
case MCOI::OPERAND_IMMEDIATE:
printImmediate32(Op.getImm(), STI, O);
break;
case AMDGPU::OPERAND_REG_IMM_INT64:
case AMDGPU::OPERAND_REG_IMM_FP64:
case AMDGPU::OPERAND_REG_INLINE_C_INT64:
case AMDGPU::OPERAND_REG_INLINE_C_FP64:
printImmediate64(Op.getImm(), STI, O);
break;
case AMDGPU::OPERAND_REG_INLINE_C_INT16:
case AMDGPU::OPERAND_REG_INLINE_C_FP16:
case AMDGPU::OPERAND_REG_IMM_INT16:
case AMDGPU::OPERAND_REG_IMM_FP16:
printImmediate16(Op.getImm(), STI, O);
break;
case AMDGPU::OPERAND_REG_INLINE_C_V2FP16:
case AMDGPU::OPERAND_REG_INLINE_C_V2INT16:
printImmediateV216(Op.getImm(), STI, O);
break;
case MCOI::OPERAND_UNKNOWN:
case MCOI::OPERAND_PCREL:
O << formatDec(Op.getImm());
break;
case MCOI::OPERAND_REGISTER:
// FIXME: This should be removed and handled somewhere else. Seems to come
// from a disassembler bug.
O << "/*invalid immediate*/";
break;
default:
// We hit this for the immediate instruction bits that don't yet have a
// custom printer.
llvm_unreachable("unexpected immediate operand type");
}
} else if (Op.isFPImm()) {
// We special case 0.0 because otherwise it will be printed as an integer.
if (Op.getFPImm() == 0.0)
O << "0.0";
else {
const MCInstrDesc &Desc = MII.get(MI->getOpcode());
int RCID = Desc.OpInfo[OpNo].RegClass;
unsigned RCBits = AMDGPU::getRegBitWidth(MRI.getRegClass(RCID));
if (RCBits == 32)
printImmediate32(FloatToBits(Op.getFPImm()), STI, O);
else if (RCBits == 64)
printImmediate64(DoubleToBits(Op.getFPImm()), STI, O);
else
llvm_unreachable("Invalid register class size");
}
} else if (Op.isExpr()) {
const MCExpr *Exp = Op.getExpr();
Exp->print(O, &MAI);
} else {
O << "/*INV_OP*/";
}
}
void AMDGPUInstPrinter::printOperandAndFPInputMods(const MCInst *MI,
unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned InputModifiers = MI->getOperand(OpNo).getImm();
// Use 'neg(...)' instead of '-' to avoid ambiguity.
// This is important for integer literals because
// -1 is not the same value as neg(1).
bool NegMnemo = false;
if (InputModifiers & SISrcMods::NEG) {
if (OpNo + 1 < MI->getNumOperands() &&
(InputModifiers & SISrcMods::ABS) == 0) {
const MCOperand &Op = MI->getOperand(OpNo + 1);
NegMnemo = Op.isImm() || Op.isFPImm();
}
if (NegMnemo) {
O << "neg(";
} else {
O << '-';
}
}
if (InputModifiers & SISrcMods::ABS)
O << '|';
printOperand(MI, OpNo + 1, STI, O);
if (InputModifiers & SISrcMods::ABS)
O << '|';
if (NegMnemo) {
O << ')';
}
}
void AMDGPUInstPrinter::printOperandAndIntInputMods(const MCInst *MI,
unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned InputModifiers = MI->getOperand(OpNo).getImm();
if (InputModifiers & SISrcMods::SEXT)
O << "sext(";
printOperand(MI, OpNo + 1, STI, O);
if (InputModifiers & SISrcMods::SEXT)
O << ')';
}
void AMDGPUInstPrinter::printDPPCtrl(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Imm = MI->getOperand(OpNo).getImm();
if (Imm <= 0x0ff) {
O << " quad_perm:[";
O << formatDec(Imm & 0x3) << ',';
O << formatDec((Imm & 0xc) >> 2) << ',';
O << formatDec((Imm & 0x30) >> 4) << ',';
O << formatDec((Imm & 0xc0) >> 6) << ']';
} else if ((Imm >= 0x101) && (Imm <= 0x10f)) {
O << " row_shl:";
printU4ImmDecOperand(MI, OpNo, O);
} else if ((Imm >= 0x111) && (Imm <= 0x11f)) {
O << " row_shr:";
printU4ImmDecOperand(MI, OpNo, O);
} else if ((Imm >= 0x121) && (Imm <= 0x12f)) {
O << " row_ror:";
printU4ImmDecOperand(MI, OpNo, O);
} else if (Imm == 0x130) {
O << " wave_shl:1";
} else if (Imm == 0x134) {
O << " wave_rol:1";
} else if (Imm == 0x138) {
