include/clang/CodeGen/CodeGenAction.h

   1 //===--- CodeGenAction.h - LLVM Code Generation Frontend Action -*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef LLVM_CLANG_CODEGEN_CODE_GEN_ACTION_H
  11 #define LLVM_CLANG_CODEGEN_CODE_GEN_ACTION_H
  12
  13 #include "clang/Frontend/FrontendAction.h"
  14 #include "llvm/ADT/OwningPtr.h"
  15
  16 namespace llvm {
  17   class LLVMContext;
  18   class Module;
  19 }
  20
  21 namespace clang {
  22 class BackendConsumer;
  23
  24 class CodeGenAction : public ASTFrontendAction {
  25 private:
  26   unsigned Act;
  27   llvm::OwningPtr<llvm::Module> TheModule;
  28   llvm::LLVMContext *VMContext;
  29   bool OwnsVMContext;
  30
  31 protected:
  32   /// Create a new code generation action.  If the optional \arg _VMContext
  33   /// parameter is supplied, the action uses it without taking ownership,
  34   /// otherwise it creates a fresh LLVM context and takes ownership.
  35   CodeGenAction(unsigned _Act, llvm::LLVMContext *_VMContext = 0);
  36
  37   virtual bool hasIRSupport() const;
  38
  39   virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
  40                                          llvm::StringRef InFile);
  41
  42   virtual void ExecuteAction();
  43
  44   virtual void EndSourceFileAction();
  45
  46 public:
  47   ~CodeGenAction();
  48
  49   /// takeModule - Take the generated LLVM module, for use after the action has
  50   /// been run. The result may be null on failure.
  51   llvm::Module *takeModule();
  52
  53   /// Take the LLVM context used by this action.
  54   llvm::LLVMContext *takeLLVMContext();
  55
  56   BackendConsumer *BEConsumer;
  57 };
  58
  59 class EmitAssemblyAction : public CodeGenAction {
  60 public:
  61   EmitAssemblyAction(llvm::LLVMContext *_VMContext = 0);
  62 };
  63
  64 class EmitBCAction : public CodeGenAction {
  65 public:
  66   EmitBCAction(llvm::LLVMContext *_VMContext = 0);
  67 };
  68
  69 class EmitLLVMAction : public CodeGenAction {
  70 public:
  71   EmitLLVMAction(llvm::LLVMContext *_VMContext = 0);
  72 };
  73
  74 class EmitLLVMOnlyAction : public CodeGenAction {
  75 public:
  76   EmitLLVMOnlyAction(llvm::LLVMContext *_VMContext = 0);
  77 };
  78
  79 class EmitCodeGenOnlyAction : public CodeGenAction {
  80 public:
  81   EmitCodeGenOnlyAction(llvm::LLVMContext *_VMContext = 0);
  82 };
  83
  84 class EmitObjAction : public CodeGenAction {
  85 public:
  86   EmitObjAction(llvm::LLVMContext *_VMContext = 0);
  87 };
  88
  89 }
  90
  91 #endif