llvm/mlir/include/mlir/Conversion/ArithCommon/AttrToLLVMConverter.h

//===- AttrToLLVMConverter.h - Arith attributes conversion ------*- 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 MLIR_CONVERSION_ARITHCOMMON_ATTRTOLLVMCONVERTER_H
#define MLIR_CONVERSION_ARITHCOMMON_ATTRTOLLVMCONVERTER_H

#include "mlir/Dialect/Arith/IR/Arith.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"

//===----------------------------------------------------------------------===//
// Support for converting Arith FastMathFlags to LLVM FastmathFlags
//===----------------------------------------------------------------------===//

namespace mlir {
namespace arith {
/// Maps arithmetic fastmath enum values to LLVM enum values.
LLVM::FastmathFlags
convertArithFastMathFlagsToLLVM(arith::FastMathFlags arithFMF);

/// Creates an LLVM fastmath attribute from a given arithmetic fastmath
/// attribute.
LLVM::FastmathFlagsAttr
convertArithFastMathAttrToLLVM(arith::FastMathFlagsAttr fmfAttr);

/// Maps arithmetic overflow enum values to LLVM enum values.
LLVM::IntegerOverflowFlags
convertArithOverflowFlagsToLLVM(arith::IntegerOverflowFlags arithFlags);

/// Creates an LLVM rounding mode enum value from a given arithmetic rounding
/// mode enum value.
LLVM::RoundingMode
convertArithRoundingModeToLLVM(arith::RoundingMode roundingMode);

/// Creates an LLVM rounding mode attribute from a given arithmetic rounding
/// mode attribute.
LLVM::RoundingModeAttr
convertArithRoundingModeAttrToLLVM(arith::RoundingModeAttr roundingModeAttr);

/// Returns an attribute for the default LLVM FP exception behavior.
LLVM::FPExceptionBehaviorAttr
getLLVMDefaultFPExceptionBehavior(MLIRContext &context);

// Attribute converter that populates a NamedAttrList by removing the fastmath
// attribute from the source operation attributes, and replacing it with an
// equivalent LLVM fastmath attribute.
template <typename SourceOp, typename TargetOp>
class AttrConvertFastMathToLLVM { … };

// Attribute converter that populates a NamedAttrList by removing the overflow
// attribute from the source operation attributes, and replacing it with an
// equivalent LLVM overflow attribute.
template <typename SourceOp, typename TargetOp>
class AttrConvertOverflowToLLVM { … };

template <typename SourceOp, typename TargetOp>
class AttrConverterConstrainedFPToLLVM { … };

} // namespace arith
} // namespace mlir

#endif // MLIR_CONVERSION_ARITHCOMMON_ATTRTOLLVMCONVERTER_H