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_TARGET_COMPILER_CONFIGS_H 18 #define BCC_SUPPORT_TARGET_COMPILER_CONFIGS_H 19 20 #include "bcc/Config/Config.h" 21 #include "bcc/Support/CompilerConfig.h" 22 23 namespace bcc { 24 25 //===----------------------------------------------------------------------===// 26 // ARM 27 //===----------------------------------------------------------------------===// 28 #if defined(PROVIDE_ARM_CODEGEN) 29 class ARMBaseCompilerConfig : public CompilerConfig { 30 private: 31 bool mEnableNEON; 32 bool mInThumbMode; 33 34 static bool HasThumb2(); 35 36 static void GetFeatureVector(std::vector<std::string> &pAttributes, 37 bool pInThumbMode, bool pEnableNEON); 38 39 protected: 40 ARMBaseCompilerConfig(const std::string &pTriple, bool pInThumbMode); 41 42 public: 43 // Return true if config has been changed after returning from this function. 44 bool enableNEON(bool pEnable = true); 45 isInThumbMode()46 bool isInThumbMode() const 47 { return mInThumbMode; } 48 }; 49 50 class ARMCompilerConfig : public ARMBaseCompilerConfig { 51 public: ARMCompilerConfig()52 ARMCompilerConfig() 53 : ARMBaseCompilerConfig(DEFAULT_ARM_TRIPLE_STRING, 54 /* pInThumbMode */false) { } 55 }; 56 57 class ThumbCompilerConfig : public ARMBaseCompilerConfig { 58 public: ThumbCompilerConfig()59 ThumbCompilerConfig() 60 : ARMBaseCompilerConfig(DEFAULT_THUMB_TRIPLE_STRING, 61 /* pInThumbMode */true) { } 62 }; 63 #endif // defined(PROVIDE_ARM_CODEGEN) 64 65 //===----------------------------------------------------------------------===// 66 // MIPS 67 //===----------------------------------------------------------------------===// 68 #if defined(PROVIDE_MIPS_CODEGEN) 69 class MipsCompilerConfig : public CompilerConfig { 70 public: MipsCompilerConfig()71 MipsCompilerConfig() : CompilerConfig(DEFAULT_MIPS_TRIPLE_STRING) { 72 setRelocationModel(llvm::Reloc::Static); 73 } 74 }; 75 #endif // defined(PROVIDE_MIPS_CODEGEN) 76 77 //===----------------------------------------------------------------------===// 78 // X86 and X86_64 79 //===----------------------------------------------------------------------===// 80 #if defined(PROVIDE_X86_CODEGEN) 81 class X86FamilyCompilerConfigBase : public CompilerConfig { 82 protected: X86FamilyCompilerConfigBase(const std::string & pTriple)83 X86FamilyCompilerConfigBase(const std::string &pTriple) 84 : CompilerConfig(pTriple) { 85 // Disable frame pointer elimination optimization on x86 family. 86 getTargetOptions().NoFramePointerElim = true; 87 getTargetOptions().UseInitArray = true; 88 return; 89 } 90 }; 91 92 class X86_32CompilerConfig : public X86FamilyCompilerConfigBase { 93 public: X86_32CompilerConfig()94 X86_32CompilerConfig() : 95 X86FamilyCompilerConfigBase(DEFAULT_X86_TRIPLE_STRING) { } 96 }; 97 98 class X86_64CompilerConfig : public X86FamilyCompilerConfigBase { 99 public: X86_64CompilerConfig()100 X86_64CompilerConfig() : 101 X86FamilyCompilerConfigBase(DEFAULT_X86_64_TRIPLE_STRING) { 102 setCodeModel(llvm::CodeModel::Medium); 103 } 104 }; 105 #endif // defined(PROVIDE_X86_CODEGEN) 106 107 //===----------------------------------------------------------------------===// 108 // Default target 109 //===----------------------------------------------------------------------===// 110 class DefaultCompilerConfig : public 111 #if defined(DEFAULT_ARM_CODEGEN) 112 ARMCompilerConfig 113 #elif defined(DEFAULT_MIPS_CODEGEN) 114 MipsCompilerConfig 115 #elif defined(DEFAULT_X86_CODEGEN) 116 X86_32CompilerConfig 117 #elif defined(DEFAULT_X86_64_CODEGEN) 118 X86_64CompilerConfig 119 #else 120 # error "Unsupported Default Target!" 121 #endif 122 { }; 123 124 } // end namespace bcc 125 126 #endif // BCC_SUPPORT_TARGET_COMPILER_CONFIGS_H 127