4d4d4785e0
This patch adds #include <optional> to those files containing llvm::Optional<...> or Optional<...>. I'll post a separate patch to actually replace llvm::Optional with std::optional. This is part of an effort to migrate from llvm::Optional to std::optional: https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
581 lines
25 KiB
C++
581 lines
25 KiB
C++
//===-- HLFIRTools.cpp ----------------------------------------------------===//
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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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//
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// Tools to manipulate HLFIR variable and expressions
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Optimizer/Builder/HLFIRTools.h"
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#include "flang/Optimizer/Builder/FIRBuilder.h"
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#include "flang/Optimizer/Builder/MutableBox.h"
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#include "flang/Optimizer/Builder/Todo.h"
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#include "flang/Optimizer/HLFIR/HLFIROps.h"
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#include "mlir/IR/BlockAndValueMapping.h"
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#include <optional>
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// Return explicit extents. If the base is a fir.box, this won't read it to
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// return the extents and will instead return an empty vector.
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static llvm::SmallVector<mlir::Value>
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getExplicitExtents(fir::FortranVariableOpInterface var) {
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llvm::SmallVector<mlir::Value> result;
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if (mlir::Value shape = var.getShape()) {
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auto *shapeOp = shape.getDefiningOp();
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if (auto s = mlir::dyn_cast_or_null<fir::ShapeOp>(shapeOp)) {
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auto e = s.getExtents();
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result.append(e.begin(), e.end());
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} else if (auto s = mlir::dyn_cast_or_null<fir::ShapeShiftOp>(shapeOp)) {
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auto e = s.getExtents();
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result.append(e.begin(), e.end());
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} else if (mlir::dyn_cast_or_null<fir::ShiftOp>(shapeOp)) {
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return {};
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} else {
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TODO(var->getLoc(), "read fir.shape to get extents");
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}
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}
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return result;
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}
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// Return explicit lower bounds. For pointers and allocatables, this will not
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// read the lower bounds and instead return an empty vector.
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static llvm::SmallVector<mlir::Value>
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getExplicitLbounds(fir::FortranVariableOpInterface var) {
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llvm::SmallVector<mlir::Value> result;
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if (mlir::Value shape = var.getShape()) {
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auto *shapeOp = shape.getDefiningOp();
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if (auto s = mlir::dyn_cast_or_null<fir::ShapeOp>(shapeOp)) {
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return {};
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} else if (auto s = mlir::dyn_cast_or_null<fir::ShapeShiftOp>(shapeOp)) {
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auto e = s.getOrigins();
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result.append(e.begin(), e.end());
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} else if (auto s = mlir::dyn_cast_or_null<fir::ShiftOp>(shapeOp)) {
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auto e = s.getOrigins();
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result.append(e.begin(), e.end());
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} else {
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TODO(var->getLoc(), "read fir.shape to get lower bounds");
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}
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}
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return result;
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}
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static llvm::SmallVector<mlir::Value>
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getExplicitTypeParams(fir::FortranVariableOpInterface var) {
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llvm::SmallVector<mlir::Value> res;
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mlir::OperandRange range = var.getExplicitTypeParams();
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res.append(range.begin(), range.end());
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return res;
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}
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std::pair<fir::ExtendedValue, llvm::Optional<hlfir::CleanupFunction>>
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hlfir::translateToExtendedValue(mlir::Location loc, fir::FirOpBuilder &builder,
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hlfir::Entity entity) {
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if (auto variable = entity.getIfVariableInterface())
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return {hlfir::translateToExtendedValue(loc, builder, variable), {}};
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if (entity.isVariable()) {
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if (entity.isScalar() && !entity.hasLengthParameters() &&
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!hlfir::isBoxAddressOrValueType(entity.getType()))
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return {fir::ExtendedValue{entity.getBase()}, std::nullopt};
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TODO(loc, "HLFIR variable to fir::ExtendedValue without a "
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"FortranVariableOpInterface");
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}
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if (entity.getType().isa<hlfir::ExprType>()) {
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hlfir::AssociateOp associate = hlfir::genAssociateExpr(
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loc, builder, entity, entity.getType(), "adapt.valuebyref");
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auto *bldr = &builder;
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hlfir::CleanupFunction cleanup = [bldr, loc, associate]() -> void {
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bldr->create<hlfir::EndAssociateOp>(loc, associate);
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};
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hlfir::Entity temp{associate.getBase()};
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return {translateToExtendedValue(loc, builder, temp).first, cleanup};
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}
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return {{static_cast<mlir::Value>(entity)}, {}};
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}
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mlir::Value hlfir::Entity::getFirBase() const {
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if (fir::FortranVariableOpInterface variable = getIfVariableInterface()) {
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if (auto declareOp =
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mlir::dyn_cast<hlfir::DeclareOp>(variable.getOperation()))
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return declareOp.getOriginalBase();
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if (auto associateOp =
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mlir::dyn_cast<hlfir::AssociateOp>(variable.getOperation()))
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return associateOp.getFirBase();
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}
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return getBase();
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}
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fir::ExtendedValue
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hlfir::translateToExtendedValue(mlir::Location loc, fir::FirOpBuilder &builder,
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fir::FortranVariableOpInterface variable) {
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/// When going towards FIR, use the original base value to avoid
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/// introducing descriptors at runtime when they are not required.