O << " wave_shr:1";
} else if (Imm == 0x13c) {
O << " wave_ror:1";
} else if (Imm == 0x140) {
O << " row_mirror";
} else if (Imm == 0x141) {
O << " row_half_mirror";
} else if (Imm == 0x142) {
O << " row_bcast:15";
} else if (Imm == 0x143) {
O << " row_bcast:31";
} else {
llvm_unreachable("Invalid dpp_ctrl value");
}
}
void AMDGPUInstPrinter::printRowMask(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << " row_mask:";
printU4ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printBankMask(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << " bank_mask:";
printU4ImmOperand(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printBoundCtrl(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Imm = MI->getOperand(OpNo).getImm();
if (Imm) {
O << " bound_ctrl:0"; // XXX - this syntax is used in sp3
}
}
void AMDGPUInstPrinter::printSDWASel(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
using namespace llvm::AMDGPU::SDWA;
unsigned Imm = MI->getOperand(OpNo).getImm();
switch (Imm) {
case SdwaSel::BYTE_0: O << "BYTE_0"; break;
case SdwaSel::BYTE_1: O << "BYTE_1"; break;
case SdwaSel::BYTE_2: O << "BYTE_2"; break;
case SdwaSel::BYTE_3: O << "BYTE_3"; break;
case SdwaSel::WORD_0: O << "WORD_0"; break;
case SdwaSel::WORD_1: O << "WORD_1"; break;
case SdwaSel::DWORD: O << "DWORD"; break;
default: llvm_unreachable("Invalid SDWA data select operand");
}
}
void AMDGPUInstPrinter::printSDWADstSel(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << "dst_sel:";
printSDWASel(MI, OpNo, O);
}
void AMDGPUInstPrinter::printSDWASrc0Sel(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << "src0_sel:";
printSDWASel(MI, OpNo, O);
}
void AMDGPUInstPrinter::printSDWASrc1Sel(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
O << "src1_sel:";
printSDWASel(MI, OpNo, O);
}
void AMDGPUInstPrinter::printSDWADstUnused(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
using namespace llvm::AMDGPU::SDWA;
O << "dst_unused:";
unsigned Imm = MI->getOperand(OpNo).getImm();
switch (Imm) {
case DstUnused::UNUSED_PAD: O << "UNUSED_PAD"; break;
case DstUnused::UNUSED_SEXT: O << "UNUSED_SEXT"; break;
case DstUnused::UNUSED_PRESERVE: O << "UNUSED_PRESERVE"; break;
default: llvm_unreachable("Invalid SDWA dest_unused operand");
}
}
template <unsigned N>
void AMDGPUInstPrinter::printExpSrcN(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Opc = MI->getOpcode();
int EnIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::en);
unsigned En = MI->getOperand(EnIdx).getImm();
int ComprIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::compr);
// If compr is set, print as src0, src0, src1, src1
if (MI->getOperand(ComprIdx).getImm()) {
if (N == 1 || N == 2)
--OpNo;
else if (N == 3)
OpNo -= 2;
}
if (En & (1 << N))
printRegOperand(MI->getOperand(OpNo).getReg(), O, MRI);
else
O << "off";
}
void AMDGPUInstPrinter::printExpSrc0(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printExpSrcN<0>(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printExpSrc1(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printExpSrcN<1>(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printExpSrc2(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printExpSrcN<2>(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printExpSrc3(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printExpSrcN<3>(MI, OpNo, STI, O);
}
void AMDGPUInstPrinter::printExpTgt(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
// This is really a 6 bit field.
