| //===--- CodeGenAction.cpp - LLVM Code Generation Frontend Action ---------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "clang/CodeGen/CodeGenAction.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/DeclGroup.h" |
| #include "clang/Basic/FileManager.h" |
| #include "clang/Basic/SourceManager.h" |
| #include "clang/Basic/TargetInfo.h" |
| #include "clang/CodeGen/BackendUtil.h" |
| #include "clang/CodeGen/ModuleBuilder.h" |
| #include "clang/Frontend/CompilerInstance.h" |
| #include "clang/Frontend/FrontendDiagnostic.h" |
| #include "llvm/ADT/SmallString.h" |
| #include "llvm/Bitcode/ReaderWriter.h" |
| #include "llvm/IR/DiagnosticInfo.h" |
| #include "llvm/IR/DiagnosticPrinter.h" |
| #include "llvm/IR/LLVMContext.h" |
| #include "llvm/IR/Module.h" |
| #include "llvm/IRReader/IRReader.h" |
| #include "llvm/Linker/Linker.h" |
| #include "llvm/Pass.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/SourceMgr.h" |
| #include "llvm/Support/Timer.h" |
| #include <memory> |
| using namespace clang; |
| using namespace llvm; |
| |
| namespace clang { |
| class BackendConsumer : public ASTConsumer { |
| virtual void anchor(); |
| DiagnosticsEngine &Diags; |
| BackendAction Action; |
| const CodeGenOptions &CodeGenOpts; |
| const TargetOptions &TargetOpts; |
| const LangOptions &LangOpts; |
| raw_ostream *AsmOutStream; |
| ASTContext *Context; |
| |
| Timer LLVMIRGeneration; |
| |
| std::unique_ptr<CodeGenerator> Gen; |
| |
| std::unique_ptr<llvm::Module> TheModule, LinkModule; |
| |
| public: |
| BackendConsumer(BackendAction action, DiagnosticsEngine &_Diags, |
| const CodeGenOptions &compopts, |
| const TargetOptions &targetopts, |
| const LangOptions &langopts, bool TimePasses, |
| const std::string &infile, llvm::Module *LinkModule, |
| raw_ostream *OS, LLVMContext &C) |
| : Diags(_Diags), Action(action), CodeGenOpts(compopts), |
| TargetOpts(targetopts), LangOpts(langopts), AsmOutStream(OS), |
| Context(), LLVMIRGeneration("LLVM IR Generation Time"), |
| Gen(CreateLLVMCodeGen(Diags, infile, compopts, targetopts, C)), |
| LinkModule(LinkModule) { |
| llvm::TimePassesIsEnabled = TimePasses; |
| } |
| |
| llvm::Module *takeModule() { return TheModule.release(); } |
| llvm::Module *takeLinkModule() { return LinkModule.release(); } |
| |
| void HandleCXXStaticMemberVarInstantiation(VarDecl *VD) override { |
| Gen->HandleCXXStaticMemberVarInstantiation(VD); |
| } |
| |
| void Initialize(ASTContext &Ctx) override { |
| Context = &Ctx; |
| |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.startTimer(); |
| |
| Gen->Initialize(Ctx); |
| |
| TheModule.reset(Gen->GetModule()); |
| |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.stopTimer(); |
| } |
| |
| bool HandleTopLevelDecl(DeclGroupRef D) override { |
| PrettyStackTraceDecl CrashInfo(*D.begin(), SourceLocation(), |
| Context->getSourceManager(), |
| "LLVM IR generation of declaration"); |
| |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.startTimer(); |
| |
| Gen->HandleTopLevelDecl(D); |
| |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.stopTimer(); |
| |
| return true; |
| } |
| |
| void HandleTranslationUnit(ASTContext &C) override { |
| { |
| PrettyStackTraceString CrashInfo("Per-file LLVM IR generation"); |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.startTimer(); |
| |
| Gen->HandleTranslationUnit(C); |
