1 | //===-- ComponentPath.cpp -------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "flang/Lower/ComponentPath.h" |
10 | |
11 | static std::function< |
12 | Fortran::lower::IterationSpace(const Fortran::lower::IterationSpace &)> |
13 | getIdentityFunc() { |
14 | return [](const Fortran::lower::IterationSpace &s) { return s; }; |
15 | } |
16 | |
17 | static std::function< |
18 | Fortran::lower::IterationSpace(const Fortran::lower::IterationSpace &)> |
19 | getNullaryFunc() { |
20 | return [](const Fortran::lower::IterationSpace &s) { |
21 | Fortran::lower::IterationSpace newIters(s); |
22 | newIters.clearIndices(); |
23 | return newIters; |
24 | }; |
25 | } |
26 | |
27 | void Fortran::lower::ComponentPath::clear() { |
28 | reversePath.clear(); |
29 | substring = nullptr; |
30 | applied = false; |
31 | prefixComponents.clear(); |
32 | trips.clear(); |
33 | suffixComponents.clear(); |
34 | pc = getIdentityFunc(); |
35 | } |
36 | |
37 | bool Fortran::lower::isRankedArrayAccess(const Fortran::evaluate::ArrayRef &x) { |
38 | for (const Fortran::evaluate::Subscript &sub : x.subscript()) { |
39 | if (std::visit( |
40 | Fortran::common::visitors{ |
41 | [&](const Fortran::evaluate::Triplet &) { return true; }, |
42 | [&](const Fortran::evaluate::IndirectSubscriptIntegerExpr &e) { |
43 | return e.value().Rank() > 0; |
44 | }}, |
45 | sub.u)) |
46 | return true; |
47 | } |
48 | return false; |
49 | } |
50 | |
51 | void Fortran::lower::ComponentPath::resetPC() { pc = getIdentityFunc(); } |
52 | |
53 | void Fortran::lower::ComponentPath::setPC(bool isImplicit) { |
54 | pc = isImplicit ? getIdentityFunc() : getNullaryFunc(); |
55 | resetExtendCoorRef(); |
56 | } |
57 | |
58 | Fortran::lower::ComponentPath::ExtendRefFunc |
59 | Fortran::lower::ComponentPath::getExtendCoorRef() const { |
60 | return hasExtendCoorRef() ? *extendCoorRef : [](mlir::Value v) { return v; }; |
61 | } |
62 | |