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 29 #ifndef V8_MIPS_CODEGEN_MIPS_H_ 30 #define V8_MIPS_CODEGEN_MIPS_H_ 31 32 33 #include "ast.h" 34 #include "ic-inl.h" 35 36 namespace v8 { 37 namespace internal { 38 39 // Forward declarations 40 class CompilationInfo; 41 42 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF }; 43 44 // ------------------------------------------------------------------------- 45 // CodeGenerator 46 47 class CodeGenerator: public AstVisitor { 48 public: 49 CodeGenerator() { 50 InitializeAstVisitor(); 51 } 52 53 static bool MakeCode(CompilationInfo* info); 54 55 // Printing of AST, etc. as requested by flags. 56 static void MakeCodePrologue(CompilationInfo* info, const char* kind); 57 58 // Allocate and install the code. 59 static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm, 60 Code::Flags flags, 61 CompilationInfo* info); 62 63 // Print the code after compiling it. 64 static void PrintCode(Handle<Code> code, CompilationInfo* info); 65 66 static bool ShouldGenerateLog(Expression* type); 67 68 static void SetFunctionInfo(Handle<JSFunction> fun, 69 FunctionLiteral* lit, 70 bool is_toplevel, 71 Handle<Script> script); 72 73 static bool RecordPositions(MacroAssembler* masm, 74 int pos, 75 bool right_here = false); 76 77 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); 78 79 private: 80 DISALLOW_COPY_AND_ASSIGN(CodeGenerator); 81 }; 82 83 84 class StringCharLoadGenerator : public AllStatic { 85 public: 86 // Generates the code for handling different string types and loading the 87 // indexed character into |result|. We expect |index| as untagged input and 88 // |result| as untagged output. 89 static void Generate(MacroAssembler* masm, 90 Register string, 91 Register index, 92 Register result, 93 Label* call_runtime); 94 95 private: 96 DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator); 97 }; 98 99 100 class MathExpGenerator : public AllStatic { 101 public: 102 static void EmitMathExp(MacroAssembler* masm, 103 DoubleRegister input, 104 DoubleRegister result, 105 DoubleRegister double_scratch1, 106 DoubleRegister double_scratch2, 107 Register temp1, 108 Register temp2, 109 Register temp3); 110 111 private: 112 DISALLOW_COPY_AND_ASSIGN(MathExpGenerator); 113 }; 114 115 } } // namespace v8::internal 116 117 #endif // V8_MIPS_CODEGEN_MIPS_H_ 118