| |
| if (llvm::TimePassesIsEnabled) |
| LLVMIRGeneration.stopTimer(); |
| } |
| |
| // Silently ignore if we weren't initialized for some reason. |
| if (!TheModule) |
| return; |
| |
| // Make sure IR generation is happy with the module. This is released by |
| // the module provider. |
| llvm::Module *M = Gen->ReleaseModule(); |
| if (!M) { |
| // The module has been released by IR gen on failures, do not double |
| // free. |
| TheModule.release(); |
| return; |
| } |
| |
| assert(TheModule.get() == M && |
| "Unexpected module change during IR generation"); |
| |
| // Link LinkModule into this module if present, preserving its validity. |
| if (LinkModule) { |
| std::string ErrorMsg; |
| if (Linker::LinkModules(M, LinkModule.get(), Linker::PreserveSource, |
| &ErrorMsg)) { |
| Diags.Report(diag::err_fe_cannot_link_module) |
| << LinkModule->getModuleIdentifier() << ErrorMsg; |
| return; |
| } |
| } |
| |
| // Install an inline asm handler so that diagnostics get printed through |
| // our diagnostics hooks. |
| LLVMContext &Ctx = TheModule->getContext(); |
| LLVMContext::InlineAsmDiagHandlerTy OldHandler = |
| Ctx.getInlineAsmDiagnosticHandler(); |
| void *OldContext = Ctx.getInlineAsmDiagnosticContext(); |
| Ctx.setInlineAsmDiagnosticHandler(InlineAsmDiagHandler, this); |
| |
| LLVMContext::DiagnosticHandlerTy OldDiagnosticHandler = |
| Ctx.getDiagnosticHandler(); |
| void *OldDiagnosticContext = Ctx.getDiagnosticContext(); |
| Ctx.setDiagnosticHandler(DiagnosticHandler, this); |
| |
| EmitBackendOutput(Diags, CodeGenOpts, TargetOpts, LangOpts, |
| C.getTargetInfo().getTargetDescription(), |
| TheModule.get(), Action, AsmOutStream); |
| |
| Ctx.setInlineAsmDiagnosticHandler(OldHandler, OldContext); |
| |
| Ctx.setDiagnosticHandler(OldDiagnosticHandler, OldDiagnosticContext); |
| } |
| |
| void HandleTagDeclDefinition(TagDecl *D) override { |
| PrettyStackTraceDecl CrashInfo(D, SourceLocation(), |
| Context->getSourceManager(), |
| "LLVM IR generation of declaration"); |
| Gen->HandleTagDeclDefinition(D); |
| } |
| |
| void HandleTagDeclRequiredDefinition(const TagDecl *D) override { |
| Gen->HandleTagDeclRequiredDefinition(D); |
| } |
| |
| void CompleteTentativeDefinition(VarDecl *D) override { |
| Gen->CompleteTentativeDefinition(D); |
| } |
| |
| void HandleVTable(CXXRecordDecl *RD, bool DefinitionRequired) override { |
| Gen->HandleVTable(RD, DefinitionRequired); |
| } |
| |
| void HandleLinkerOptionPragma(llvm::StringRef Opts) override { |
| Gen->HandleLinkerOptionPragma(Opts); |
| } |
| |
| void HandleDetectMismatch(llvm::StringRef Name, |
| llvm::StringRef Value) override { |
| Gen->HandleDetectMismatch(Name, Value); |
| } |
| |
| void HandleDependentLibrary(llvm::StringRef Opts) override { |
| Gen->HandleDependentLibrary(Opts); |
| } |
| |
| static void InlineAsmDiagHandler(const llvm::SMDiagnostic &SM,void *Context, |
| unsigned LocCookie) { |
| SourceLocation Loc = SourceLocation::getFromRawEncoding(LocCookie); |
| ((BackendConsumer*)Context)->InlineAsmDiagHandler2(SM, Loc); |
| } |
| |
| static void DiagnosticHandler(const llvm::DiagnosticInfo &DI, |
| void *Context) { |
| ((BackendConsumer *)Context)->DiagnosticHandlerImpl(DI); |
| } |
| |
| void InlineAsmDiagHandler2(const llvm::SMDiagnostic &, |
| SourceLocation LocCookie); |
| |
| void DiagnosticHandlerImpl(const llvm::DiagnosticInfo &DI); |
