1 //===-- llvm/Support/CodeGen.h - CodeGen Concepts ---------------*- 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 // This file define some types which define code generation concepts. For 11 // example, relocation model. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_SUPPORT_CODEGEN_H 16 #define LLVM_SUPPORT_CODEGEN_H 17 18 #include "llvm-c/TargetMachine.h" 19 #include "llvm/Support/ErrorHandling.h" 20 21 namespace llvm { 22 23 // Relocation model types. 24 namespace Reloc { 25 enum Model { Default, Static, PIC_, DynamicNoPIC }; 26 } 27 28 // Code model types. 29 namespace CodeModel { 30 enum Model { Default, JITDefault, Small, Kernel, Medium, Large }; 31 } 32 33 // TLS models. 34 namespace TLSModel { 35 enum Model { 36 GeneralDynamic, 37 LocalDynamic, 38 InitialExec, 39 LocalExec 40 }; 41 } 42 43 // Code generation optimization level. 44 namespace CodeGenOpt { 45 enum Level { 46 None, // -O0 47 Less, // -O1 48 Default, // -O2, -Os 49 Aggressive // -O3 50 }; 51 } 52 53 // Create wrappers for C Binding types (see CBindingWrapping.h). 54 inline CodeModel::Model unwrap(LLVMCodeModel Model) { 55 switch (Model) { 56 case LLVMCodeModelDefault: 57 return CodeModel::Default; 58 case LLVMCodeModelJITDefault: 59 return CodeModel::JITDefault; 60 case LLVMCodeModelSmall: 61 return CodeModel::Small; 62 case LLVMCodeModelKernel: 63 return CodeModel::Kernel; 64 case LLVMCodeModelMedium: 65 return CodeModel::Medium; 66 case LLVMCodeModelLarge: 67 return CodeModel::Large; 68 } 69 return CodeModel::Default; 70 } 71 72 inline LLVMCodeModel wrap(CodeModel::Model Model) { 73 switch (Model) { 74 case CodeModel::Default: 75 return LLVMCodeModelDefault; 76 case CodeModel::JITDefault: 77 return LLVMCodeModelJITDefault; 78 case CodeModel::Small: 79 return LLVMCodeModelSmall; 80 case CodeModel::Kernel: 81 return LLVMCodeModelKernel; 82 case CodeModel::Medium: 83 return LLVMCodeModelMedium; 84 case CodeModel::Large: 85 return LLVMCodeModelLarge; 86 } 87 llvm_unreachable("Bad CodeModel!"); 88 } 89 } // end llvm namespace 90 91 #endif 92
