ab77db03ce
….cpp This is intended to reduce the memory usage while compiling flang sources. There were over 7500 instantiations of function templates defined in the Utils.h file. Most of them were not referenced anywhere outside, except for specialized implementations of getHashValue and isEqual in IterationSpace.cpp. These function were also moved to Utils.cpp.
606 lines
25 KiB
C++
606 lines
25 KiB
C++
//===-- Lower/Support/Utils.cpp -- utilities --------------------*- C++ -*-===//
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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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// Coding style: https://mlir.llvm.org/getting_started/DeveloperGuide/
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Lower/Support/Utils.h"
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#include "flang/Common/indirection.h"
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#include "flang/Lower/IterationSpace.h"
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#include "flang/Semantics/tools.h"
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#include <cstdint>
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#include <optional>
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#include <type_traits>
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namespace Fortran::lower {
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// Fortran::evaluate::Expr are functional values organized like an AST. A
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// Fortran::evaluate::Expr is meant to be moved and cloned. Using the front end
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// tools can often cause copies and extra wrapper classes to be added to any
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// Fortran::evaluate::Expr. These values should not be assumed or relied upon to
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// have an *object* identity. They are deeply recursive, irregular structures
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// built from a large number of classes which do not use inheritance and
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// necessitate a large volume of boilerplate code as a result.
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//
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// Contrastingly, LLVM data structures make ubiquitous assumptions about an
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// object's identity via pointers to the object. An object's location in memory
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// is thus very often an identifying relation.
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// This class defines a hash computation of a Fortran::evaluate::Expr tree value
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// so it can be used with llvm::DenseMap. The Fortran::evaluate::Expr need not
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// have the same address.
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class HashEvaluateExpr {
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public:
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// A Se::Symbol is the only part of an Fortran::evaluate::Expr with an
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// identity property.
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static unsigned getHashValue(const Fortran::semantics::Symbol &x) {
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return static_cast<unsigned>(reinterpret_cast<std::intptr_t>(&x));
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}
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template <typename A, bool COPY>
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static unsigned getHashValue(const Fortran::common::Indirection<A, COPY> &x) {
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return getHashValue(x.value());
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}
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template <typename A>
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static unsigned getHashValue(const std::optional<A> &x) {
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if (x.has_value())
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return getHashValue(x.value());
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return 0u;
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}
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static unsigned getHashValue(const Fortran::evaluate::Subscript &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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static unsigned getHashValue(const Fortran::evaluate::Triplet &x) {
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return getHashValue(x.lower()) - getHashValue(x.upper()) * 5u -
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getHashValue(x.stride()) * 11u;
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}
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static unsigned getHashValue(const Fortran::evaluate::Component &x) {
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return getHashValue(x.base()) * 83u - getHashValue(x.GetLastSymbol());
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}
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static unsigned getHashValue(const Fortran::evaluate::ArrayRef &x) {
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unsigned subs = 1u;
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for (const Fortran::evaluate::Subscript &v : x.subscript())
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subs -= getHashValue(v);
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return getHashValue(x.base()) * 89u - subs;
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}
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static unsigned getHashValue(const Fortran::evaluate::CoarrayRef &x) {
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unsigned subs = 1u;
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for (const Fortran::evaluate::Subscript &v : x.subscript())
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subs -= getHashValue(v);
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unsigned cosubs = 3u;
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for (const Fortran::evaluate::Expr<Fortran::evaluate::SubscriptInteger> &v :
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x.cosubscript())
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cosubs -= getHashValue(v);
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unsigned syms = 7u;
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for (const Fortran::evaluate::SymbolRef &v : x.base())
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syms += getHashValue(v);
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return syms * 97u - subs - cosubs + getHashValue(x.stat()) + 257u +
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getHashValue(x.team());
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}
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static unsigned getHashValue(const Fortran::evaluate::NamedEntity &x) {
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if (x.IsSymbol())
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return getHashValue(x.GetFirstSymbol()) * 11u;
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return getHashValue(x.GetComponent()) * 13u;
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}
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static unsigned getHashValue(const Fortran::evaluate::DataRef &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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static unsigned getHashValue(const Fortran::evaluate::ComplexPart &x) {
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return getHashValue(x.complex()) - static_cast<unsigned>(x.part());
