AMDGPUAsmUtils.h

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//===-- AMDGPUAsmUtils.h - AsmParser/InstPrinter common ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUASMUTILS_H
#define LLVM_LIB_TARGET_AMDGPU_UTILS_AMDGPUASMUTILS_H
 
#include "SIDefines.h"
 
#include "llvm/ADT/StringRef.h"
 
namespace llvm {
 
class StringLiteral;
class MCSubtargetInfo;
 
namespace AMDGPU {
 
const int OPR_ID_UNKNOWN = -1;
const int OPR_ID_UNSUPPORTED = -2;
const int OPR_ID_DUPLICATE = -3;
const int OPR_VAL_INVALID = -4;
 
struct CustomOperand {
  StringLiteral Name;
  unsigned Encoding = 0;
  bool (*Cond)(const MCSubtargetInfo &STI) = nullptr;
};
 
struct CustomOperandVal {
  StringLiteral Name;
  unsigned Max;
  unsigned Default;
  unsigned Shift;
  unsigned Width;
  bool (*Cond)(const MCSubtargetInfo &STI) = nullptr;
  unsigned Mask = (1 << Width) - 1;
 
  unsigned decode(unsigned Code) const { return (Code >> Shift) & Mask; }
 
  unsigned encode(unsigned Val) const { return (Val & Mask) << Shift; }
 
  unsigned getMask() const { return Mask << Shift; }
 
  bool isValid(unsigned Val) const { return Val <= Max; }
 
  bool isSupported(const MCSubtargetInfo &STI) const {
    return !Cond || Cond(STI);
  }
};
 
namespace DepCtr {
 
extern const CustomOperandVal DepCtrInfo[];
extern const int DEP_CTR_SIZE;
 
} // namespace DepCtr
 
// Symbolic names for the sendmsg(msg_id, operation, stream) syntax.
namespace SendMsg {
 
/// Map from a symbolic name for a msg_id to the message portion of the
/// immediate encoding. A negative return value indicates that the Name was
/// unknown or unsupported on this target.
int64_t getMsgId(StringRef Name, const MCSubtargetInfo &STI);
 
/// Map from an encoding to the symbolic name for a msg_id immediate. This is
/// doing opposite of getMsgId().
StringRef getMsgName(uint64_t Encoding, const MCSubtargetInfo &STI);
 
/// Map from a symbolic name for a sendmsg operation to the operation portion of
/// the immediate encoding. A negative return value indicates that the Name was
/// unknown or unsupported on this target.
int64_t getMsgOpId(int64_t MsgId, StringRef Name, const MCSubtargetInfo &STI);
 
/// Map from an encoding to the symbolic name for a sendmsg operation. This is
/// doing opposite of getMsgOpId().
StringRef getMsgOpName(int64_t MsgId, uint64_t Encoding,
                       const MCSubtargetInfo &STI);
 
} // namespace SendMsg
 
namespace Hwreg { // Symbolic names for the hwreg(...) syntax.
 
int64_t getHwregId(StringRef Name, const MCSubtargetInfo &STI);
StringRef getHwreg(uint64_t Encoding, const MCSubtargetInfo &STI);
 
} // namespace Hwreg
 
namespace MTBUFFormat {
 
extern StringLiteral const DfmtSymbolic[];
extern StringLiteral const NfmtSymbolicGFX10[];
extern StringLiteral const NfmtSymbolicSICI[];
extern StringLiteral const NfmtSymbolicVI[];
extern StringLiteral const UfmtSymbolicGFX10[];
extern StringLiteral const UfmtSymbolicGFX11[];
extern unsigned const DfmtNfmt2UFmtGFX10[];
extern unsigned const DfmtNfmt2UFmtGFX11[];
 
} // namespace MTBUFFormat
 
namespace Swizzle { // Symbolic names for the swizzle(...) syntax.
 
extern const char* const IdSymbolic[];
 
} // namespace Swizzle
 
namespace VGPRIndexMode { // Symbolic names for the gpr_idx(...) syntax.
 
extern const char* const IdSymbolic[];
 
} // namespace VGPRIndexMode
 
} // namespace AMDGPU
} // namespace llvm
 
#endif