llvm/llvm/include/llvm/CodeGen/TargetOpcodes.h

//===-- llvm/CodeGen/TargetOpcodes.h - Target Indep Opcodes -----*- 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
//
//===----------------------------------------------------------------------===//
//
// This file defines the target independent instruction opcodes.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_TARGETOPCODES_H
#define LLVM_CODEGEN_TARGETOPCODES_H

namespace llvm {

/// Invariant opcodes: All instruction sets have these as their low opcodes.
///
namespace TargetOpcode {
enum { … };
} // end namespace TargetOpcode

/// Check whether the given Opcode is a generic opcode that is not supposed
/// to appear after ISel.
inline bool isPreISelGenericOpcode(unsigned Opcode) { … }

/// Check whether the given Opcode is a target-specific opcode.
inline bool isTargetSpecificOpcode(unsigned Opcode) { … }

/// \returns true if \p Opcode is an optimization hint opcode which is not
/// supposed to appear after ISel.
inline bool isPreISelGenericOptimizationHint(unsigned Opcode) { … }

} // end namespace llvm

#endif