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| 1 //===- subzero/src/IceTranslator.h - ICE to machine code --------*- C++ -*-===// |
| 2 // |
| 3 // The Subzero Code Generator |
| 4 // |
| 5 // This file is distributed under the University of Illinois Open Source |
| 6 // License. See LICENSE.TXT for details. |
| 7 // |
| 8 //===----------------------------------------------------------------------===// |
| 9 // |
| 10 // This file declares the general driver class for translating ICE to |
| 11 // machine code. |
| 12 // |
| 13 //===----------------------------------------------------------------------===// |
| 14 |
| 15 #ifndef SUBZERO_SRC_ICETRANSLATOR_H |
| 16 #define SUBZERO_SRC_ICETRANSLATOR_H |
| 17 |
| 18 #include "llvm/ADT/OwningPtr.h" |
| 19 |
| 20 namespace Ice { |
| 21 |
| 22 class ClFlags; |
| 23 class Cfg; |
| 24 class GlobalContext; |
| 25 |
| 26 // Base class for translating ICE to machine code. |
| 27 // Derived classes convert other intermediate representations down to ICE, |
| 28 // and then call the appropriate (inherited) methods to convert ICE into |
| 29 // machine instructions. |
| 30 class Translator { |
| 31 public: |
| 32 Translator(GlobalContext *Ctx, ClFlags &Flags) |
| 33 : Ctx(Ctx), Flags(Flags), ExitStatus(0) {} |
| 34 |
| 35 ~Translator(); |
| 36 int getExitStatus() const { return ExitStatus; } |
| 37 |
| 38 protected: |
| 39 GlobalContext *Ctx; |
| 40 ClFlags &Flags; |
| 41 // The exit status of the translation. 0 is successful. Nonzero |
| 42 // otherwise. |
| 43 bool ExitStatus; |
| 44 // Ideally, Func would be inside the methods that converts IR to |
| 45 // functions. However, emitting the constant pool requires a valid |
| 46 // Cfg object, so we need to defer deleting the last non-empty Cfg |
| 47 // object to emit the constant pool (via emitConstants). TODO: |
| 48 // Since all constants are globally pooled in the GlobalContext |
| 49 // object, change all Constant related functions to use |
| 50 // GlobalContext instead of Cfg, and then make emitConstantPool use |
| 51 // that. |
| 52 llvm::OwningPtr<Cfg> Func; |
| 53 |
| 54 /// Translates the constructed ICE function Fcn to machine code. |
| 55 /// Note: As a side effect, Field Func is set to Fcn. |
| 56 void translateFcn(Cfg *Fcn); |
| 57 |
| 58 /// Emits the constant pool. |
| 59 void emitConstants(); |
| 60 |
| 61 private: |
| 62 Translator(const Translator &) LLVM_DELETED_FUNCTION; |
| 63 Translator &operator=(const Translator &) LLVM_DELETED_FUNCTION; |
| 64 }; |
| 65 } |
| 66 |
| 67 #endif // SUBZERO_SRC_ICETRANSLATOR_H |
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