uint32_t Tgt = MI->getOperand(OpNo).getImm() & ((1 << 6) - 1);
if (Tgt <= 7)
O << " mrt" << Tgt;
else if (Tgt == 8)
O << " mrtz";
else if (Tgt == 9)
O << " null";
else if (Tgt >= 12 && Tgt <= 15)
O << " pos" << Tgt - 12;
else if (Tgt >= 32 && Tgt <= 63)
O << " param" << Tgt - 32;
else {
// Reserved values 10, 11
O << " invalid_target_" << Tgt;
}
}
static bool allOpsDefaultValue(const int* Ops, int NumOps, int Mod,
bool HasDstSel) {
int DefaultValue = (Mod == SISrcMods::OP_SEL_1);
for (int I = 0; I < NumOps; ++I) {
if (!!(Ops[I] & Mod) != DefaultValue)
return false;
}
if (HasDstSel && (Ops[0] & SISrcMods::DST_OP_SEL) != 0)
return false;
return true;
}
void AMDGPUInstPrinter::printPackedModifier(const MCInst *MI,
StringRef Name,
unsigned Mod,
raw_ostream &O) {
unsigned Opc = MI->getOpcode();
int NumOps = 0;
int Ops[3];
for (int OpName : { AMDGPU::OpName::src0_modifiers,
AMDGPU::OpName::src1_modifiers,
AMDGPU::OpName::src2_modifiers }) {
int Idx = AMDGPU::getNamedOperandIdx(Opc, OpName);
if (Idx == -1)
break;
Ops[NumOps++] = MI->getOperand(Idx).getImm();
}
const bool HasDstSel =
NumOps > 0 &&
Mod == SISrcMods::OP_SEL_0 &&
MII.get(MI->getOpcode()).TSFlags & SIInstrFlags::VOP3_OPSEL;
if (allOpsDefaultValue(Ops, NumOps, Mod, HasDstSel))
return;
O << Name;
for (int I = 0; I < NumOps; ++I) {
if (I != 0)
O << ',';
O << !!(Ops[I] & Mod);
}
if (HasDstSel) {
O << ',' << !!(Ops[0] & SISrcMods::DST_OP_SEL);
}
O << ']';
}
void AMDGPUInstPrinter::printOpSel(const MCInst *MI, unsigned,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printPackedModifier(MI, " op_sel:[", SISrcMods::OP_SEL_0, O);
}
void AMDGPUInstPrinter::printOpSelHi(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printPackedModifier(MI, " op_sel_hi:[", SISrcMods::OP_SEL_1, O);
}
void AMDGPUInstPrinter::printNegLo(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printPackedModifier(MI, " neg_lo:[", SISrcMods::NEG, O);
}
void AMDGPUInstPrinter::printNegHi(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
printPackedModifier(MI, " neg_hi:[", SISrcMods::NEG_HI, O);
}
void AMDGPUInstPrinter::printInterpSlot(const MCInst *MI, unsigned OpNum,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Imm = MI->getOperand(OpNum).getImm();
switch (Imm) {
case 0:
O << "p10";
break;
case 1:
O << "p20";
break;
case 2:
O << "p0";
break;
default:
O << "invalid_param_" << Imm;
}
}
void AMDGPUInstPrinter::printInterpAttr(const MCInst *MI, unsigned OpNum,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Attr = MI->getOperand(OpNum).getImm();
O << "attr" << Attr;
}
void AMDGPUInstPrinter::printInterpAttrChan(const MCInst *MI, unsigned OpNum,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Chan = MI->getOperand(OpNum).getImm();
O << '.' << "xyzw"[Chan & 0x3];
}
void AMDGPUInstPrinter::printVGPRIndexMode(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
unsigned Val = MI->getOperand(OpNo).getImm();
if (Val == 0) {
O << " 0";
return;
}
if (Val & VGPRIndexMode::DST_ENABLE)
O << " dst";
if (Val & VGPRIndexMode::SRC0_ENABLE)
O << " src0";
if (Val & VGPRIndexMode::SRC1_ENABLE)
O << " src1";
if (Val & VGPRIndexMode::SRC2_ENABLE)
O << " src2";
}
void AMDGPUInstPrinter::printMemOperand(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (!STI.getFeatureBits()[AMDGPU::FeatureGCN]) {
static_cast<R600InstPrinter*>(this)->printMemOperand(MI, OpNo, O);
return;
}
printOperand(MI, OpNo, STI, O);
O << ", ";
printOperand(MI, OpNo + 1, STI, O);
}
void AMDGPUInstPrinter::printIfSet(const MCInst *MI, unsigned OpNo,
raw_ostream &O, StringRef Asm,
StringRef Default) {
const MCOperand &Op = MI->getOperand(OpNo);
assert(Op.isImm());
if (Op.getImm() == 1) {
O << Asm;
} else {
O << Default;
}
}
