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Diffstat (limited to 'clang-r344140b/include/clang/CodeGen/CodeGenAction.h')
| -rw-r--r-- | clang-r344140b/include/clang/CodeGen/CodeGenAction.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/clang-r344140b/include/clang/CodeGen/CodeGenAction.h b/clang-r344140b/include/clang/CodeGen/CodeGenAction.h new file mode 100644 index 00000000..5a18a9de --- /dev/null +++ b/clang-r344140b/include/clang/CodeGen/CodeGenAction.h @@ -0,0 +1,122 @@ +//===--- CodeGenAction.h - LLVM Code Generation Frontend Action -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_CODEGEN_CODEGENACTION_H +#define LLVM_CLANG_CODEGEN_CODEGENACTION_H + +#include "clang/Frontend/FrontendAction.h" +#include <memory> + +namespace llvm { + class LLVMContext; + class Module; +} + +namespace clang { +class BackendConsumer; + +class CodeGenAction : public ASTFrontendAction { +private: + // Let BackendConsumer access LinkModule. + friend class BackendConsumer; + + /// Info about module to link into a module we're generating. + struct LinkModule { + /// The module to link in. + std::unique_ptr<llvm::Module> Module; + + /// If true, we set attributes on Module's functions according to our + /// CodeGenOptions and LangOptions, as though we were generating the + /// function ourselves. + bool PropagateAttrs; + + /// If true, we use LLVM module internalizer. + bool Internalize; + + /// Bitwise combination of llvm::LinkerFlags used when we link the module. + unsigned LinkFlags; + }; + + unsigned Act; + std::unique_ptr<llvm::Module> TheModule; + + /// Bitcode modules to link in to our module. + SmallVector<LinkModule, 4> LinkModules; + llvm::LLVMContext *VMContext; + bool OwnsVMContext; + + std::unique_ptr<llvm::Module> loadModule(llvm::MemoryBufferRef MBRef); + +protected: + /// Create a new code generation action. If the optional \p _VMContext + /// parameter is supplied, the action uses it without taking ownership, + /// otherwise it creates a fresh LLVM context and takes ownership. + CodeGenAction(unsigned _Act, llvm::LLVMContext *_VMContext = nullptr); + + bool hasIRSupport() const override; + + std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI, + StringRef InFile) override; + + void ExecuteAction() override; + + void EndSourceFileAction() override; + +public: + ~CodeGenAction() override; + + /// Take the generated LLVM module, for use after the action has been run. + /// The result may be null on failure. + std::unique_ptr<llvm::Module> takeModule(); + + /// Take the LLVM context used by this action. + llvm::LLVMContext *takeLLVMContext(); + + BackendConsumer *BEConsumer; +}; + +class EmitAssemblyAction : public CodeGenAction { + virtual void anchor(); +public: + EmitAssemblyAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +class EmitBCAction : public CodeGenAction { + virtual void anchor(); +public: + EmitBCAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +class EmitLLVMAction : public CodeGenAction { + virtual void anchor(); +public: + EmitLLVMAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +class EmitLLVMOnlyAction : public CodeGenAction { + virtual void anchor(); +public: + EmitLLVMOnlyAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +class EmitCodeGenOnlyAction : public CodeGenAction { + virtual void anchor(); +public: + EmitCodeGenOnlyAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +class EmitObjAction : public CodeGenAction { + virtual void anchor(); +public: + EmitObjAction(llvm::LLVMContext *_VMContext = nullptr); +}; + +} + +#endif |