| /// \brief Specialized handler for InlineAsm diagnostic. |
| /// \return True if the diagnostic has been successfully reported, false |
| /// otherwise. |
| bool InlineAsmDiagHandler(const llvm::DiagnosticInfoInlineAsm &D); |
| /// \brief Specialized handler for StackSize diagnostic. |
| /// \return True if the diagnostic has been successfully reported, false |
| /// otherwise. |
| bool StackSizeDiagHandler(const llvm::DiagnosticInfoStackSize &D); |
| }; |
| |
| void BackendConsumer::anchor() {} |
| } |
| |
| /// ConvertBackendLocation - Convert a location in a temporary llvm::SourceMgr |
| /// buffer to be a valid FullSourceLoc. |
| static FullSourceLoc ConvertBackendLocation(const llvm::SMDiagnostic &D, |
| SourceManager &CSM) { |
| // Get both the clang and llvm source managers. The location is relative to |
| // a memory buffer that the LLVM Source Manager is handling, we need to add |
| // a copy to the Clang source manager. |
| const llvm::SourceMgr &LSM = *D.getSourceMgr(); |
| |
| // We need to copy the underlying LLVM memory buffer because llvm::SourceMgr |
| // already owns its one and clang::SourceManager wants to own its one. |
| const MemoryBuffer *LBuf = |
| LSM.getMemoryBuffer(LSM.FindBufferContainingLoc(D.getLoc())); |
| |
| // Create the copy and transfer ownership to clang::SourceManager. |
| llvm::MemoryBuffer *CBuf = |
| llvm::MemoryBuffer::getMemBufferCopy(LBuf->getBuffer(), |
| LBuf->getBufferIdentifier()); |
| FileID FID = CSM.createFileIDForMemBuffer(CBuf); |
| |
| // Translate the offset into the file. |
| unsigned Offset = D.getLoc().getPointer() - LBuf->getBufferStart(); |
| SourceLocation NewLoc = |
| CSM.getLocForStartOfFile(FID).getLocWithOffset(Offset); |
| return FullSourceLoc(NewLoc, CSM); |
| } |
| |
| |
| /// InlineAsmDiagHandler2 - This function is invoked when the backend hits an |
| /// error parsing inline asm. The SMDiagnostic indicates the error relative to |
| /// the temporary memory buffer that the inline asm parser has set up. |
| void BackendConsumer::InlineAsmDiagHandler2(const llvm::SMDiagnostic &D, |
| SourceLocation LocCookie) { |
| // There are a couple of different kinds of errors we could get here. First, |
| // we re-format the SMDiagnostic in terms of a clang diagnostic. |
| |
| // Strip "error: " off the start of the message string. |
| StringRef Message = D.getMessage(); |
| if (Message.startswith("error: ")) |
| Message = Message.substr(7); |
| |
| // If the SMDiagnostic has an inline asm source location, translate it. |
| FullSourceLoc Loc; |
| if (D.getLoc() != SMLoc()) |
| Loc = ConvertBackendLocation(D, Context->getSourceManager()); |
| |
| |
| // If this problem has clang-level source location information, report the |
| // issue as being an error in the source with a note showing the instantiated |
| // code. |
| if (LocCookie.isValid()) { |
| Diags.Report(LocCookie, diag::err_fe_inline_asm).AddString(Message); |
| |
| if (D.getLoc().isValid()) { |
| DiagnosticBuilder B = Diags.Report(Loc, diag::note_fe_inline_asm_here); |
| // Convert the SMDiagnostic ranges into SourceRange and attach them |
| // to the diagnostic. |
| for (unsigned i = 0, e = D.getRanges().size(); i != e; ++i) { |
| std::pair<unsigned, unsigned> Range = D.getRanges()[i]; |
| unsigned Column = D.getColumnNo(); |
