1 // Copyright 2011 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_CODEGEN_H_ 29 #define V8_CODEGEN_H_ 30 31 #include "code-stubs.h" 32 #include "runtime.h" 33 #include "type-info.h" 34 35 // Include the declaration of the architecture defined class CodeGenerator. 36 // The contract to the shared code is that the the CodeGenerator is a subclass 37 // of Visitor and that the following methods are available publicly: 38 // MakeCode 39 // MakeCodePrologue 40 // MakeCodeEpilogue 41 // masm 42 // frame 43 // script 44 // has_valid_frame 45 // SetFrame 46 // DeleteFrame 47 // allocator 48 // AddDeferred 49 // in_spilled_code 50 // set_in_spilled_code 51 // RecordPositions 52 // 53 // These methods are either used privately by the shared code or implemented as 54 // shared code: 55 // CodeGenerator 56 // ~CodeGenerator 57 // Generate 58 // ComputeLazyCompile 59 // BuildFunctionInfo 60 // ProcessDeclarations 61 // DeclareGlobals 62 // CheckForInlineRuntimeCall 63 // AnalyzeCondition 64 // CodeForFunctionPosition 65 // CodeForReturnPosition 66 // CodeForStatementPosition 67 // CodeForDoWhileConditionPosition 68 // CodeForSourcePosition 69 70 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF }; 71 72 #if V8_TARGET_ARCH_IA32 73 #include "ia32/codegen-ia32.h" 74 #elif V8_TARGET_ARCH_X64 75 #include "x64/codegen-x64.h" 76 #elif V8_TARGET_ARCH_ARM 77 #include "arm/codegen-arm.h" 78 #elif V8_TARGET_ARCH_MIPS 79 #include "mips/codegen-mips.h" 80 #else 81 #error Unsupported target architecture. 82 #endif 83 84 namespace v8 { 85 namespace internal { 86 87 // Results of the library implementation of transcendental functions may differ 88 // from the one we use in our generated code. Therefore we use the same 89 // generated code both in runtime and compiled code. 90 typedef double (*UnaryMathFunction)(double x); 91 92 UnaryMathFunction CreateTranscendentalFunction(TranscendentalCache::Type type); 93 UnaryMathFunction CreateSqrtFunction(); 94 95 96 class ElementsTransitionGenerator : public AllStatic { 97 public: 98 static void GenerateSmiOnlyToObject(MacroAssembler* masm); 99 static void GenerateSmiOnlyToDouble(MacroAssembler* masm, Label* fail); 100 static void GenerateDoubleToObject(MacroAssembler* masm, Label* fail); 101 102 private: 103 DISALLOW_COPY_AND_ASSIGN(ElementsTransitionGenerator); 104 }; 105 106 } } // namespace v8::internal 107 108 #endif // V8_CODEGEN_H_ 109