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      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_ARM_CODEGEN_ARM_H_
     29 #define V8_ARM_CODEGEN_ARM_H_
     30 
     31 #include "ast.h"
     32 #include "ic-inl.h"
     33 
     34 namespace v8 {
     35 namespace internal {
     36 
     37 // Forward declarations
     38 class CompilationInfo;
     39 
     40 enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
     41 
     42 // -------------------------------------------------------------------------
     43 // CodeGenerator
     44 
     45 class CodeGenerator: public AstVisitor {
     46  public:
     47   CodeGenerator() {
     48     InitializeAstVisitor();
     49   }
     50 
     51   static bool MakeCode(CompilationInfo* info);
     52 
     53   // Printing of AST, etc. as requested by flags.
     54   static void MakeCodePrologue(CompilationInfo* info, const char* kind);
     55 
     56   // Allocate and install the code.
     57   static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
     58                                        Code::Flags flags,
     59                                        CompilationInfo* info);
     60 
     61   // Print the code after compiling it.
     62   static void PrintCode(Handle<Code> code, CompilationInfo* info);
     63 
     64   static bool ShouldGenerateLog(Expression* type);
     65 
     66   static void SetFunctionInfo(Handle<JSFunction> fun,
     67                               FunctionLiteral* lit,
     68                               bool is_toplevel,
     69                               Handle<Script> script);
     70 
     71   static bool RecordPositions(MacroAssembler* masm,
     72                               int pos,
     73                               bool right_here = false);
     74 
     75   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
     76 
     77  private:
     78   DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
     79 };
     80 
     81 
     82 class StringCharLoadGenerator : public AllStatic {
     83  public:
     84   // Generates the code for handling different string types and loading the
     85   // indexed character into |result|.  We expect |index| as untagged input and
     86   // |result| as untagged output.
     87   static void Generate(MacroAssembler* masm,
     88                        Register string,
     89                        Register index,
     90                        Register result,
     91                        Label* call_runtime);
     92 
     93  private:
     94   DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
     95 };
     96 
     97 
     98 class MathExpGenerator : public AllStatic {
     99  public:
    100   static void EmitMathExp(MacroAssembler* masm,
    101                           DwVfpRegister input,
    102                           DwVfpRegister result,
    103                           DwVfpRegister double_scratch1,
    104                           DwVfpRegister double_scratch2,
    105                           Register temp1,
    106                           Register temp2,
    107                           Register temp3);
    108 
    109  private:
    110   DISALLOW_COPY_AND_ASSIGN(MathExpGenerator);
    111 };
    112 
    113 } }  // namespace v8::internal
    114 
    115 #endif  // V8_ARM_CODEGEN_ARM_H_
    116