LLVMAttrs.h

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//===- LLVMDialect.h - MLIR LLVM IR dialect ---------------------*- 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 LLVM IR dialect in MLIR, containing LLVM operations and
// LLVM type system.
//
//===----------------------------------------------------------------------===//
 
#ifndef MLIR_DIALECT_LLVMIR_LLVMATTRS_H_
#define MLIR_DIALECT_LLVMIR_LLVMATTRS_H_
 
#include "mlir/Dialect/LLVMIR/LLVMTypes.h"
#include "mlir/Dialect/Ptr/IR/MemorySpaceInterfaces.h"
#include "mlir/IR/OpImplementation.h"
#include "mlir/Interfaces/DataLayoutInterfaces.h"
#include <optional>
 
#include "mlir/Dialect/LLVMIR/LLVMOpsEnums.h.inc"
 
namespace mlir {
namespace LLVM {
 
/// This class represents the base attribute for all debug info attributes.
class DINodeAttr : public Attribute {
public:
  using Attribute::Attribute;
 
  // Support LLVM type casting.
  static bool classof(Attribute attr);
};
 
/// This class represents a LLVM attribute that describes a debug info scope.
class DIScopeAttr : public DINodeAttr {
public:
  using DINodeAttr::DINodeAttr;
 
  /// Support LLVM type casting.
  static bool classof(Attribute attr);
};
 
/// This class represents a LLVM attribute that describes a local debug info
/// scope.
class DILocalScopeAttr : public DIScopeAttr {
public:
  using DIScopeAttr::DIScopeAttr;
 
  /// Support LLVM type casting.
  static bool classof(Attribute attr);
};
 
/// This class represents a LLVM attribute that describes a debug info type.
class DITypeAttr : public DINodeAttr {
public:
  using DINodeAttr::DINodeAttr;
 
  /// Support LLVM type casting.
  static bool classof(Attribute attr);
};
 
/// This class represents a LLVM attribute that describes a debug info variable.
class DIVariableAttr : public DINodeAttr {
public:
  using DINodeAttr::DINodeAttr;
 
  /// Support LLVM type casting.
  static bool classof(Attribute attr);
};
 
/// Base class for LLVM attributes participating in the TBAA graph.
class TBAANodeAttr : public Attribute {
public:
  using Attribute::Attribute;
 
  /// Support LLVM type casting.
  static bool classof(Attribute attr);
 
  /// Required by DenseMapInfo to create the empty key.
  static TBAANodeAttr getFromOpaquePointer(const void *pointer) {
    return TBAANodeAttr(reinterpret_cast<const ImplType *>(pointer));
  }
};
 
// Inline the LLVM generated Linkage enum and utility.
// This is only necessary to isolate the "enum generated code" from the
// attribute definition itself.
// TODO: this shouldn't be needed after we unify the attribute generation, i.e.
// --gen-attr-* and --gen-attrdef-*.
using cconv::CConv;
using linkage::Linkage;
using tailcallkind::TailCallKind;
 
namespace detail {
/// Checks whether the given type is an LLVM type that can be loaded or stored.
bool isValidLoadStoreImpl(Type type, ptr::AtomicOrdering ordering,
                          std::optional<int64_t> alignment,
                          const ::mlir::DataLayout *dataLayout,
                          function_ref<InFlightDiagnostic()> emitError);
 
/// Verifies that a module flag value can be exported to LLVM IR.
LogicalResult
verifyModuleFlagValue(StringAttr key, Attribute value,
                      function_ref<InFlightDiagnostic()> emitError);
} // namespace detail
} // namespace LLVM
} // namespace mlir
 
#include "mlir/Dialect/LLVMIR/LLVMAttrInterfaces.h.inc"
 
#define GET_ATTRDEF_CLASSES
#include "mlir/Dialect/LLVMIR/LLVMOpsAttrDefs.h.inc"
 
namespace mlir {
namespace LLVM {
 
/// Canonical name used when attaching LoopAnnotationAttr as a discardable
/// attribute on operations that do not declare it inherently.
inline constexpr llvm::StringLiteral getLoopAnnotationAttrName() {
  return LoopAnnotationAttr::name;
}
 
} // namespace LLVM
} // namespace mlir
 
#endif // MLIR_DIALECT_LLVMIR_LLVMATTRS_H_