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}
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template <Fortran::common::TypeCategory TC1, int KIND,
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Fortran::common::TypeCategory TC2>
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static unsigned getHashValue(
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const Fortran::evaluate::Convert<Fortran::evaluate::Type<TC1, KIND>, TC2>
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&x) {
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return getHashValue(x.left()) - (static_cast<unsigned>(TC1) + 2u) -
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(static_cast<unsigned>(KIND) + 5u);
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}
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template <int KIND>
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static unsigned
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getHashValue(const Fortran::evaluate::ComplexComponent<KIND> &x) {
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return getHashValue(x.left()) -
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(static_cast<unsigned>(x.isImaginaryPart) + 1u) * 3u;
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}
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template <typename T>
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static unsigned getHashValue(const Fortran::evaluate::Parentheses<T> &x) {
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return getHashValue(x.left()) * 17u;
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Negate<Fortran::evaluate::Type<TC, KIND>> &x) {
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return getHashValue(x.left()) - (static_cast<unsigned>(TC) + 5u) -
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(static_cast<unsigned>(KIND) + 7u);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Add<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) + getHashValue(x.right())) * 23u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Subtract<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 19u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Multiply<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) + getHashValue(x.right())) * 29u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Divide<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 31u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Power<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 37u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Extremum<Fortran::evaluate::Type<TC, KIND>> &x) {
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return (getHashValue(x.left()) + getHashValue(x.right())) * 41u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND) +
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static_cast<unsigned>(x.ordering) * 7u;
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::RealToIntPower<Fortran::evaluate::Type<TC, KIND>>
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&x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 43u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND);
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}
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template <int KIND>
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static unsigned
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getHashValue(const Fortran::evaluate::ComplexConstructor<KIND> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 47u +
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static_cast<unsigned>(KIND);
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}
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template <int KIND>
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static unsigned getHashValue(const Fortran::evaluate::Concat<KIND> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 53u +
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static_cast<unsigned>(KIND);
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}
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template <int KIND>
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static unsigned getHashValue(const Fortran::evaluate::SetLength<KIND> &x) {
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return (getHashValue(x.left()) - getHashValue(x.right())) * 59u +
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static_cast<unsigned>(KIND);
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}
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static unsigned getHashValue(const Fortran::semantics::SymbolRef &sym) {
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return getHashValue(sym.get());
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}
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static unsigned getHashValue(const Fortran::evaluate::Substring &x) {
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return 61u *
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Fortran::common::visit(
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[&](const auto &p) { return getHashValue(p); }, x.parent()) -
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getHashValue(x.lower()) - (getHashValue(x.lower()) + 1u);
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}
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static unsigned
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getHashValue(const Fortran::evaluate::StaticDataObject::Pointer &x) {
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return llvm::hash_value(x->name());
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}
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static unsigned getHashValue(const Fortran::evaluate::SpecificIntrinsic &x) {
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return llvm::hash_value(x.name);
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}
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template <typename A>
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static unsigned getHashValue(const Fortran::evaluate::Constant<A> &x) {
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// FIXME: Should hash the content.
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return 103u;
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}
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static unsigned getHashValue(const Fortran::evaluate::ActualArgument &x) {
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if (const Fortran::evaluate::Symbol *sym = x.GetAssumedTypeDummy())
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return getHashValue(*sym);
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return getHashValue(*x.UnwrapExpr());
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}
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static unsigned
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getHashValue(const Fortran::evaluate::ProcedureDesignator &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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static unsigned getHashValue(const Fortran::evaluate::ProcedureRef &x) {
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unsigned args = 13u;
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for (const std::optional<Fortran::evaluate::ActualArgument> &v :
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x.arguments())
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args -= getHashValue(v);
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return getHashValue(x.proc()) * 101u - args;
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}
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template <typename A>
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static unsigned
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getHashValue(const Fortran::evaluate::ArrayConstructor<A> &x) {
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// FIXME: hash the contents.