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mlir::Value firBase = Entity{variable}.getFirBase();
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if (variable.isPointer() || variable.isAllocatable())
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TODO(variable->getLoc(), "pointer or allocatable "
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"FortranVariableOpInterface to extendedValue");
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if (firBase.getType().isa<fir::BaseBoxType>())
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return fir::BoxValue(firBase, getExplicitLbounds(variable),
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getExplicitTypeParams(variable));
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if (variable.isCharacter()) {
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if (variable.isArray())
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return fir::CharArrayBoxValue(firBase, variable.getExplicitCharLen(),
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getExplicitExtents(variable),
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getExplicitLbounds(variable));
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if (auto boxCharType = firBase.getType().dyn_cast<fir::BoxCharType>()) {
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auto unboxed = builder.create<fir::UnboxCharOp>(
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loc, fir::ReferenceType::get(boxCharType.getEleTy()),
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builder.getIndexType(), firBase);
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return fir::CharBoxValue(unboxed.getResult(0),
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variable.getExplicitCharLen());
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}
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return fir::CharBoxValue(firBase, variable.getExplicitCharLen());
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}
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if (variable.isArray())
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return fir::ArrayBoxValue(firBase, getExplicitExtents(variable),
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getExplicitLbounds(variable));
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return firBase;
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}
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fir::FortranVariableOpInterface
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hlfir::genDeclare(mlir::Location loc, fir::FirOpBuilder &builder,
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const fir::ExtendedValue &exv, llvm::StringRef name,
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fir::FortranVariableFlagsAttr flags) {
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mlir::Value base = fir::getBase(exv);
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assert(fir::conformsWithPassByRef(base.getType()) &&
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"entity being declared must be in memory");
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mlir::Value shapeOrShift;
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llvm::SmallVector<mlir::Value> lenParams;
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exv.match(
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[&](const fir::CharBoxValue &box) {
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lenParams.emplace_back(box.getLen());
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},
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[&](const fir::ArrayBoxValue &) {
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shapeOrShift = builder.createShape(loc, exv);
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},
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[&](const fir::CharArrayBoxValue &box) {
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shapeOrShift = builder.createShape(loc, exv);
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lenParams.emplace_back(box.getLen());
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},
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[&](const fir::BoxValue &box) {
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if (!box.getLBounds().empty())
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shapeOrShift = builder.createShape(loc, exv);
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lenParams.append(box.getExplicitParameters().begin(),
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box.getExplicitParameters().end());
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},
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[&](const fir::MutableBoxValue &box) {
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lenParams.append(box.nonDeferredLenParams().begin(),
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box.nonDeferredLenParams().end());
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},
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[](const auto &) {});
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auto declareOp = builder.create<hlfir::DeclareOp>(
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loc, base, name, shapeOrShift, lenParams, flags);
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return mlir::cast<fir::FortranVariableOpInterface>(declareOp.getOperation());
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}
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hlfir::AssociateOp hlfir::genAssociateExpr(mlir::Location loc,
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fir::FirOpBuilder &builder,
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hlfir::Entity value,
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mlir::Type variableType,
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llvm::StringRef name) {
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assert(value.isValue() && "must not be a variable");
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mlir::Value shape{};
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if (value.isArray())
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shape = genShape(loc, builder, value);
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mlir::Value source = value;
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// Lowered scalar expression values for numerical and logical may have a
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// different type than what is required for the type in memory (logical
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// expressions are typically manipulated as i1, but needs to be stored
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// according to the fir.logical<kind> so that the storage size is correct).