| B << SourceRange(Loc.getLocWithOffset(Range.first - Column), |
| Loc.getLocWithOffset(Range.second - Column)); |
| } |
| } |
| return; |
| } |
| |
| // Otherwise, report the backend error as occurring in the generated .s file. |
| // If Loc is invalid, we still need to report the error, it just gets no |
| // location info. |
| Diags.Report(Loc, diag::err_fe_inline_asm).AddString(Message); |
| } |
| |
| #define ComputeDiagID(Severity, GroupName, DiagID) \ |
| do { \ |
| switch (Severity) { \ |
| case llvm::DS_Error: \ |
| DiagID = diag::err_fe_##GroupName; \ |
| break; \ |
| case llvm::DS_Warning: \ |
| DiagID = diag::warn_fe_##GroupName; \ |
| break; \ |
| case llvm::DS_Remark: \ |
| llvm_unreachable("'remark' severity not expected"); \ |
| break; \ |
| case llvm::DS_Note: \ |
| DiagID = diag::note_fe_##GroupName; \ |
| break; \ |
| } \ |
| } while (false) |
| |
| #define ComputeDiagRemarkID(Severity, GroupName, DiagID) \ |
| do { \ |
| switch (Severity) { \ |
| case llvm::DS_Error: \ |
| DiagID = diag::err_fe_##GroupName; \ |
| break; \ |
| case llvm::DS_Warning: \ |
| DiagID = diag::warn_fe_##GroupName; \ |
| break; \ |
| case llvm::DS_Remark: \ |
| DiagID = diag::remark_fe_##GroupName; \ |
| break; \ |
| case llvm::DS_Note: \ |
| DiagID = diag::note_fe_##GroupName; \ |
| break; \ |
| } \ |
| } while (false) |
| |
| bool |
| BackendConsumer::InlineAsmDiagHandler(const llvm::DiagnosticInfoInlineAsm &D) { |
| unsigned DiagID; |
| ComputeDiagID(D.getSeverity(), inline_asm, DiagID); |
| std::string Message = D.getMsgStr().str(); |
| |
| // If this problem has clang-level source location information, report the |
| // issue as being a problem in the source with a note showing the instantiated |
| // code. |
| SourceLocation LocCookie = |
| SourceLocation::getFromRawEncoding(D.getLocCookie()); |
| if (LocCookie.isValid()) |
| Diags.Report(LocCookie, DiagID).AddString(Message); |
| else { |
| // Otherwise, report the backend diagnostic as occurring in the generated |
| // .s file. |
| // If Loc is invalid, we still need to report the diagnostic, it just gets |
| // no location info. |
| FullSourceLoc Loc; |
| Diags.Report(Loc, DiagID).AddString(Message); |
| } |
| // We handled all the possible severities. |
| return true; |
| } |
| |
| bool |
| BackendConsumer::StackSizeDiagHandler(const llvm::DiagnosticInfoStackSize &D) { |
| if (D.getSeverity() != llvm::DS_Warning) |
| // For now, the only support we have for StackSize diagnostic is warning. |
| // We do not know how to format other severities. |
| return false; |
| |
| // FIXME: We should demangle the function name. |
| // FIXME: Is there a way to get a location for that function? |
| FullSourceLoc Loc; |
| Diags.Report(Loc, diag::warn_fe_backend_frame_larger_than) |
| << D.getStackSize() << D.getFunction().getName(); |
| return true; |
| } |
| |
| /// \brief This function is invoked when the backend needs |
| /// to report something to the user. |
| void BackendConsumer::DiagnosticHandlerImpl(const DiagnosticInfo &DI) { |
| unsigned DiagID = diag::err_fe_inline_asm; |
| llvm::DiagnosticSeverity Severity = DI.getSeverity(); |
| // Get the diagnostic ID based. |
| switch (DI.getKind()) { |
| case llvm::DK_InlineAsm: |
| if (InlineAsmDiagHandler(cast<DiagnosticInfoInlineAsm>(DI))) |
| return; |
| ComputeDiagID(Severity, inline_asm, DiagID); |
| break; |
