75ea7aed93
Add frontend actions to support emitting assembly, bitcode, and object files when compiling with ClangIR. This change also correctly sets and propagates the target triple in the MLIR and LLVM modules, which was a necessary prerequisite for emitting assembly and object files.
287 lines
10 KiB
C++
287 lines
10 KiB
C++
//===--- ExecuteCompilerInvocation.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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//
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// This file holds ExecuteCompilerInvocation(). It is split into its own file to
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// minimize the impact of pulling in essentially everything else in Clang.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/CodeGen/CodeGenAction.h"
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#include "clang/Config/config.h"
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#include "clang/Driver/Options.h"
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#include "clang/ExtractAPI/FrontendActions.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/CompilerInvocation.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Frontend/FrontendPluginRegistry.h"
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#include "clang/Frontend/Utils.h"
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#include "clang/FrontendTool/Utils.h"
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#include "clang/Rewrite/Frontend/FrontendActions.h"
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#include "clang/StaticAnalyzer/Frontend/AnalyzerHelpFlags.h"
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#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
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#include "llvm/Option/OptTable.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/BuryPointer.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/ErrorHandling.h"
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#if CLANG_ENABLE_CIR
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#include "clang/CIR/FrontendAction/CIRGenAction.h"
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#endif
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using namespace clang;
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using namespace llvm::opt;
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namespace clang {
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static std::unique_ptr<FrontendAction>
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CreateFrontendBaseAction(CompilerInstance &CI) {
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using namespace clang::frontend;
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StringRef Action("unknown");
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(void)Action;
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unsigned UseCIR = CI.getFrontendOpts().UseClangIRPipeline;
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frontend::ActionKind Act = CI.getFrontendOpts().ProgramAction;
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bool EmitsCIR = Act == EmitCIR;
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if (!UseCIR && EmitsCIR)
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llvm::report_fatal_error("-emit-cir and only valid when using -fclangir");
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switch (CI.getFrontendOpts().ProgramAction) {
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case ASTDeclList: return std::make_unique<ASTDeclListAction>();
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case ASTDump: return std::make_unique<ASTDumpAction>();
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case ASTPrint: return std::make_unique<ASTPrintAction>();
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case ASTView: return std::make_unique<ASTViewAction>();
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case DumpCompilerOptions:
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return std::make_unique<DumpCompilerOptionsAction>();
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case DumpRawTokens: return std::make_unique<DumpRawTokensAction>();
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case DumpTokens: return std::make_unique<DumpTokensAction>();
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case EmitAssembly:
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#if CLANG_ENABLE_CIR
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if (UseCIR)
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return std::make_unique<cir::EmitAssemblyAction>();
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#endif
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return std::make_unique<EmitAssemblyAction>();
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case EmitBC:
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#if CLANG_ENABLE_CIR
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if (UseCIR)
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return std::make_unique<cir::EmitBCAction>();
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#endif
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return std::make_unique<EmitBCAction>();
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case EmitCIR:
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#if CLANG_ENABLE_CIR
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return std::make_unique<cir::EmitCIRAction>();
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#else
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llvm_unreachable("CIR suppport not built into clang");
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#endif
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case EmitHTML: return std::make_unique<HTMLPrintAction>();
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case EmitLLVM: {
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#if CLANG_ENABLE_CIR
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if (UseCIR)
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return std::make_unique<cir::EmitLLVMAction>();
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#endif
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return std::make_unique<EmitLLVMAction>();
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}
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case EmitLLVMOnly: return std::make_unique<EmitLLVMOnlyAction>();
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case EmitCodeGenOnly: return std::make_unique<EmitCodeGenOnlyAction>();
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case EmitObj:
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#if CLANG_ENABLE_CIR
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if (UseCIR)
