1e462fafdf
This patch re-factors the driver code in LLVM Flang (frontend + compiler) to use the MLIR style. For more context, please see: https://discourse.llvm.org/t/rfc-coding-style-in-the-driver/ Most changes here are rather self-explanatory. Accessors are renamed to be more consistent with the rest of LLVM (e.g. allSource --> getAllSources). Additionally, MLIR clang-tidy files are added in the affected directories. clang-tidy and clang-format files were copied from MLIR. Small additional changes are made to silence clang-tidy/clang-format warnings. [1] https://mlir.llvm.org/getting_started/DeveloperGuide/ Differential Revision: https://reviews.llvm.org/D125007
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
//===-- fc1_main.cpp - Flang FC1 Compiler Frontend ------------------------===//
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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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// This is the entry point to the flang -fc1 functionality, which implements the
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// core compiler functionality along with a number of additional tools for
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// demonstration and testing purposes.
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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/Frontend/CompilerInstance.h"
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#include "flang/Frontend/CompilerInvocation.h"
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#include "flang/Frontend/TextDiagnosticBuffer.h"
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#include "flang/FrontendTool/Utils.h"
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#include "clang/Driver/DriverDiagnostic.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/OptTable.h"
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#include "llvm/Support/TargetSelect.h"
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#include <cstdio>
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using namespace Fortran::frontend;
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int fc1_main(llvm::ArrayRef<const char *> argv, const char *argv0) {
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// Create CompilerInstance
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std::unique_ptr<CompilerInstance> flang(new CompilerInstance());
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// Create DiagnosticsEngine for the frontend driver
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flang->createDiagnostics();
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if (!flang->hasDiagnostics())
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return 1;
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// We will buffer diagnostics from argument parsing so that we can output
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// them using a well formed diagnostic object.
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TextDiagnosticBuffer *diagsBuffer = new TextDiagnosticBuffer;
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// Create CompilerInvocation - use a dedicated instance of DiagnosticsEngine
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// for parsing the arguments
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llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> diagID(
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new clang::DiagnosticIDs());
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llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> diagOpts =
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new clang::DiagnosticOptions();
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clang::DiagnosticsEngine diags(diagID, &*diagOpts, diagsBuffer);
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bool success =
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CompilerInvocation::createFromArgs(flang->getInvocation(), argv, diags);
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// Initialize targets first, so that --version shows registered targets.
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llvm::InitializeAllTargets();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllAsmPrinters();
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diagsBuffer->flushDiagnostics(flang->getDiagnostics());
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if (!success)
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return 1;
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// Execute the frontend actions.
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success = executeCompilerInvocation(flang.get());
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// Delete output files to free Compiler Instance
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flang->clearOutputFiles(/*EraseFiles=*/false);
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return !success;
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}
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