e553ac4d81
This PR changes the LLVM dialect's IntegerOverflowFlags to be stored on operations as native properties. Reland to fix flang
82 lines
3.2 KiB
C++
82 lines
3.2 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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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 [arithFlag, llvmFlag] : flags) {
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if (bitEnumContainsAny(arithFMF, arithFlag))
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llvmFMF = llvmFMF | llvmFlag;
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}
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return llvmFMF;
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}
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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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LLVM::IntegerOverflowFlags mlir::arith::convertArithOverflowFlagsToLLVM(
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arith::IntegerOverflowFlags arithFlags) {
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LLVM::IntegerOverflowFlags llvmFlags{};
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const std::pair<arith::IntegerOverflowFlags, LLVM::IntegerOverflowFlags>
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flags[] = {
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{arith::IntegerOverflowFlags::nsw, LLVM::IntegerOverflowFlags::nsw},
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{arith::IntegerOverflowFlags::nuw, LLVM::IntegerOverflowFlags::nuw}};
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for (auto [arithFlag, llvmFlag] : flags) {
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if (bitEnumContainsAny(arithFlags, arithFlag))
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llvmFlags = llvmFlags | llvmFlag;
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}
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return llvmFlags;
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}
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LLVM::RoundingMode
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mlir::arith::convertArithRoundingModeToLLVM(arith::RoundingMode roundingMode) {
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switch (roundingMode) {
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case arith::RoundingMode::downward:
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return LLVM::RoundingMode::TowardNegative;
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case arith::RoundingMode::to_nearest_away:
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return LLVM::RoundingMode::NearestTiesToAway;
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case arith::RoundingMode::to_nearest_even:
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return LLVM::RoundingMode::NearestTiesToEven;
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case arith::RoundingMode::toward_zero:
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return LLVM::RoundingMode::TowardZero;
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case arith::RoundingMode::upward:
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return LLVM::RoundingMode::TowardPositive;
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}
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llvm_unreachable("Unhandled rounding mode");
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}
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LLVM::RoundingModeAttr mlir::arith::convertArithRoundingModeAttrToLLVM(
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arith::RoundingModeAttr roundingModeAttr) {
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assert(roundingModeAttr && "Expecting valid attribute");
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return LLVM::RoundingModeAttr::get(
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roundingModeAttr.getContext(),
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convertArithRoundingModeToLLVM(roundingModeAttr.getValue()));
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}
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LLVM::FPExceptionBehaviorAttr
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mlir::arith::getLLVMDefaultFPExceptionBehavior(MLIRContext &context) {
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return LLVM::FPExceptionBehaviorAttr::get(&context,
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LLVM::FPExceptionBehavior::Ignore);
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}
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