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return std::make_unique<cir::EmitObjAction>();
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#endif
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return std::make_unique<EmitObjAction>();
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case ExtractAPI:
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return std::make_unique<ExtractAPIAction>();
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case FixIt: return std::make_unique<FixItAction>();
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case GenerateModule:
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return std::make_unique<GenerateModuleFromModuleMapAction>();
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case GenerateModuleInterface:
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return std::make_unique<GenerateModuleInterfaceAction>();
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case GenerateReducedModuleInterface:
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return std::make_unique<GenerateReducedModuleInterfaceAction>();
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case GenerateHeaderUnit:
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return std::make_unique<GenerateHeaderUnitAction>();
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case GeneratePCH: return std::make_unique<GeneratePCHAction>();
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case GenerateInterfaceStubs:
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return std::make_unique<GenerateInterfaceStubsAction>();
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case InitOnly: return std::make_unique<InitOnlyAction>();
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case ParseSyntaxOnly: return std::make_unique<SyntaxOnlyAction>();
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case ModuleFileInfo: return std::make_unique<DumpModuleInfoAction>();
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case VerifyPCH: return std::make_unique<VerifyPCHAction>();
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case TemplightDump: return std::make_unique<TemplightDumpAction>();
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case PluginAction: {
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for (const FrontendPluginRegistry::entry &Plugin :
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FrontendPluginRegistry::entries()) {
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if (Plugin.getName() == CI.getFrontendOpts().ActionName) {
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std::unique_ptr<PluginASTAction> P(Plugin.instantiate());
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if ((P->getActionType() != PluginASTAction::ReplaceAction &&
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P->getActionType() != PluginASTAction::CmdlineAfterMainAction) ||
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!P->ParseArgs(
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CI,
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CI.getFrontendOpts().PluginArgs[std::string(Plugin.getName())]))
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return nullptr;
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return std::move(P);
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}
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}
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CI.getDiagnostics().Report(diag::err_fe_invalid_plugin_name)
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<< CI.getFrontendOpts().ActionName;
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return nullptr;
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}
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case PrintPreamble: return std::make_unique<PrintPreambleAction>();
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case PrintPreprocessedInput: {
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if (CI.getPreprocessorOutputOpts().RewriteIncludes ||
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CI.getPreprocessorOutputOpts().RewriteImports)
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return std::make_unique<RewriteIncludesAction>();
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return std::make_unique<PrintPreprocessedAction>();
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}
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case RewriteMacros: return std::make_unique<RewriteMacrosAction>();
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case RewriteTest: return std::make_unique<RewriteTestAction>();
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#if CLANG_ENABLE_OBJC_REWRITER
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case RewriteObjC: return std::make_unique<RewriteObjCAction>();
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#else
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case RewriteObjC: Action = "RewriteObjC"; break;
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#endif
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#if CLANG_ENABLE_STATIC_ANALYZER
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case RunAnalysis: return std::make_unique<ento::AnalysisAction>();
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#else
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case RunAnalysis: Action = "RunAnalysis"; break;
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#endif
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case RunPreprocessorOnly: return std::make_unique<PreprocessOnlyAction>();
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case PrintDependencyDirectivesSourceMinimizerOutput:
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return std::make_unique<PrintDependencyDirectivesSourceMinimizerAction>();
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}
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#if !CLANG_ENABLE_STATIC_ANALYZER || !CLANG_ENABLE_OBJC_REWRITER
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CI.getDiagnostics().Report(diag::err_fe_action_not_available) << Action;
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return 0;
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#else
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llvm_unreachable("Invalid program action!");
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#endif
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}
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std::unique_ptr<FrontendAction>
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CreateFrontendAction(CompilerInstance &CI) {
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// Create the underlying action.