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// Character length mismatches are ignored (it is ok for one to be dynamic
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// and the other static).
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mlir::Type varEleTy = getFortranElementType(variableType);
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mlir::Type valueEleTy = getFortranElementType(value.getType());
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if (varEleTy != valueEleTy && !(valueEleTy.isa<fir::CharacterType>() &&
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varEleTy.isa<fir::CharacterType>())) {
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assert(value.isScalar() && fir::isa_trivial(value.getType()));
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source = builder.createConvert(loc, fir::unwrapPassByRefType(variableType),
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value);
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}
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llvm::SmallVector<mlir::Value> lenParams;
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genLengthParameters(loc, builder, value, lenParams);
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return builder.create<hlfir::AssociateOp>(loc, source, name, shape, lenParams,
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fir::FortranVariableFlagsAttr{});
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}
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mlir::Value hlfir::genVariableRawAddress(mlir::Location loc,
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fir::FirOpBuilder &builder,
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hlfir::Entity var) {
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assert(var.isVariable() && "only address of variables can be taken");
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mlir::Value baseAddr = var.getFirBase();
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if (var.isMutableBox())
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baseAddr = builder.create<fir::LoadOp>(loc, baseAddr);
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// Get raw address.
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if (baseAddr.getType().isa<fir::BaseBoxType>()) {
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auto addrType =
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fir::ReferenceType::get(fir::unwrapPassByRefType(baseAddr.getType()));
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baseAddr = builder.create<fir::BoxAddrOp>(loc, addrType, baseAddr);
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}
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return baseAddr;
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}
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mlir::Value hlfir::genVariableBoxChar(mlir::Location loc,
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fir::FirOpBuilder &builder,
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hlfir::Entity var) {
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assert(var.isVariable() && "only address of variables can be taken");
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if (var.getType().isa<fir::BoxCharType>())
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return var;
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mlir::Value addr = genVariableRawAddress(loc, builder, var);
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llvm::SmallVector<mlir::Value> lengths;
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genLengthParameters(loc, builder, var, lengths);
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assert(lengths.size() == 1);
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auto charType = var.getFortranElementType().cast<fir::CharacterType>();
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auto boxCharType =
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fir::BoxCharType::get(builder.getContext(), charType.getFKind());
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auto scalarAddr =
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builder.createConvert(loc, fir::ReferenceType::get(charType), addr);
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return builder.create<fir::EmboxCharOp>(loc, boxCharType, scalarAddr,
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lengths[0]);
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}
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hlfir::Entity hlfir::loadTrivialScalar(mlir::Location loc,
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fir::FirOpBuilder &builder,
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Entity entity) {
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entity = derefPointersAndAllocatables(loc, builder, entity);
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if (entity.isVariable() && entity.isScalar() &&
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fir::isa_trivial(entity.getFortranElementType())) {
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return Entity{builder.create<fir::LoadOp>(loc, entity)};
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}
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return entity;
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}
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static std::optional<llvm::SmallVector<mlir::Value>>
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getNonDefaultLowerBounds(mlir::Location loc, fir::FirOpBuilder &builder,
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hlfir::Entity entity) {
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if (!entity.hasNonDefaultLowerBounds())
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return std::nullopt;
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if (auto varIface = entity.getIfVariableInterface()) {
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llvm::SmallVector<mlir::Value> lbounds = getExplicitLbounds(varIface);
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if (!lbounds.empty())
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return lbounds;
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}
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TODO(loc, "get non default lower bounds without FortranVariableInterface");
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}
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hlfir::Entity hlfir::getElementAt(mlir::Location loc,
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fir::FirOpBuilder &builder, Entity entity,
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mlir::ValueRange oneBasedIndices) {
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if (entity.isScalar())
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return entity;
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llvm::SmallVector<mlir::Value> lenParams;
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genLengthParameters(loc, builder, entity, lenParams);
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if (entity.getType().isa<hlfir::ExprType>())
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return hlfir::Entity{builder.create<hlfir::ApplyOp>(
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loc, entity, oneBasedIndices, lenParams)};
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// Build hlfir.designate. The lower bounds may need to be added to
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// the oneBasedIndices since hlfir.designate expect indices
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// based on the array operand lower bounds.
