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      1 /*
      2  * Copyright 2012, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef BCC_SUPPORT_COMPILER_CONFIG_H
     18 #define BCC_SUPPORT_COMPILER_CONFIG_H
     19 
     20 #include <string>
     21 #include <vector>
     22 
     23 #include <llvm/ADT/Triple.h>
     24 #include <llvm/Support/CodeGen.h>
     25 #include <llvm/Target/TargetOptions.h>
     26 
     27 namespace llvm {
     28 
     29 class Target;
     30 
     31 } // end namespace llvm
     32 
     33 namespace bcc {
     34 
     35 class CompilerConfig {
     36 private:
     37   //===--------------------------------------------------------------------===//
     38   // Available Configurations
     39   //===--------------------------------------------------------------------===//
     40   std::string mTriple;
     41 
     42   // Optional. If given, the name of the target CPU to generate code for.
     43   std::string mCPU;
     44 
     45   llvm::TargetOptions mTargetOpts;
     46 
     47   llvm::CodeModel::Model mCodeModel;
     48 
     49   llvm::CodeGenOpt::Level mOptLevel;
     50 
     51   llvm::Reloc::Model mRelocModel;
     52 
     53   // The list of target specific features to enable or disable -- this should
     54   // be a list of strings starting with '+' (enable) or '-' (disable).
     55   std::string mFeatureString;
     56 
     57 private:
     58   //===--------------------------------------------------------------------===//
     59   // These are generated by CompilerConfig during initialize().
     60   //===--------------------------------------------------------------------===//
     61   const llvm::Target *mTarget;
     62   bool initializeTarget();
     63 
     64   llvm::Triple::ArchType mArchType;
     65   void initializeArch();
     66 
     67 public:
     68   //===--------------------------------------------------------------------===//
     69   // Getters
     70   //===--------------------------------------------------------------------===//
     71   inline const std::string &getTriple() const
     72   { return mTriple; }
     73 
     74   inline const std::string &getCPU() const
     75   { return mCPU; }
     76   inline void setCPU(const std::string &pCPU)
     77   { mCPU = pCPU; }
     78 
     79   inline const llvm::TargetOptions &getTargetOptions() const
     80   { return mTargetOpts; }
     81   inline llvm::TargetOptions &getTargetOptions()
     82   { return mTargetOpts; }
     83 
     84   inline llvm::CodeModel::Model getCodeModel() const
     85   { return mCodeModel; }
     86   inline void setCodeModel(llvm::CodeModel::Model pCodeMode)
     87   { mCodeModel = pCodeMode; }
     88 
     89   inline llvm::CodeGenOpt::Level getOptimizationLevel() const
     90   { return mOptLevel; }
     91   inline void setOptimizationLevel(llvm::CodeGenOpt::Level pOptLvl)
     92   { mOptLevel = pOptLvl; }
     93 
     94   inline llvm::Reloc::Model getRelocationModel() const
     95   { return mRelocModel; }
     96   inline void setRelocationModel(llvm::Reloc::Model pRelocModel)
     97   { mRelocModel = pRelocModel; }
     98 
     99   inline const llvm::Target *getTarget() const
    100   { return mTarget; }
    101 
    102   inline llvm::Triple::ArchType getArchType() const
    103   { return mArchType; }
    104 
    105   inline const std::string &getFeatureString() const
    106   { return mFeatureString; }
    107   void setFeatureString(const std::vector<std::string> &pAttrs);
    108 
    109 public:
    110   CompilerConfig(const std::string &pTriple);
    111 
    112   virtual ~CompilerConfig() { }
    113 };
    114 
    115 } // end namespace bcc
    116 
    117 #endif  // BCC_SUPPORT_COMPILER_CONFIG_H
    118