39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
//===- AttrToLLVMConverter.cpp - Arith attributes conversion to LLVM ------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/ArithCommon/AttrToLLVMConverter.h"
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using namespace mlir;
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// Map arithmetic fastmath enum values to LLVMIR enum values.
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LLVM::FastmathFlags
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mlir::arith::convertArithFastMathFlagsToLLVM(arith::FastMathFlags arithFMF) {
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LLVM::FastmathFlags llvmFMF{};
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const std::pair<arith::FastMathFlags, LLVM::FastmathFlags> flags[] = {
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{arith::FastMathFlags::nnan, LLVM::FastmathFlags::nnan},
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{arith::FastMathFlags::ninf, LLVM::FastmathFlags::ninf},
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{arith::FastMathFlags::nsz, LLVM::FastmathFlags::nsz},
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{arith::FastMathFlags::arcp, LLVM::FastmathFlags::arcp},
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{arith::FastMathFlags::contract, LLVM::FastmathFlags::contract},
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{arith::FastMathFlags::afn, LLVM::FastmathFlags::afn},
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{arith::FastMathFlags::reassoc, LLVM::FastmathFlags::reassoc}};
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for (auto fmfMap : flags) {
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if (bitEnumContainsAny(arithFMF, fmfMap.first))
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llvmFMF = llvmFMF | fmfMap.second;
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}
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return llvmFMF;
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}
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// Create an LLVM fastmath attribute from a given arithmetic fastmath attribute.
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LLVM::FastmathFlagsAttr
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mlir::arith::convertArithFastMathAttrToLLVM(arith::FastMathFlagsAttr fmfAttr) {
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arith::FastMathFlags arithFMF = fmfAttr.getValue();
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return LLVM::FastmathFlagsAttr::get(
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fmfAttr.getContext(), convertArithFastMathFlagsToLLVM(arithFMF));
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}
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