void AMDGPUInstPrinter::printIfSet(const MCInst *MI, unsigned OpNo,
raw_ostream &O, char Asm) {
const MCOperand &Op = MI->getOperand(OpNo);
assert(Op.isImm());
if (Op.getImm() == 1)
O << Asm;
}
void AMDGPUInstPrinter::printAbs(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printAbs(MI, OpNo, O);
}
void AMDGPUInstPrinter::printClamp(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printClamp(MI, OpNo, O);
}
void AMDGPUInstPrinter::printHigh(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm())
O << " high";
}
void AMDGPUInstPrinter::printClampSI(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
if (MI->getOperand(OpNo).getImm())
O << " clamp";
}
void AMDGPUInstPrinter::printOModSI(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
int Imm = MI->getOperand(OpNo).getImm();
if (Imm == SIOutMods::MUL2)
O << " mul:2";
else if (Imm == SIOutMods::MUL4)
O << " mul:4";
else if (Imm == SIOutMods::DIV2)
O << " div:2";
}
void AMDGPUInstPrinter::printLiteral(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printLiteral(MI, OpNo, O);
}
void AMDGPUInstPrinter::printLast(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printLast(MI, OpNo, O);
}
void AMDGPUInstPrinter::printNeg(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printNeg(MI, OpNo, O);
}
void AMDGPUInstPrinter::printOMOD(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printOMOD(MI, OpNo, O);
}
void AMDGPUInstPrinter::printRel(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printRel(MI, OpNo, O);
}
void AMDGPUInstPrinter::printUpdateExecMask(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printUpdateExecMask(MI, OpNo, O);
}
void AMDGPUInstPrinter::printUpdatePred(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printUpdatePred(MI, OpNo, O);
}
void AMDGPUInstPrinter::printWrite(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printWrite(MI, OpNo, O);
}
void AMDGPUInstPrinter::printBankSwizzle(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printBankSwizzle(MI, OpNo, O);
}
void AMDGPUInstPrinter::printRSel(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printRSel(MI, OpNo, O);
}
void AMDGPUInstPrinter::printCT(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printCT(MI, OpNo, O);
}
void AMDGPUInstPrinter::printKCache(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
static_cast<R600InstPrinter*>(this)->printKCache(MI, OpNo, O);
}
void AMDGPUInstPrinter::printSendMsg(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
using namespace llvm::AMDGPU::SendMsg;
const unsigned SImm16 = MI->getOperand(OpNo).getImm();
const unsigned Id = SImm16 & ID_MASK_;
do {
if (Id == ID_INTERRUPT) {
if ((SImm16 & ~ID_MASK_) != 0) // Unused/unknown bits must be 0.
break;
O << "sendmsg(" << IdSymbolic[Id] << ')';
return;
}
if (Id == ID_GS || Id == ID_GS_DONE) {
if ((SImm16 & ~(ID_MASK_|OP_GS_MASK_|STREAM_ID_MASK_)) != 0) // Unused/unknown bits must be 0.
break;
const unsigned OpGs = (SImm16 & OP_GS_MASK_) >> OP_SHIFT_;
const unsigned StreamId = (SImm16 & STREAM_ID_MASK_) >> STREAM_ID_SHIFT_;
if (OpGs == OP_GS_NOP && Id != ID_GS_DONE) // NOP to be used for GS_DONE only.
break;
if (OpGs == OP_GS_NOP && StreamId != 0) // NOP does not use/define stream id bits.
break;
O << "sendmsg(" << IdSymbolic[Id] << ", " << OpGsSymbolic[OpGs];
if (OpGs != OP_GS_NOP) { O << ", " << StreamId; }
O << ')';
return;
}
if (Id == ID_SYSMSG) {
if ((SImm16 & ~(ID_MASK_|OP_SYS_MASK_)) != 0) // Unused/unknown bits must be 0.
break;
const unsigned OpSys = (SImm16 & OP_SYS_MASK_) >> OP_SHIFT_;
if (! (OP_SYS_FIRST_ <= OpSys && OpSys < OP_SYS_LAST_)) // Unused/unknown.
break;
O << "sendmsg(" << IdSymbolic[Id] << ", " << OpSysSymbolic[OpSys] << ')';
return;
}
} while (false);
O << SImm16; // Unknown simm16 code.