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return 127u;
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}
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static unsigned getHashValue(const Fortran::evaluate::ImpliedDoIndex &x) {
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return llvm::hash_value(toStringRef(x.name).str()) * 131u;
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}
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static unsigned getHashValue(const Fortran::evaluate::TypeParamInquiry &x) {
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return getHashValue(x.base()) * 137u - getHashValue(x.parameter()) * 3u;
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}
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static unsigned getHashValue(const Fortran::evaluate::DescriptorInquiry &x) {
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return getHashValue(x.base()) * 139u -
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static_cast<unsigned>(x.field()) * 13u +
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static_cast<unsigned>(x.dimension());
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}
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static unsigned
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getHashValue(const Fortran::evaluate::StructureConstructor &x) {
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// FIXME: hash the contents.
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return 149u;
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}
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template <int KIND>
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static unsigned getHashValue(const Fortran::evaluate::Not<KIND> &x) {
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return getHashValue(x.left()) * 61u + static_cast<unsigned>(KIND);
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}
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template <int KIND>
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static unsigned
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getHashValue(const Fortran::evaluate::LogicalOperation<KIND> &x) {
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unsigned result = getHashValue(x.left()) + getHashValue(x.right());
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return result * 67u + static_cast<unsigned>(x.logicalOperator) * 5u;
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}
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template <Fortran::common::TypeCategory TC, int KIND>
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static unsigned getHashValue(
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const Fortran::evaluate::Relational<Fortran::evaluate::Type<TC, KIND>>
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&x) {
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return (getHashValue(x.left()) + getHashValue(x.right())) * 71u +
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static_cast<unsigned>(TC) + static_cast<unsigned>(KIND) +
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static_cast<unsigned>(x.opr) * 11u;
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}
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template <typename A>
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static unsigned getHashValue(const Fortran::evaluate::Expr<A> &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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static unsigned getHashValue(
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const Fortran::evaluate::Relational<Fortran::evaluate::SomeType> &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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template <typename A>
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static unsigned getHashValue(const Fortran::evaluate::Designator<A> &x) {
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return Fortran::common::visit(
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[&](const auto &v) { return getHashValue(v); }, x.u);
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}
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template <int BITS>
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static unsigned
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getHashValue(const Fortran::evaluate::value::Integer<BITS> &x) {
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return static_cast<unsigned>(x.ToSInt());
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}
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static unsigned getHashValue(const Fortran::evaluate::NullPointer &x) {
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return ~179u;
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}
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};
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// Define the is equals test for using Fortran::evaluate::Expr values with
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// llvm::DenseMap.
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class IsEqualEvaluateExpr {
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public:
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// A Se::Symbol is the only part of an Fortran::evaluate::Expr with an
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// identity property.
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static bool isEqual(const Fortran::semantics::Symbol &x,
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const Fortran::semantics::Symbol &y) {
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return isEqual(&x, &y);
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}
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static bool isEqual(const Fortran::semantics::Symbol *x,
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const Fortran::semantics::Symbol *y) {
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return x == y;
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}
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template <typename A, bool COPY>
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static bool isEqual(const Fortran::common::Indirection<A, COPY> &x,