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std::unique_ptr<FrontendAction> Act = CreateFrontendBaseAction(CI);
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if (!Act)
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return nullptr;
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const FrontendOptions &FEOpts = CI.getFrontendOpts();
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if (FEOpts.FixAndRecompile) {
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Act = std::make_unique<FixItRecompile>(std::move(Act));
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}
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// Wrap the base FE action in an extract api action to generate
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// symbol graph as a biproduct of compilation (enabled with
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// --emit-symbol-graph option)
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if (FEOpts.EmitSymbolGraph) {
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if (FEOpts.SymbolGraphOutputDir.empty()) {
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CI.getDiagnostics().Report(diag::warn_missing_symbol_graph_dir);
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CI.getFrontendOpts().SymbolGraphOutputDir = ".";
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}
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CI.getCodeGenOpts().ClearASTBeforeBackend = false;
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Act = std::make_unique<WrappingExtractAPIAction>(std::move(Act));
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}
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// If there are any AST files to merge, create a frontend action
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// adaptor to perform the merge.
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if (!FEOpts.ASTMergeFiles.empty())
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Act = std::make_unique<ASTMergeAction>(std::move(Act),
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FEOpts.ASTMergeFiles);
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return Act;
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}
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bool ExecuteCompilerInvocation(CompilerInstance *Clang) {
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// Honor -help.
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if (Clang->getFrontendOpts().ShowHelp) {
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driver::getDriverOptTable().printHelp(
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llvm::outs(), "clang -cc1 [options] file...",
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"LLVM 'Clang' Compiler: http://clang.llvm.org",
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/*ShowHidden=*/false, /*ShowAllAliases=*/false,
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llvm::opt::Visibility(driver::options::CC1Option));
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return true;
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}
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// Honor -version.
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//
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// FIXME: Use a better -version message?
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if (Clang->getFrontendOpts().ShowVersion) {
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llvm::cl::PrintVersionMessage();
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return true;
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}
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Clang->LoadRequestedPlugins();
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// Honor -mllvm.
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//
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// FIXME: Remove this, one day.
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// This should happen AFTER plugins have been loaded!
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if (!Clang->getFrontendOpts().LLVMArgs.empty()) {
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unsigned NumArgs = Clang->getFrontendOpts().LLVMArgs.size();
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auto Args = std::make_unique<const char*[]>(NumArgs + 2);
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Args[0] = "clang (LLVM option parsing)";
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for (unsigned i = 0; i != NumArgs; ++i)
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Args[i + 1] = Clang->getFrontendOpts().LLVMArgs[i].c_str();
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Args[NumArgs + 1] = nullptr;
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llvm::cl::ParseCommandLineOptions(NumArgs + 1, Args.get());
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}
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#if CLANG_ENABLE_STATIC_ANALYZER
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// These should happen AFTER plugins have been loaded!
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AnalyzerOptions &AnOpts = Clang->getAnalyzerOpts();
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// Honor -analyzer-checker-help and -analyzer-checker-help-hidden.
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if (AnOpts.ShowCheckerHelp || AnOpts.ShowCheckerHelpAlpha ||
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AnOpts.ShowCheckerHelpDeveloper) {
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ento::printCheckerHelp(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-checker-option-help.
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if (AnOpts.ShowCheckerOptionList || AnOpts.ShowCheckerOptionAlphaList ||
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AnOpts.ShowCheckerOptionDeveloperList) {
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ento::printCheckerConfigList(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-list-enabled-checkers.
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if (AnOpts.ShowEnabledCheckerList) {
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ento::printEnabledCheckerList(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-config-help.
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if (AnOpts.ShowConfigOptionsList) {
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ento::printAnalyzerConfigList(llvm::outs());
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return true;
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}
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#endif
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// If there were errors in processing arguments, don't do anything else.
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if (Clang->getDiagnostics().hasErrorOccurred())
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return false;
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// Create and execute the frontend action.
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std::unique_ptr<FrontendAction> Act(CreateFrontendAction(*Clang));
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if (!Act)
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return false;
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bool Success = Clang->ExecuteAction(*Act);
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if (Clang->getFrontendOpts().DisableFree)
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llvm::BuryPointer(std::move(Act));
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return Success;
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}
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} // namespace clang
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