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//===- AttrToLLVMConverter.cpp - Arith attributes conversion to LLVM ------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/ArithCommon/AttrToLLVMConverter.h"
using namespace mlir;
// Map arithmetic fastmath enum values to LLVMIR enum values.
LLVM::FastmathFlags
mlir::arith::convertArithFastMathFlagsToLLVM(arith::FastMathFlags arithFMF) {
LLVM::FastmathFlags llvmFMF{};
const std::pair<arith::FastMathFlags, LLVM::FastmathFlags> flags[] = {
{arith::FastMathFlags::nnan, LLVM::FastmathFlags::nnan},
{arith::FastMathFlags::ninf, LLVM::FastmathFlags::ninf},
{arith::FastMathFlags::nsz, LLVM::FastmathFlags::nsz},
{arith::FastMathFlags::arcp, LLVM::FastmathFlags::arcp},
{arith::FastMathFlags::contract, LLVM::FastmathFlags::contract},
{arith::FastMathFlags::afn, LLVM::FastmathFlags::afn},
{arith::FastMathFlags::reassoc, LLVM::FastmathFlags::reassoc}};
for (auto fmfMap : flags) {
if (bitEnumContainsAny(arithFMF, fmfMap.first))
llvmFMF = llvmFMF | fmfMap.second;
}
return llvmFMF;
}
// Create an LLVM fastmath attribute from a given arithmetic fastmath attribute.
LLVM::FastmathFlagsAttr
mlir::arith::convertArithFastMathAttrToLLVM(arith::FastMathFlagsAttr fmfAttr) {
arith::FastMathFlags arithFMF = fmfAttr.getValue();
return LLVM::FastmathFlagsAttr::get(
fmfAttr.getContext(), convertArithFastMathFlagsToLLVM(arithFMF));
}
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