3338ef93b0
Rename the current -E option to "-E -Xflang -fno-reformat". Add a new Parsing::EmitPreprocessedSource() routine to convert the cooked character stream output of the prescanner back to something more closely resembling output from a traditional preprocessor; call this new routine when -E appears. The new -E output is suitable for use as fixed form Fortran source to compilation by (one hopes) any Fortran compiler. If the original top-level source file had been free form source, the output will be suitable for use as free form source as well; otherwise there may be diagnostics about missing spaces if they were indeed absent in the original fixed form source. Unless the -P option appears, #line directives are interspersed with the output (but be advised, f18 will ignore these if presented with them in a later compilation). An effort has been made to preserve original alphabetic character case and source indentation. Add -P and -fno-reformat to the new drivers. Tweak test options to avoid confusion with prior -E output; use -fno-reformat where needed, but prefer to keep -E, sometimes in concert with -P, on most, updating expected results accordingly. Differential Revision: https://reviews.llvm.org/D106727
40 lines
1.6 KiB
C++
40 lines
1.6 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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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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