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const Fortran::common::Indirection<A, COPY> &y) {
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return isEqual(x.value(), y.value());
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}
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template <typename A>
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static bool isEqual(const std::optional<A> &x, const std::optional<A> &y) {
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if (x.has_value() && y.has_value())
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return isEqual(x.value(), y.value());
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return !x.has_value() && !y.has_value();
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}
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template <typename A>
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static bool isEqual(const std::vector<A> &x, const std::vector<A> &y) {
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if (x.size() != y.size())
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return false;
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const std::size_t size = x.size();
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for (std::remove_const_t<decltype(size)> i = 0; i < size; ++i)
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if (!isEqual(x[i], y[i]))
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return false;
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return true;
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}
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static bool isEqual(const Fortran::evaluate::Subscript &x,
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const Fortran::evaluate::Subscript &y) {
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return Fortran::common::visit(
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[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
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}
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static bool isEqual(const Fortran::evaluate::Triplet &x,
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const Fortran::evaluate::Triplet &y) {
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return isEqual(x.lower(), y.lower()) && isEqual(x.upper(), y.upper()) &&
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isEqual(x.stride(), y.stride());
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}
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static bool isEqual(const Fortran::evaluate::Component &x,
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const Fortran::evaluate::Component &y) {
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return isEqual(x.base(), y.base()) &&
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isEqual(x.GetLastSymbol(), y.GetLastSymbol());
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}
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static bool isEqual(const Fortran::evaluate::ArrayRef &x,
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const Fortran::evaluate::ArrayRef &y) {
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return isEqual(x.base(), y.base()) && isEqual(x.subscript(), y.subscript());
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}
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static bool isEqual(const Fortran::evaluate::CoarrayRef &x,
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const Fortran::evaluate::CoarrayRef &y) {
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return isEqual(x.base(), y.base()) &&
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isEqual(x.subscript(), y.subscript()) &&
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isEqual(x.cosubscript(), y.cosubscript()) &&
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isEqual(x.stat(), y.stat()) && isEqual(x.team(), y.team());
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}
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static bool isEqual(const Fortran::evaluate::NamedEntity &x,
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const Fortran::evaluate::NamedEntity &y) {
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if (x.IsSymbol() && y.IsSymbol())
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return isEqual(x.GetFirstSymbol(), y.GetFirstSymbol());
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return !x.IsSymbol() && !y.IsSymbol() &&
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isEqual(x.GetComponent(), y.GetComponent());
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}
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static bool isEqual(const Fortran::evaluate::DataRef &x,
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const Fortran::evaluate::DataRef &y) {
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return Fortran::common::visit(
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[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
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}
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static bool isEqual(const Fortran::evaluate::ComplexPart &x,
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const Fortran::evaluate::ComplexPart &y) {
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return isEqual(x.complex(), y.complex()) && x.part() == y.part();
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}
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template <typename A, Fortran::common::TypeCategory TC2>
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static bool isEqual(const Fortran::evaluate::Convert<A, TC2> &x,
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const Fortran::evaluate::Convert<A, TC2> &y) {
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return isEqual(x.left(), y.left());
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}
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template <int KIND>
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static bool isEqual(const Fortran::evaluate::ComplexComponent<KIND> &x,
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const Fortran::evaluate::ComplexComponent<KIND> &y) {
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return isEqual(x.left(), y.left()) &&