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mlir::Type resultType = hlfir::getVariableElementType(entity);
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hlfir::DesignateOp designate;
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if (auto lbounds = getNonDefaultLowerBounds(loc, builder, entity)) {
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llvm::SmallVector<mlir::Value> indices;
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mlir::Type idxTy = builder.getIndexType();
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mlir::Value one = builder.createIntegerConstant(loc, idxTy, 1);
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for (auto [oneBased, lb] : llvm::zip(oneBasedIndices, *lbounds)) {
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auto lbIdx = builder.createConvert(loc, idxTy, lb);
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auto oneBasedIdx = builder.createConvert(loc, idxTy, oneBased);
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auto shift = builder.create<mlir::arith::SubIOp>(loc, lbIdx, one);
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mlir::Value index =
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builder.create<mlir::arith::AddIOp>(loc, oneBasedIdx, shift);
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indices.push_back(index);
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}
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designate = builder.create<hlfir::DesignateOp>(loc, resultType, entity,
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indices, lenParams);
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} else {
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designate = builder.create<hlfir::DesignateOp>(loc, resultType, entity,
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oneBasedIndices, lenParams);
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}
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return mlir::cast<fir::FortranVariableOpInterface>(designate.getOperation());
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}
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static mlir::Value genUBound(mlir::Location loc, fir::FirOpBuilder &builder,
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mlir::Value lb, mlir::Value extent,
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mlir::Value one) {
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if (auto constantLb = fir::getIntIfConstant(lb))
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if (*constantLb == 1)
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return extent;
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extent = builder.createConvert(loc, one.getType(), extent);
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lb = builder.createConvert(loc, one.getType(), lb);
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auto add = builder.create<mlir::arith::AddIOp>(loc, lb, extent);
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return builder.create<mlir::arith::SubIOp>(loc, add, one);
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}
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llvm::SmallVector<std::pair<mlir::Value, mlir::Value>>
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hlfir::genBounds(mlir::Location loc, fir::FirOpBuilder &builder,
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Entity entity) {
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if (entity.getType().isa<hlfir::ExprType>())
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TODO(loc, "bounds of expressions in hlfir");
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auto [exv, cleanup] = translateToExtendedValue(loc, builder, entity);
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assert(!cleanup && "translation of entity should not yield cleanup");
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if (const auto *mutableBox = exv.getBoxOf<fir::MutableBoxValue>())
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exv = fir::factory::genMutableBoxRead(builder, loc, *mutableBox);
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mlir::Type idxTy = builder.getIndexType();
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mlir::Value one = builder.createIntegerConstant(loc, idxTy, 1);
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llvm::SmallVector<std::pair<mlir::Value, mlir::Value>> result;
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for (unsigned dim = 0; dim < exv.rank(); ++dim) {
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mlir::Value extent = fir::factory::readExtent(builder, loc, exv, dim);
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mlir::Value lb = fir::factory::readLowerBound(builder, loc, exv, dim, one);
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mlir::Value ub = genUBound(loc, builder, lb, extent, one);
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result.push_back({lb, ub});
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}
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return result;
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}
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static hlfir::Entity followEntitySource(hlfir::Entity entity) {
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while (true) {
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if (auto reassoc = entity.getDefiningOp<hlfir::NoReassocOp>()) {
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entity = hlfir::Entity{reassoc.getVal()};
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continue;
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}
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if (auto asExpr = entity.getDefiningOp<hlfir::AsExprOp>()) {
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entity = hlfir::Entity{asExpr.getVar()};
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continue;
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}
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break;
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}
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return entity;
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}
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mlir::Value hlfir::genShape(mlir::Location loc, fir::FirOpBuilder &builder,
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hlfir::Entity entity) {
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assert(entity.isArray() && "entity must be an array");
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if (entity.isMutableBox())
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entity = hlfir::derefPointersAndAllocatables(loc, builder, entity);
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else
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entity = followEntitySource(entity);
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if (entity.getType().isa<hlfir::ExprType>()) {
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if (auto elemental = entity.getDefiningOp<hlfir::ElementalOp>())
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return elemental.getShape();
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TODO(loc, "get shape from HLFIR expr without producer holding the shape");
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}
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// Entity is an array variable.
