Update to V8 with partial snapshots. This is taken from the partial_snapshot branch of V8.
diff --git a/src/mips/codegen-mips.h b/src/mips/codegen-mips.h
new file mode 100644
index 0000000..05138bc
--- /dev/null
+++ b/src/mips/codegen-mips.h
@@ -0,0 +1,311 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+#ifndef V8_MIPS_CODEGEN_MIPS_H_
+#define V8_MIPS_CODEGEN_MIPS_H_
+
+namespace v8 {
+namespace internal {
+
+// Forward declarations
+class CompilationInfo;
+class DeferredCode;
+class RegisterAllocator;
+class RegisterFile;
+
+enum InitState { CONST_INIT, NOT_CONST_INIT };
+enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
+
+
+// -------------------------------------------------------------------------
+// Code generation state
+
+// The state is passed down the AST by the code generator (and back up, in
+// the form of the state of the label pair). It is threaded through the
+// call stack. Constructing a state implicitly pushes it on the owning code
+// generator's stack of states, and destroying one implicitly pops it.
+
+class CodeGenState BASE_EMBEDDED {
+ public:
+ // Create an initial code generator state. Destroying the initial state
+ // leaves the code generator with a NULL state.
+ explicit CodeGenState(CodeGenerator* owner);
+
+ // Create a code generator state based on a code generator's current
+ // state. The new state has its own typeof state and pair of branch
+ // labels.
+ CodeGenState(CodeGenerator* owner,
+ JumpTarget* true_target,
+ JumpTarget* false_target);
+
+ // Destroy a code generator state and restore the owning code generator's
+ // previous state.
+ ~CodeGenState();
+
+ TypeofState typeof_state() const { return typeof_state_; }
+ JumpTarget* true_target() const { return true_target_; }
+ JumpTarget* false_target() const { return false_target_; }
+
+ private:
+ // The owning code generator.
+ CodeGenerator* owner_;
+
+ // A flag indicating whether we are compiling the immediate subexpression
+ // of a typeof expression.
+ TypeofState typeof_state_;
+
+ JumpTarget* true_target_;
+ JumpTarget* false_target_;
+
+ // The previous state of the owning code generator, restored when
+ // this state is destroyed.
+ CodeGenState* previous_;
+};
+
+
+
+// -------------------------------------------------------------------------
+// CodeGenerator
+
+class CodeGenerator: public AstVisitor {
+ public:
+ // Compilation mode. Either the compiler is used as the primary
+ // compiler and needs to setup everything or the compiler is used as
+ // the secondary compiler for split compilation and has to handle
+ // bailouts.
+ enum Mode {
+ PRIMARY,
+ SECONDARY
+ };
+
+ // Takes a function literal, generates code for it. This function should only
+ // be called by compiler.cc.
+ static Handle<Code> MakeCode(CompilationInfo* info);
+
+ // Printing of AST, etc. as requested by flags.
+ static void MakeCodePrologue(CompilationInfo* info);
+
+ // Allocate and install the code.
+ static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
+ Code::Flags flags,
+ CompilationInfo* info);
+
+#ifdef ENABLE_LOGGING_AND_PROFILING
+ static bool ShouldGenerateLog(Expression* type);
+#endif
+
+ static void SetFunctionInfo(Handle<JSFunction> fun,
+ FunctionLiteral* lit,
+ bool is_toplevel,
+ Handle<Script> script);
+
+ static void RecordPositions(MacroAssembler* masm, int pos);
+
+ // Accessors
+ MacroAssembler* masm() { return masm_; }
+ VirtualFrame* frame() const { return frame_; }
+ inline Handle<Script> script();
+
+ bool has_valid_frame() const { return frame_ != NULL; }
+
+ // Set the virtual frame to be new_frame, with non-frame register
+ // reference counts given by non_frame_registers. The non-frame
+ // register reference counts of the old frame are returned in
+ // non_frame_registers.
+ void SetFrame(VirtualFrame* new_frame, RegisterFile* non_frame_registers);
+
+ void DeleteFrame();
+
+ RegisterAllocator* allocator() const { return allocator_; }
+
+ CodeGenState* state() { return state_; }
+ void set_state(CodeGenState* state) { state_ = state; }
+
+ void AddDeferred(DeferredCode* code) { deferred_.Add(code); }
+
+ static const int kUnknownIntValue = -1;
+
+ // Number of instructions used for the JS return sequence. The constant is
+ // used by the debugger to patch the JS return sequence.
+ static const int kJSReturnSequenceLength = 6;
+
+ private:
+ // Construction/Destruction.
+ explicit CodeGenerator(MacroAssembler* masm);
+ virtual ~CodeGenerator() { delete masm_; }
+
+ // Accessors.
+ inline bool is_eval();
+ Scope* scope() const { return scope_; }
+
+ // Generating deferred code.
+ void ProcessDeferred();
+
+ // State
+ bool has_cc() const { return cc_reg_ != cc_always; }
+ TypeofState typeof_state() const { return state_->typeof_state(); }
+ JumpTarget* true_target() const { return state_->true_target(); }
+ JumpTarget* false_target() const { return state_->false_target(); }
+
+ // We don't track loop nesting level on mips yet.
+ int loop_nesting() const { return 0; }
+
+ // Node visitors.