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x.isImaginaryPart == y.isImaginaryPart;
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}
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template <typename T>
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static bool isEqual(const Fortran::evaluate::Parentheses<T> &x,
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const Fortran::evaluate::Parentheses<T> &y) {
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return isEqual(x.left(), y.left());
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Negate<A> &x,
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const Fortran::evaluate::Negate<A> &y) {
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return isEqual(x.left(), y.left());
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}
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template <typename A>
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static bool isBinaryEqual(const A &x, const A &y) {
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return isEqual(x.left(), y.left()) && isEqual(x.right(), y.right());
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Add<A> &x,
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const Fortran::evaluate::Add<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Subtract<A> &x,
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const Fortran::evaluate::Subtract<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Multiply<A> &x,
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const Fortran::evaluate::Multiply<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Divide<A> &x,
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const Fortran::evaluate::Divide<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Power<A> &x,
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const Fortran::evaluate::Power<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::Extremum<A> &x,
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const Fortran::evaluate::Extremum<A> &y) {
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return isBinaryEqual(x, y);
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}
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template <typename A>
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static bool isEqual(const Fortran::evaluate::RealToIntPower<A> &x,
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const Fortran::evaluate::RealToIntPower<A> &y) {
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return isBinaryEqual(x, y);
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|
}
|
|
template <int KIND>
|
|
static bool isEqual(const Fortran::evaluate::ComplexConstructor<KIND> &x,
|
|
const Fortran::evaluate::ComplexConstructor<KIND> &y) {
|
|
return isBinaryEqual(x, y);
|
|
}
|
|
template <int KIND>
|
|
static bool isEqual(const Fortran::evaluate::Concat<KIND> &x,
|
|
const Fortran::evaluate::Concat<KIND> &y) {
|
|
return isBinaryEqual(x, y);
|
|
}
|
|
template <int KIND>
|
|
static bool isEqual(const Fortran::evaluate::SetLength<KIND> &x,
|
|
const Fortran::evaluate::SetLength<KIND> &y) {
|
|
return isBinaryEqual(x, y);
|
|
}
|
|
static bool isEqual(const Fortran::semantics::SymbolRef &x,
|
|
const Fortran::semantics::SymbolRef &y) {
|
|
return isEqual(x.get(), y.get());
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::Substring &x,
|
|
const Fortran::evaluate::Substring &y) {
|
|
return Fortran::common::visit(
|
|
[&](const auto &p, const auto &q) { return isEqual(p, q); },
|
|
x.parent(), y.parent()) &&
|
|
isEqual(x.lower(), y.lower()) && isEqual(x.upper(), y.upper());
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::StaticDataObject::Pointer &x,
|
|
const Fortran::evaluate::StaticDataObject::Pointer &y) {
|
|
return x->name() == y->name();
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::SpecificIntrinsic &x,
|
|
const Fortran::evaluate::SpecificIntrinsic &y) {
|
|
return x.name == y.name;
|
|
}
|
|
template <typename A>
|
|
static bool isEqual(const Fortran::evaluate::Constant<A> &x,
|
|
const Fortran::evaluate::Constant<A> &y) {
|
|
return x == y;
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::ActualArgument &x,
|
|
const Fortran::evaluate::ActualArgument &y) {
|
|
if (const Fortran::evaluate::Symbol *xs = x.GetAssumedTypeDummy()) {
|
|
if (const Fortran::evaluate::Symbol *ys = y.GetAssumedTypeDummy())
|
|
return isEqual(*xs, *ys);
|
|
return false;
|
|
}
|
|
return !y.GetAssumedTypeDummy() &&
|
|
isEqual(*x.UnwrapExpr(), *y.UnwrapExpr());
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::ProcedureDesignator &x,
|
|
const Fortran::evaluate::ProcedureDesignator &y) {
|
|
return Fortran::common::visit(
|
|
[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::ProcedureRef &x,
|
|
const Fortran::evaluate::ProcedureRef &y) {
|
|
return isEqual(x.proc(), y.proc()) && isEqual(x.arguments(), y.arguments());
|
|
}
|
|
template <typename A>
|
|
static bool isEqual(const Fortran::evaluate::ArrayConstructor<A> &x,
|
|
const Fortran::evaluate::ArrayConstructor<A> &y) {
|
|
llvm::report_fatal_error("not implemented");
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::ImpliedDoIndex &x,
|
|
const Fortran::evaluate::ImpliedDoIndex &y) {
|
|
return toStringRef(x.name) == toStringRef(y.name);
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::TypeParamInquiry &x,
|
|
const Fortran::evaluate::TypeParamInquiry &y) {
|
|
return isEqual(x.base(), y.base()) && isEqual(x.parameter(), y.parameter());
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::DescriptorInquiry &x,
|
|
const Fortran::evaluate::DescriptorInquiry &y) {
|
|
return isEqual(x.base(), y.base()) && x.field() == y.field() &&
|
|
x.dimension() == y.dimension();
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::StructureConstructor &x,
|
|
const Fortran::evaluate::StructureConstructor &y) {
|
|
const auto &xValues = x.values();
|
|
const auto &yValues = y.values();
|
|
if (xValues.size() != yValues.size())
|
|
return false;
|
|
if (x.derivedTypeSpec() != y.derivedTypeSpec())
|
|
return false;
|
|
for (const auto &[xSymbol, xValue] : xValues) {
|
|
auto yIt = yValues.find(xSymbol);
|
|
// This should probably never happen, since the derived type
|
|
// should be the same.