| case llvm::DK_StackSize: |
| if (StackSizeDiagHandler(cast<DiagnosticInfoStackSize>(DI))) |
| return; |
| ComputeDiagID(Severity, backend_frame_larger_than, DiagID); |
| break; |
| default: |
| // Plugin IDs are not bound to any value as they are set dynamically. |
| ComputeDiagRemarkID(Severity, backend_plugin, DiagID); |
| break; |
| } |
| std::string MsgStorage; |
| { |
| raw_string_ostream Stream(MsgStorage); |
| DiagnosticPrinterRawOStream DP(Stream); |
| DI.print(DP); |
| } |
| |
| // Report the backend message using the usual diagnostic mechanism. |
| FullSourceLoc Loc; |
| Diags.Report(Loc, DiagID).AddString(MsgStorage); |
| } |
| #undef ComputeDiagID |
| |
| CodeGenAction::CodeGenAction(unsigned _Act, LLVMContext *_VMContext) |
| : Act(_Act), LinkModule(0), |
| VMContext(_VMContext ? _VMContext : new LLVMContext), |
| OwnsVMContext(!_VMContext) {} |
| |
| CodeGenAction::~CodeGenAction() { |
| TheModule.reset(); |
| if (OwnsVMContext) |
| delete VMContext; |
| } |
| |
| bool CodeGenAction::hasIRSupport() const { return true; } |
| |
| void CodeGenAction::EndSourceFileAction() { |
| // If the consumer creation failed, do nothing. |
| if (!getCompilerInstance().hasASTConsumer()) |
| return; |
| |
| // If we were given a link module, release consumer's ownership of it. |
| if (LinkModule) |
| BEConsumer->takeLinkModule(); |
| |
| // Steal the module from the consumer. |
| TheModule.reset(BEConsumer->takeModule()); |
| } |
| |
| llvm::Module *CodeGenAction::takeModule() { return TheModule.release(); } |
| |
| llvm::LLVMContext *CodeGenAction::takeLLVMContext() { |
| OwnsVMContext = false; |
| return VMContext; |
| } |
| |
| static raw_ostream *GetOutputStream(CompilerInstance &CI, |
| StringRef InFile, |
| BackendAction Action) { |
| switch (Action) { |
| case Backend_EmitAssembly: |
| return CI.createDefaultOutputFile(false, InFile, "s"); |
| case Backend_EmitLL: |
| return CI.createDefaultOutputFile(false, InFile, "ll"); |
| case Backend_EmitBC: |
| return CI.createDefaultOutputFile(true, InFile, "bc"); |
| case Backend_EmitNothing: |
| return 0; |
| case Backend_EmitMCNull: |
| case Backend_EmitObj: |
| return CI.createDefaultOutputFile(true, InFile, "o"); |
| } |
| |
| llvm_unreachable("Invalid action!"); |
| } |
| |
| ASTConsumer *CodeGenAction::CreateASTConsumer(CompilerInstance &CI, |
| StringRef InFile) { |
| BackendAction BA = static_cast<BackendAction>(Act); |
| std::unique_ptr<raw_ostream> OS(GetOutputStream(CI, InFile, BA)); |
| if (BA != Backend_EmitNothing && !OS) |
| return 0; |
| |
| llvm::Module *LinkModuleToUse = LinkModule; |
| |
| // If we were not given a link module, and the user requested that one be |
| // loaded from bitcode, do so now. |
| const std::string &LinkBCFile = CI.getCodeGenOpts().LinkBitcodeFile; |
| if (!LinkModuleToUse && !LinkBCFile.empty()) { |
| std::string ErrorStr; |
| |
| llvm::MemoryBuffer *BCBuf = |
| CI.getFileManager().getBufferForFile(LinkBCFile, &ErrorStr); |
| if (!BCBuf) { |
| CI.getDiagnostics().Report(diag::err_cannot_open_file) |
| << LinkBCFile << ErrorStr; |
| return 0; |
| } |
| |
| ErrorOr<llvm::Module *> ModuleOrErr = |
| getLazyBitcodeModule(BCBuf, *VMContext); |
| if (error_code EC = ModuleOrErr.getError()) { |
| CI.getDiagnostics().Report(diag::err_cannot_open_file) |
| << LinkBCFile << EC.message(); |
| return 0; |
| } |