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if (auto varIface = entity.getIfVariableInterface()) {
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if (auto shape = varIface.getShape()) {
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if (shape.getType().isa<fir::ShapeType>())
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return shape;
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if (shape.getType().isa<fir::ShapeShiftType>())
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if (auto s = shape.getDefiningOp<fir::ShapeShiftOp>())
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return builder.create<fir::ShapeOp>(loc, s.getExtents());
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}
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}
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// There is no shape lying around for this entity: build one using
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// the type shape information, and/or the fir.box/fir.class shape
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// information if any extents are not static.
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fir::SequenceType seqTy =
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hlfir::getFortranElementOrSequenceType(entity.getType())
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.cast<fir::SequenceType>();
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llvm::SmallVector<mlir::Value> extents;
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mlir::Type idxTy = builder.getIndexType();
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for (auto typeExtent : seqTy.getShape())
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if (typeExtent != fir::SequenceType::getUnknownExtent()) {
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extents.push_back(builder.createIntegerConstant(loc, idxTy, typeExtent));
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} else {
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assert(entity.getType().isa<fir::BaseBoxType>() &&
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"array variable with dynamic extent must be boxes");
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mlir::Value dim =
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builder.createIntegerConstant(loc, idxTy, extents.size());
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auto dimInfo =
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builder.create<fir::BoxDimsOp>(loc, idxTy, idxTy, idxTy, entity, dim);
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extents.push_back(dimInfo.getExtent());
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}
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return builder.create<fir::ShapeOp>(loc, extents);
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}
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llvm::SmallVector<mlir::Value>
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hlfir::getIndexExtents(mlir::Location loc, fir::FirOpBuilder &builder,
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mlir::Value shape) {
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llvm::SmallVector<mlir::Value> extents;
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if (auto s = shape.getDefiningOp<fir::ShapeOp>()) {
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auto e = s.getExtents();
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extents.insert(extents.end(), e.begin(), e.end());
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} else if (auto s = shape.getDefiningOp<fir::ShapeShiftOp>()) {
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auto e = s.getExtents();
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extents.insert(extents.end(), e.begin(), e.end());
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} else {
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// TODO: add fir.get_extent ops on fir.shape<> ops.
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TODO(loc, "get extents from fir.shape without fir::ShapeOp parent op");
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}
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mlir::Type indexType = builder.getIndexType();
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for (auto &extent : extents)
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extent = builder.createConvert(loc, indexType, extent);
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return extents;
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}
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|
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void hlfir::genLengthParameters(mlir::Location loc, fir::FirOpBuilder &builder,
|
|
Entity entity,
|
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llvm::SmallVectorImpl<mlir::Value> &result) {
|
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if (!entity.hasLengthParameters())
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return;
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if (entity.getType().isa<hlfir::ExprType>()) {
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mlir::Value expr = entity;
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if (auto reassoc = expr.getDefiningOp<hlfir::NoReassocOp>())
|
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expr = reassoc.getVal();
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// Going through fir::ExtendedValue would create a temp,
|
|
// which is not desired for an inquiry.
|
|
// TODO: make this an interface when adding further character producing ops.
