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//===-- ComponentPath.cpp -------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/Lower/ComponentPath.h"
static std::function<
Fortran::lower::IterationSpace(const Fortran::lower::IterationSpace &)>
getIdentityFunc() {
return [](const Fortran::lower::IterationSpace &s) { return s; };
}
static std::function<
Fortran::lower::IterationSpace(const Fortran::lower::IterationSpace &)>
getNullaryFunc() {
return [](const Fortran::lower::IterationSpace &s) {
Fortran::lower::IterationSpace newIters(s);
newIters.clearIndices();
return newIters;
};
}
void Fortran::lower::ComponentPath::clear() {
reversePath.clear();
substring = nullptr;
applied = false;
prefixComponents.clear();
trips.clear();
suffixComponents.clear();
pc = getIdentityFunc();
}
bool Fortran::lower::isRankedArrayAccess(const Fortran::evaluate::ArrayRef &x) {
for (const Fortran::evaluate::Subscript &sub : x.subscript()) {
if (std::visit(
Fortran::common::visitors{
[&](const Fortran::evaluate::Triplet &) { return true; },
[&](const Fortran::evaluate::IndirectSubscriptIntegerExpr &e) {
return e.value().Rank() > 0;
}},
sub.u))
return true;
}
return false;
}
void Fortran::lower::ComponentPath::resetPC() { pc = getIdentityFunc(); }
void Fortran::lower::ComponentPath::setPC(bool isImplicit) {
pc = isImplicit ? getIdentityFunc() : getNullaryFunc();
resetExtendCoorRef();
}
Fortran::lower::ComponentPath::ExtendRefFunc
Fortran::lower::ComponentPath::getExtendCoorRef() const {
return hasExtendCoorRef() ? *extendCoorRef : [](mlir::Value v) { return v; };
}
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