+ void VisitStatements(ZoneList<Statement*>* statements);
+
+#define DEF_VISIT(type) \
+ void Visit##type(type* node);
+ AST_NODE_LIST(DEF_VISIT)
+#undef DEF_VISIT
+
+ // Main code generation function
+ void Generate(CompilationInfo* info, Mode mode);
+
+ struct InlineRuntimeLUT {
+ void (CodeGenerator::*method)(ZoneList<Expression*>*);
+ const char* name;
+ };
+
+ static InlineRuntimeLUT* FindInlineRuntimeLUT(Handle<String> name);
+ bool CheckForInlineRuntimeCall(CallRuntime* node);
+ static bool PatchInlineRuntimeEntry(Handle<String> name,
+ const InlineRuntimeLUT& new_entry,
+ InlineRuntimeLUT* old_entry);
+
+ static Handle<Code> ComputeLazyCompile(int argc);
+ void ProcessDeclarations(ZoneList<Declaration*>* declarations);
+
+ Handle<Code> ComputeCallInitialize(int argc, InLoopFlag in_loop);
+
+ // Declare global variables and functions in the given array of
+ // name/value pairs.
+ void DeclareGlobals(Handle<FixedArray> pairs);
+
+ // Support for type checks.
+ void GenerateIsSmi(ZoneList<Expression*>* args);
+ void GenerateIsNonNegativeSmi(ZoneList<Expression*>* args);
+ void GenerateIsArray(ZoneList<Expression*>* args);
+
+ // Support for construct call checks.
+ void GenerateIsConstructCall(ZoneList<Expression*>* args);
+
+ // Support for arguments.length and arguments[?].
+ void GenerateArgumentsLength(ZoneList<Expression*>* args);
+ void GenerateArgumentsAccess(ZoneList<Expression*>* args);
+
+ // Support for accessing the class and value fields of an object.
+ void GenerateClassOf(ZoneList<Expression*>* args);
+ void GenerateValueOf(ZoneList<Expression*>* args);
+ void GenerateSetValueOf(ZoneList<Expression*>* args);
+
+ // Fast support for charCodeAt(n).
+ void GenerateFastCharCodeAt(ZoneList<Expression*>* args);
+
+ // Fast support for object equality testing.
+ void GenerateObjectEquals(ZoneList<Expression*>* args);
+
+ void GenerateLog(ZoneList<Expression*>* args);
+
+ // Fast support for Math.random().
+ void GenerateRandomPositiveSmi(ZoneList<Expression*>* args);
+
+ void GenerateIsObject(ZoneList<Expression*>* args);
+ void GenerateIsFunction(ZoneList<Expression*>* args);
+ void GenerateIsUndetectableObject(ZoneList<Expression*>* args);
+ void GenerateStringAdd(ZoneList<Expression*>* args);
+ void GenerateSubString(ZoneList<Expression*>* args);
+ void GenerateStringCompare(ZoneList<Expression*>* args);
+ void GenerateRegExpExec(ZoneList<Expression*>* args);
+
+ // Fast support for Math.sin and Math.cos.
+ inline void GenerateMathSin(ZoneList<Expression*>* args);
+ inline void GenerateMathCos(ZoneList<Expression*>* args);
+
+ // Simple condition analysis.
+ enum ConditionAnalysis {
+ ALWAYS_TRUE,
+ ALWAYS_FALSE,
+ DONT_KNOW
+ };
+ ConditionAnalysis AnalyzeCondition(Expression* cond);
+
+ // Methods used to indicate which source code is generated for. Source
+ // positions are collected by the assembler and emitted with the relocation
+ // information.
+ void CodeForFunctionPosition(FunctionLiteral* fun);
+ void CodeForReturnPosition(FunctionLiteral* fun);
+ void CodeForStatementPosition(Statement* node);
+ void CodeForDoWhileConditionPosition(DoWhileStatement* stmt);
+ void CodeForSourcePosition(int pos);
+
+#ifdef DEBUG
+ // True if the registers are valid for entry to a block.
+ bool HasValidEntryRegisters();
+#endif
+
+ bool is_eval_; // Tells whether code is generated for eval.
+
+ Handle<Script> script_;
+ List<DeferredCode*> deferred_;
+
+ // Assembler
+ MacroAssembler* masm_; // to generate code
+
+ CompilationInfo* info_;
+
+ // Code generation state
+ Scope* scope_;
+ VirtualFrame* frame_;
+ RegisterAllocator* allocator_;
+ Condition cc_reg_;
+ CodeGenState* state_;
+
+ // Jump targets
+ BreakTarget function_return_;
+
+ // True if the function return is shadowed (ie, jumping to the target
+ // function_return_ does not jump to the true function return, but rather
+ // to some unlinking code).
+ bool function_return_is_shadowed_;
+
+ static InlineRuntimeLUT kInlineRuntimeLUT[];
+
+ friend class VirtualFrame;
+ friend class JumpTarget;
+ friend class Reference;
+ friend class FastCodeGenerator;
+ friend class FullCodeGenSyntaxChecker;
+
+ DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
+};
+
+
+} } // namespace v8::internal
+
+#endif // V8_MIPS_CODEGEN_MIPS_H_
+