77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//===- MathOps.cpp - MLIR operations for math implementation --------------===//
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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/Dialect/Arithmetic/IR/Arithmetic.h"
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#include "mlir/Dialect/Math/IR/Math.h"
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#include "mlir/IR/Builders.h"
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using namespace mlir;
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using namespace mlir::math;
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//===----------------------------------------------------------------------===//
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// TableGen'd op method definitions
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//===----------------------------------------------------------------------===//
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#define GET_OP_CLASSES
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#include "mlir/Dialect/Math/IR/MathOps.cpp.inc"
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//===----------------------------------------------------------------------===//
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// CeilOp folder
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//===----------------------------------------------------------------------===//
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OpFoldResult math::CeilOp::fold(ArrayRef<Attribute> operands) {
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auto constOperand = operands.front();
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if (!constOperand)
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return {};
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auto attr = constOperand.dyn_cast<FloatAttr>();
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if (!attr)
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return {};
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APFloat sourceVal = attr.getValue();
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sourceVal.roundToIntegral(llvm::RoundingMode::TowardPositive);
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return FloatAttr::get(getType(), sourceVal);
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}
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//===----------------------------------------------------------------------===//
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// Log2Op folder
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//===----------------------------------------------------------------------===//
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OpFoldResult math::Log2Op::fold(ArrayRef<Attribute> operands) {
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auto constOperand = operands.front();
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if (!constOperand)
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return {};
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auto attr = constOperand.dyn_cast<FloatAttr>();
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if (!attr)
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return {};
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auto ft = getType().cast<FloatType>();
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APFloat apf = attr.getValue();
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if (apf.isNegative())
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return {};
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if (ft.getWidth() == 64)
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return FloatAttr::get(getType(), log2(apf.convertToDouble()));
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if (ft.getWidth() == 32)
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return FloatAttr::get(getType(), log2f(apf.convertToDouble()));
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return {};
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}
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/// Materialize an integer or floating point constant.
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Operation *math::MathDialect::materializeConstant(OpBuilder &builder,
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Attribute value, Type type,
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Location loc) {
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return builder.create<arith::ConstantOp>(loc, value, type);
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}
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