2a7bb8494e
This patch adds a new option for the new Flang driver: `-fno-analyzed-objects-for-unparse`. The semantics are similar to `-funparse-typed-exprs-to-f18-fc` from `f18`. For consistency, the latter is replaced with `-fno-analyzed-objects-for-unparse`. The new option controls the behaviour of the unparser (i.e. the action corresponding to `-fdebug-unparse`). The default behaviour is to use the analyzed objects when unparsing. The new flag can be used to turn this off, so that the original parse-tree objects are used. The analyzed objects are generated during the semantic checks [1]. This patch also updates the semantics of `-fno-analyzed-objects-for-unparse`/`-funparse-typed-exprs-to-f18-fc` in `f18`, so that this flag is always taken into account when `Unparse` is used (this way the semantics in `f18` and `flang-new` are identical). The added test file is based on example from Peter Steinfeld. [1] https://github.com/llvm/llvm-project/blob/main/flang/docs/Semantics.md Differential Revision: https://reviews.llvm.org/D103612
41 lines
1.7 KiB
C++
41 lines
1.7 KiB
C++
//===- FrontendOptions.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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#include "flang/Frontend/FrontendOptions.h"
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#include "flang/Evaluate/expression.h"
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using namespace Fortran::frontend;
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bool Fortran::frontend::isFixedFormSuffix(llvm::StringRef suffix) {
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// Note: Keep this list in-sync with flang/test/lit.cfg.py
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return suffix == "f77" || suffix == "f" || suffix == "F" || suffix == "ff" ||
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suffix == "for" || suffix == "FOR" || suffix == "fpp" || suffix == "FPP";
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}
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bool Fortran::frontend::isFreeFormSuffix(llvm::StringRef suffix) {
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// Note: Keep this list in-sync with flang/test/lit.cfg.py
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// TODO: Add Cuda Fortan files (i.e. `*.cuf` and `*.CUF`).
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return suffix == "f90" || suffix == "F90" || suffix == "ff90" ||
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suffix == "f95" || suffix == "F95" || suffix == "ff95" ||
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suffix == "f03" || suffix == "F03" || suffix == "f08" ||
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suffix == "F08" || suffix == "f18" || suffix == "F18";
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}
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bool Fortran::frontend::mustBePreprocessed(llvm::StringRef suffix) {
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return suffix == "F" || suffix == "FOR" || suffix == "fpp" ||
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suffix == "FPP" || suffix == "F90" || suffix == "F95" ||
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suffix == "F03" || suffix == "F08" || suffix == "F18";
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}
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InputKind FrontendOptions::GetInputKindForExtension(llvm::StringRef extension) {
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if (isFixedFormSuffix(extension) || isFreeFormSuffix(extension)) {
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return Language::Fortran;
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}
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return Language::Unknown;
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}
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