|
|
if (yIt == yValues.end())
|
|
return false;
|
|
if (!isEqual(xValue, yIt->second))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
template <int KIND>
|
|
static bool isEqual(const Fortran::evaluate::Not<KIND> &x,
|
|
const Fortran::evaluate::Not<KIND> &y) {
|
|
return isEqual(x.left(), y.left());
|
|
}
|
|
template <int KIND>
|
|
static bool isEqual(const Fortran::evaluate::LogicalOperation<KIND> &x,
|
|
const Fortran::evaluate::LogicalOperation<KIND> &y) {
|
|
return isEqual(x.left(), y.left()) && isEqual(x.right(), y.right());
|
|
}
|
|
template <typename A>
|
|
static bool isEqual(const Fortran::evaluate::Relational<A> &x,
|
|
const Fortran::evaluate::Relational<A> &y) {
|
|
return isEqual(x.left(), y.left()) && isEqual(x.right(), y.right());
|
|
}
|
|
template <typename A>
|
|
static bool isEqual(const Fortran::evaluate::Expr<A> &x,
|
|
const Fortran::evaluate::Expr<A> &y) {
|
|
return Fortran::common::visit(
|
|
[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
|
|
}
|
|
static bool
|
|
isEqual(const Fortran::evaluate::Relational<Fortran::evaluate::SomeType> &x,
|
|
const Fortran::evaluate::Relational<Fortran::evaluate::SomeType> &y) {
|
|
return Fortran::common::visit(
|
|
[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
|
|
}
|
|
template <typename A>
|
|
static bool isEqual(const Fortran::evaluate::Designator<A> &x,
|
|
const Fortran::evaluate::Designator<A> &y) {
|
|
return Fortran::common::visit(
|
|
[&](const auto &v, const auto &w) { return isEqual(v, w); }, x.u, y.u);
|
|
}
|
|
template <int BITS>
|
|
static bool isEqual(const Fortran::evaluate::value::Integer<BITS> &x,
|
|
const Fortran::evaluate::value::Integer<BITS> &y) {
|
|
return x == y;
|
|
}
|
|
static bool isEqual(const Fortran::evaluate::NullPointer &x,
|
|
const Fortran::evaluate::NullPointer &y) {
|
|
return true;
|
|
}
|
|
template <typename A, typename B,
|
|
std::enable_if_t<!std::is_same_v<A, B>, bool> = true>
|
|
static bool isEqual(const A &, const B &) {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
unsigned getHashValue(const Fortran::lower::SomeExpr *x) {
|
|
return HashEvaluateExpr::getHashValue(*x);
|
|
}
|
|
|
|
unsigned getHashValue(const Fortran::lower::ExplicitIterSpace::ArrayBases &x) {
|
|
return Fortran::common::visit(
|
|
[&](const auto *p) { return HashEvaluateExpr::getHashValue(*p); }, x);
|
|
}
|
|
|
|
bool isEqual(const Fortran::lower::SomeExpr *x,
|
|
const Fortran::lower::SomeExpr *y) {
|
|
const auto *empty =
|
|
llvm::DenseMapInfo<const Fortran::lower::SomeExpr *>::getEmptyKey();
|
|
const auto *tombstone =
|
|
llvm::DenseMapInfo<const Fortran::lower::SomeExpr *>::getTombstoneKey();
|
|
if (x == empty || y == empty || x == tombstone || y == tombstone)
|
|
return x == y;
|
|
return x == y || IsEqualEvaluateExpr::isEqual(*x, *y);
|
|
}
|
|
|
|
bool isEqual(const Fortran::lower::ExplicitIterSpace::ArrayBases &x,
|
|
const Fortran::lower::ExplicitIterSpace::ArrayBases &y) {
|
|
return Fortran::common::visit(
|
|
Fortran::common::visitors{
|
|
// Fortran::semantics::Symbol * are the exception here. These pointers
|
|
// have identity; if two Symbol * values are the same (different) then
|
|
// they are the same (different) logical symbol.
|
|
[&](Fortran::lower::FrontEndSymbol p,
|
|
Fortran::lower::FrontEndSymbol q) { return p == q; },
|
|
[&](const auto *p, const auto *q) {
|
|
if constexpr (std::is_same_v<decltype(p), decltype(q)>) {
|
|
return IsEqualEvaluateExpr::isEqual(*p, *q);
|
|
} else {
|
|
// Different subtree types are never equal.
|
|
return false;
|
|
}
|
|
}},
|
|
x, y);
|
|
}
|
|
} // end namespace Fortran::lower
|