| LinkModuleToUse = ModuleOrErr.get(); |
| } |
| |
| BEConsumer = new BackendConsumer(BA, CI.getDiagnostics(), CI.getCodeGenOpts(), |
| CI.getTargetOpts(), CI.getLangOpts(), |
| CI.getFrontendOpts().ShowTimers, InFile, |
| LinkModuleToUse, OS.release(), *VMContext); |
| return BEConsumer; |
| } |
| |
| void CodeGenAction::ExecuteAction() { |
| // If this is an IR file, we have to treat it specially. |
| if (getCurrentFileKind() == IK_LLVM_IR) { |
| BackendAction BA = static_cast<BackendAction>(Act); |
| CompilerInstance &CI = getCompilerInstance(); |
| raw_ostream *OS = GetOutputStream(CI, getCurrentFile(), BA); |
| if (BA != Backend_EmitNothing && !OS) |
| return; |
| |
| bool Invalid; |
| SourceManager &SM = CI.getSourceManager(); |
| const llvm::MemoryBuffer *MainFile = SM.getBuffer(SM.getMainFileID(), |
| &Invalid); |
| if (Invalid) |
| return; |
| |
| // FIXME: This is stupid, IRReader shouldn't take ownership. |
| llvm::MemoryBuffer *MainFileCopy = |
| llvm::MemoryBuffer::getMemBufferCopy(MainFile->getBuffer(), |
| getCurrentFile()); |
| |
| llvm::SMDiagnostic Err; |
| TheModule.reset(ParseIR(MainFileCopy, Err, *VMContext)); |
| if (!TheModule) { |
| // Translate from the diagnostic info to the SourceManager location. |
| SourceLocation Loc = SM.translateFileLineCol( |
| SM.getFileEntryForID(SM.getMainFileID()), Err.getLineNo(), |
| Err.getColumnNo() + 1); |
| |
| // Strip off a leading diagnostic code if there is one. |
| StringRef Msg = Err.getMessage(); |
| if (Msg.startswith("error: ")) |
| Msg = Msg.substr(7); |
| |
| unsigned DiagID = |
| CI.getDiagnostics().getCustomDiagID(DiagnosticsEngine::Error, "%0"); |
| |
| CI.getDiagnostics().Report(Loc, DiagID) << Msg; |
| return; |
| } |
| const TargetOptions &TargetOpts = CI.getTargetOpts(); |
| if (TheModule->getTargetTriple() != TargetOpts.Triple) { |
| unsigned DiagID = CI.getDiagnostics().getCustomDiagID( |
| DiagnosticsEngine::Warning, |
| "overriding the module target triple with %0"); |
| |
| CI.getDiagnostics().Report(SourceLocation(), DiagID) << TargetOpts.Triple; |
| TheModule->setTargetTriple(TargetOpts.Triple); |
| } |
| |
| EmitBackendOutput(CI.getDiagnostics(), CI.getCodeGenOpts(), TargetOpts, |
| CI.getLangOpts(), CI.getTarget().getTargetDescription(), |
| TheModule.get(), BA, OS); |
| return; |
| } |
| |
| // Otherwise follow the normal AST path. |
| this->ASTFrontendAction::ExecuteAction(); |
| } |
| |
| // |
| |
| void EmitAssemblyAction::anchor() { } |
| EmitAssemblyAction::EmitAssemblyAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitAssembly, _VMContext) {} |
| |
| void EmitBCAction::anchor() { } |
| EmitBCAction::EmitBCAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitBC, _VMContext) {} |
| |
| void EmitLLVMAction::anchor() { } |
| EmitLLVMAction::EmitLLVMAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitLL, _VMContext) {} |
| |
| void EmitLLVMOnlyAction::anchor() { } |
| EmitLLVMOnlyAction::EmitLLVMOnlyAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitNothing, _VMContext) {} |
| |
| void EmitCodeGenOnlyAction::anchor() { } |
| EmitCodeGenOnlyAction::EmitCodeGenOnlyAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitMCNull, _VMContext) {} |
| |
| void EmitObjAction::anchor() { } |
| EmitObjAction::EmitObjAction(llvm::LLVMContext *_VMContext) |
| : CodeGenAction(Backend_EmitObj, _VMContext) {} |