}
static void printSwizzleBitmask(const uint16_t AndMask,
const uint16_t OrMask,
const uint16_t XorMask,
raw_ostream &O) {
using namespace llvm::AMDGPU::Swizzle;
uint16_t Probe0 = ((0 & AndMask) | OrMask) ^ XorMask;
uint16_t Probe1 = ((BITMASK_MASK & AndMask) | OrMask) ^ XorMask;
O << "\"";
for (unsigned Mask = 1 << (BITMASK_WIDTH - 1); Mask > 0; Mask >>= 1) {
uint16_t p0 = Probe0 & Mask;
uint16_t p1 = Probe1 & Mask;
if (p0 == p1) {
if (p0 == 0) {
O << "0";
} else {
O << "1";
}
} else {
if (p0 == 0) {
O << "p";
} else {
O << "i";
}
}
}
O << "\"";
}
void AMDGPUInstPrinter::printSwizzle(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
using namespace llvm::AMDGPU::Swizzle;
uint16_t Imm = MI->getOperand(OpNo).getImm();
if (Imm == 0) {
return;
}
O << " offset:";
if ((Imm & QUAD_PERM_ENC_MASK) == QUAD_PERM_ENC) {
O << "swizzle(" << IdSymbolic[ID_QUAD_PERM];
for (auto i = 0; i < LANE_NUM; ++i) {
O << ",";
O << formatDec(Imm & LANE_MASK);
Imm >>= LANE_SHIFT;
}
O << ")";
} else if ((Imm & BITMASK_PERM_ENC_MASK) == BITMASK_PERM_ENC) {
uint16_t AndMask = (Imm >> BITMASK_AND_SHIFT) & BITMASK_MASK;
uint16_t OrMask = (Imm >> BITMASK_OR_SHIFT) & BITMASK_MASK;
uint16_t XorMask = (Imm >> BITMASK_XOR_SHIFT) & BITMASK_MASK;
if (AndMask == BITMASK_MAX &&
OrMask == 0 &&
countPopulation(XorMask) == 1) {
O << "swizzle(" << IdSymbolic[ID_SWAP];
O << ",";
O << formatDec(XorMask);
O << ")";
} else if (AndMask == BITMASK_MAX &&
OrMask == 0 && XorMask > 0 &&
isPowerOf2_64(XorMask + 1)) {
O << "swizzle(" << IdSymbolic[ID_REVERSE];
O << ",";
O << formatDec(XorMask + 1);
O << ")";
} else {
uint16_t GroupSize = BITMASK_MAX - AndMask + 1;
if (GroupSize > 1 &&
isPowerOf2_64(GroupSize) &&
OrMask < GroupSize &&
XorMask == 0) {
O << "swizzle(" << IdSymbolic[ID_BROADCAST];
O << ",";
O << formatDec(GroupSize);
O << ",";
O << formatDec(OrMask);
O << ")";
} else {
O << "swizzle(" << IdSymbolic[ID_BITMASK_PERM];
O << ",";
printSwizzleBitmask(AndMask, OrMask, XorMask, O);
O << ")";
}
}
} else {
printU16ImmDecOperand(MI, OpNo, O);
}
}
void AMDGPUInstPrinter::printWaitFlag(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI,
raw_ostream &O) {
AMDGPU::IsaInfo::IsaVersion ISA =
AMDGPU::IsaInfo::getIsaVersion(STI.getFeatureBits());
unsigned SImm16 = MI->getOperand(OpNo).getImm();
unsigned Vmcnt, Expcnt, Lgkmcnt;
decodeWaitcnt(ISA, SImm16, Vmcnt, Expcnt, Lgkmcnt);
bool NeedSpace = false;
if (Vmcnt != getVmcntBitMask(ISA)) {
O << "vmcnt(" << Vmcnt << ')';
NeedSpace = true;
}
if (Expcnt != getExpcntBitMask(ISA)) {
if (NeedSpace)
O << ' ';
O << "expcnt(" << Expcnt << ')';
NeedSpace = true;
}
if (Lgkmcnt != getLgkmcntBitMask(ISA)) {
if (NeedSpace)
O << ' ';
O << "lgkmcnt(" << Lgkmcnt << ')';
}
}
void AMDGPUInstPrinter::printHwreg(const MCInst *MI, unsigned OpNo,
const MCSubtargetInfo &STI, raw_ostream &O) {
using namespace llvm::AMDGPU::Hwreg;
unsigned SImm16 = MI->getOperand(OpNo).getImm();
const unsigned Id = (SImm16 & ID_MASK_) >> ID_SHIFT_;
const unsigned Offset = (SImm16 & OFFSET_MASK_) >> OFFSET_SHIFT_;
const unsigned Width = ((SImm16 & WIDTH_M1_MASK_) >> WIDTH_M1_SHIFT_) + 1;
O << "hwreg(";
if (ID_SYMBOLIC_FIRST_ <= Id && Id < ID_SYMBOLIC_LAST_) {
O << IdSymbolic[Id];
} else {
O << Id;
}
if (Width != WIDTH_M1_DEFAULT_ + 1 || Offset != OFFSET_DEFAULT_) {
O << ", " << Offset << ", " << Width;
}
O << ')';
}
#include "AMDGPUGenAsmWriter.inc"
void R600InstPrinter::printAbs(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, '|');
}
void R600InstPrinter::printBankSwizzle(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