|
|
if (auto concat = expr.getDefiningOp<hlfir::ConcatOp>()) {
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|
result.push_back(concat.getLength());
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return;
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} else if (auto concat = expr.getDefiningOp<hlfir::SetLengthOp>()) {
|
|
result.push_back(concat.getLength());
|
|
return;
|
|
} else if (auto asExpr = expr.getDefiningOp<hlfir::AsExprOp>()) {
|
|
hlfir::genLengthParameters(loc, builder, hlfir::Entity{asExpr.getVar()},
|
|
result);
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return;
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} else if (auto elemental = expr.getDefiningOp<hlfir::ElementalOp>()) {
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result.append(elemental.getTypeparams().begin(),
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|
elemental.getTypeparams().end());
|
|
return;
|
|
} else if (auto apply = expr.getDefiningOp<hlfir::ApplyOp>()) {
|
|
result.append(apply.getTypeparams().begin(), apply.getTypeparams().end());
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|
}
|
|
TODO(loc, "inquire type parameters of hlfir.expr");
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|
}
|
|
|
|
if (entity.isCharacter()) {
|
|
auto [exv, cleanup] = translateToExtendedValue(loc, builder, entity);
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|
assert(!cleanup && "translation of entity should not yield cleanup");
|
|
result.push_back(fir::factory::readCharLen(builder, loc, exv));
|
|
return;
|
|
}
|
|
TODO(loc, "inquire PDTs length parameters in HLFIR");
|
|
}
|
|
|
|
mlir::Value hlfir::genCharLength(mlir::Location loc, fir::FirOpBuilder &builder,
|
|
hlfir::Entity entity) {
|
|
llvm::SmallVector<mlir::Value, 1> lenParams;
|
|
genLengthParameters(loc, builder, entity, lenParams);
|
|
assert(lenParams.size() == 1 && "characters must have one length parameters");
|
|
return lenParams[0];
|
|
}
|
|
|
|
std::pair<mlir::Value, mlir::Value> hlfir::genVariableFirBaseShapeAndParams(
|
|
mlir::Location loc, fir::FirOpBuilder &builder, Entity entity,
|
|
llvm::SmallVectorImpl<mlir::Value> &typeParams) {
|
|
auto [exv, cleanup] = translateToExtendedValue(loc, builder, entity);
|
|
assert(!cleanup && "variable to Exv should not produce cleanup");
|
|
if (entity.hasLengthParameters()) {
|
|
auto params = fir::getTypeParams(exv);
|
|
typeParams.append(params.begin(), params.end());
|
|
}
|
|
if (entity.isScalar())
|
|
return {fir::getBase(exv), mlir::Value{}};
|
|
if (auto variableInterface = entity.getIfVariableInterface())
|
|
return {fir::getBase(exv), variableInterface.getShape()};
|
|
return {fir::getBase(exv), builder.createShape(loc, exv)};
|
|
}
|
|
|
|
hlfir::Entity hlfir::derefPointersAndAllocatables(mlir::Location loc,
|
|
fir::FirOpBuilder &builder,
|
|
Entity entity) {
|
|
if (entity.isMutableBox())
|
|
return hlfir::Entity{builder.create<fir::LoadOp>(loc, entity).getResult()};
|
|
return entity;
|
|
}
|
|
|
|
mlir::Type hlfir::getVariableElementType(hlfir::Entity variable) {
|
|
assert(variable.isVariable() && "entity must be a variable");
|
|
if (variable.isScalar())
|
|
return variable.getType();
|
|
mlir::Type eleTy = variable.getFortranElementType();
|
|
if (variable.isPolymorphic())
|
|
return fir::ClassType::get(eleTy);
|
|
if (auto charType = eleTy.dyn_cast<fir::CharacterType>()) {
|
|
if (charType.hasDynamicLen())
|
|
return fir::BoxCharType::get(charType.getContext(), charType.getFKind());
|
|
} else if (fir::isRecordWithTypeParameters(eleTy)) {
