Change the algorithm and generated code for parallel moves on IA32.

src/ia32/lithium-codegen-ia32.h

 // Copyright 2011 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
@@ skipping 16 matching lines @@
 
 #ifndef V8_IA32_LITHIUM_CODEGEN_IA32_H_
 #define V8_IA32_LITHIUM_CODEGEN_IA32_H_
 
 #include "ia32/lithium-ia32.h"
 
 #include "checks.h"
 #include "deoptimizer.h"
 #include "safepoint-table.h"
 #include "scopes.h"
+#include "ia32/lithium-gap-resolver-ia32.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class LDeferredCode;
 class LGapNode;
 class SafepointGenerator;
 
 class LGapResolver BASE_EMBEDDED {
@@ skipping 26 matching lines @@
         info_(info),
         current_block_(-1),
         current_instruction_(-1),
         instructions_(chunk->instructions()),
         deoptimizations_(4),
         deoptimization_literals_(8),
         inlined_function_count_(0),
         scope_(chunk->graph()->info()->scope()),
         status_(UNUSED),
         deferred_(8),
-        osr_pc_offset_(-1) {
+        osr_pc_offset_(-1),
+        resolver_(this) {
     PopulateDeoptimizationLiteralsWithInlinedFunctions();
   }
 
+  // Simple accessors.
+  MacroAssembler* masm() const { return masm_; }
+
+  // Support for converting LOperands to assembler types.
+  Operand ToOperand(LOperand* op) const;
+  Register ToRegister(LOperand* op) const;
+  XMMRegister ToDoubleRegister(LOperand* op) const;
+  Immediate ToImmediate(LOperand* op);
+
   // Try to generate code for the entire chunk, but it may fail if the
   // chunk contains constructs we cannot handle. Returns true if the
   // code generation attempt succeeded.
   bool GenerateCode();
 
   // Finish the code by setting stack height, safepoint, and bailout
   // information on it.
   void FinishCode(Handle<Code> code);
 
   // Deferred code support.
@@ skipping 25 matching lines @@
   };
 
   bool is_unused() const { return status_ == UNUSED; }
   bool is_generating() const { return status_ == GENERATING; }
   bool is_done() const { return status_ == DONE; }
   bool is_aborted() const { return status_ == ABORTED; }
 
   LChunk* chunk() const { return chunk_; }
   Scope* scope() const { return scope_; }
   HGraph* graph() const { return chunk_->graph(); }
-  MacroAssembler* masm() const { return masm_; }
 
   int GetNextEmittedBlock(int block);
   LInstruction* GetNextInstruction();
 
   void EmitClassOfTest(Label* if_true,
                        Label* if_false,
                        Handle<String> class_name,
                        Register input,
                        Register temporary,
                        Register temporary2);
@@ skipping 41 matching lines @@
   void AddToTranslation(Translation* translation,
                         LOperand* op,
                         bool is_tagged);
   void PopulateDeoptimizationData(Handle<Code> code);
   int DefineDeoptimizationLiteral(Handle<Object> literal);
 
   void PopulateDeoptimizationLiteralsWithInlinedFunctions();
 
   Register ToRegister(int index) const;
   XMMRegister ToDoubleRegister(int index) const;
-  Register ToRegister(LOperand* op) const;
-  XMMRegister ToDoubleRegister(LOperand* op) const;
   int ToInteger32(LConstantOperand* op) const;
-  Operand ToOperand(LOperand* op) const;
-  Immediate ToImmediate(LOperand* op);
 
   // Specific math operations - used from DoUnaryMathOperation.
   void DoMathAbs(LUnaryMathOperation* instr);
   void DoMathFloor(LUnaryMathOperation* instr);
   void DoMathRound(LUnaryMathOperation* instr);
   void DoMathSqrt(LUnaryMathOperation* instr);
   void DoMathPowHalf(LUnaryMathOperation* instr);
   void DoMathLog(LUnaryMathOperation* instr);
   void DoMathCos(LUnaryMathOperation* instr);
   void DoMathSin(LUnaryMathOperation* instr);
@@ skipping 77 matching lines @@
  private:
   LCodeGen* codegen_;
   Label entry_;
   Label exit_;
   Label* external_exit_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_LITHIUM_CODEGEN_IA32_H_