int BankSwizzle = MI->getOperand(OpNo).getImm();
switch (BankSwizzle) {
case 1:
O << "BS:VEC_021/SCL_122";
break;
case 2:
O << "BS:VEC_120/SCL_212";
break;
case 3:
O << "BS:VEC_102/SCL_221";
break;
case 4:
O << "BS:VEC_201";
break;
case 5:
O << "BS:VEC_210";
break;
default:
break;
}
}
void R600InstPrinter::printClamp(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, "_SAT");
}
void R600InstPrinter::printCT(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
unsigned CT = MI->getOperand(OpNo).getImm();
switch (CT) {
case 0:
O << 'U';
break;
case 1:
O << 'N';
break;
default:
break;
}
}
void R600InstPrinter::printKCache(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
int KCacheMode = MI->getOperand(OpNo).getImm();
if (KCacheMode > 0) {
int KCacheBank = MI->getOperand(OpNo - 2).getImm();
O << "CB" << KCacheBank << ':';
int KCacheAddr = MI->getOperand(OpNo + 2).getImm();
int LineSize = (KCacheMode == 1) ? 16 : 32;
O << KCacheAddr * 16 << '-' << KCacheAddr * 16 + LineSize;
}
}
void R600InstPrinter::printLast(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, "*", " ");
}
void R600InstPrinter::printLiteral(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
const MCOperand &Op = MI->getOperand(OpNo);
assert(Op.isImm() || Op.isExpr());
if (Op.isImm()) {
int64_t Imm = Op.getImm();
O << Imm << '(' << BitsToFloat(Imm) << ')';
}
if (Op.isExpr()) {
Op.getExpr()->print(O << '@', &MAI);
}
}
void R600InstPrinter::printNeg(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, '-');
}
void R600InstPrinter::printOMOD(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
switch (MI->getOperand(OpNo).getImm()) {
default: break;
case 1:
O << " * 2.0";
break;
case 2:
O << " * 4.0";
break;
case 3:
O << " / 2.0";
break;
}
}
void R600InstPrinter::printMemOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
printOperand(MI, OpNo, O);
O << ", ";
printOperand(MI, OpNo + 1, O);
}
void R600InstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
if (OpNo >= MI->getNumOperands()) {
O << "/*Missing OP" << OpNo << "*/";
return;
}
const MCOperand &Op = MI->getOperand(OpNo);
if (Op.isReg()) {
switch (Op.getReg()) {
// This is the default predicate state, so we don't need to print it.
case AMDGPU::PRED_SEL_OFF:
break;
default:
O << getRegisterName(Op.getReg());
break;
}
} else if (Op.isImm()) {
O << Op.getImm();
} else if (Op.isFPImm()) {
// We special case 0.0 because otherwise it will be printed as an integer.
if (Op.getFPImm() == 0.0)
O << "0.0";
else {
O << Op.getFPImm();
}
} else if (Op.isExpr()) {
const MCExpr *Exp = Op.getExpr();
Exp->print(O, &MAI);
} else {
O << "/*INV_OP*/";
}
}
void R600InstPrinter::printRel(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, '+');
}
void R600InstPrinter::printRSel(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
unsigned Sel = MI->getOperand(OpNo).getImm();
switch (Sel) {
case 0:
O << 'X';
break;
case 1:
O << 'Y';
break;
case 2:
O << 'Z';
break;
case 3:
O << 'W';
break;
case 4:
O << '0';
break;
case 5:
O << '1';
break;
case 7:
O << '_';
break;
default:
break;
}
}
void R600InstPrinter::printUpdateExecMask(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, "ExecMask,");
}
void R600InstPrinter::printUpdatePred(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
AMDGPUInstPrinter::printIfSet(MI, OpNo, O, "Pred,");
}
void R600InstPrinter::printWrite(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
const MCOperand &Op = MI->getOperand(OpNo);
if (Op.getImm() == 0) {
O << " (MASKED)";
}
}
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