|
|
return fir::BoxType::get(eleTy);
|
|
}
|
|
return fir::ReferenceType::get(eleTy);
|
|
}
|
|
|
|
static hlfir::ExprType getArrayExprType(mlir::Type elementType,
|
|
mlir::Value shape, bool isPolymorphic) {
|
|
unsigned rank = shape.getType().cast<fir::ShapeType>().getRank();
|
|
hlfir::ExprType::Shape typeShape(rank, hlfir::ExprType::getUnknownExtent());
|
|
if (auto shapeOp = shape.getDefiningOp<fir::ShapeOp>())
|
|
for (auto extent : llvm::enumerate(shapeOp.getExtents()))
|
|
if (auto cstExtent = fir::getIntIfConstant(extent.value()))
|
|
typeShape[extent.index()] = *cstExtent;
|
|
return hlfir::ExprType::get(elementType.getContext(), typeShape, elementType,
|
|
isPolymorphic);
|
|
}
|
|
|
|
hlfir::ElementalOp
|
|
hlfir::genElementalOp(mlir::Location loc, fir::FirOpBuilder &builder,
|
|
mlir::Type elementType, mlir::Value shape,
|
|
mlir::ValueRange typeParams,
|
|
const ElementalKernelGenerator &genKernel) {
|
|
mlir::Type exprType = getArrayExprType(elementType, shape, false);
|
|
auto elementalOp =
|
|
builder.create<hlfir::ElementalOp>(loc, exprType, shape, typeParams);
|
|
auto insertPt = builder.saveInsertionPoint();
|
|
builder.setInsertionPointToStart(elementalOp.getBody());
|
|
mlir::Value elementResult = genKernel(loc, builder, elementalOp.getIndices());
|
|
// Numerical and logical scalars may be lowered to another type than the
|
|
// Fortran expression type (e.g i1 instead of fir.logical). Array expression
|
|
// values are typed according to their Fortran type. Insert a cast if needed
|
|
// here.
|
|
if (fir::isa_trivial(elementResult.getType()))
|
|
elementResult = builder.createConvert(loc, elementType, elementResult);
|
|
builder.create<hlfir::YieldElementOp>(loc, elementResult);
|
|
builder.restoreInsertionPoint(insertPt);
|
|
return elementalOp;
|
|
}
|
|
|
|
hlfir::YieldElementOp
|
|
hlfir::inlineElementalOp(mlir::Location loc, fir::FirOpBuilder &builder,
|
|
hlfir::ElementalOp elemental,
|
|
mlir::ValueRange oneBasedIndices) {
|
|
// hlfir.elemental region is a SizedRegion<1>.
|
|
assert(elemental.getRegion().hasOneBlock() &&
|
|
"expect elemental region to have one block");
|
|
mlir::BlockAndValueMapping mapper;
|
|
mapper.map(elemental.getIndices(), oneBasedIndices);
|
|
mlir::Operation *newOp;
|
|
for (auto &op : elemental.getRegion().back().getOperations())
|
|
newOp = builder.clone(op, mapper);
|
|
auto yield = mlir::dyn_cast_or_null<hlfir::YieldElementOp>(newOp);
|
|
assert(yield && "last ElementalOp operation must be am hlfir.yield_element");
|
|
return yield;
|
|
}
|
|
|
|
std::pair<fir::DoLoopOp, llvm::SmallVector<mlir::Value>>
|
|
hlfir::genLoopNest(mlir::Location loc, fir::FirOpBuilder &builder,
|
|
mlir::ValueRange extents) {
|
|
assert(!extents.empty() && "must have at least one extent");
|
|
auto insPt = builder.saveInsertionPoint();
|
|
llvm::SmallVector<mlir::Value> indices(extents.size());
|
|
// Build loop nest from column to row.
|
|
auto one = builder.create<mlir::arith::ConstantIndexOp>(loc, 1);
|
|
mlir::Type indexType = builder.getIndexType();
|
|
unsigned dim = extents.size() - 1;
|
|
fir::DoLoopOp innerLoop;
|
|
for (auto extent : llvm::reverse(extents)) {
|
|
auto ub = builder.createConvert(loc, indexType, extent);
|
|
innerLoop = builder.create<fir::DoLoopOp>(loc, one, ub, one);
|
|
builder.setInsertionPointToStart(innerLoop.getBody());
|
|
// Reverse the indices so they are in column-major order.
|
|
indices[dim--] = innerLoop.getInductionVar();
|
|
}
|
|
builder.restoreInsertionPoint(insPt);
|
|
return {innerLoop, indices};
|
|
}
|