Add inline caching for keyed loads and stores. Remove extra parentheses from...

src/x64/assembler-x64.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 609 matching lines @@
   void and_(Register dst, Immediate src) {
     immediate_arithmetic_op(0x4, dst, src);
   }
 
   void and_(const Operand& dst, Immediate src) {
     immediate_arithmetic_op(0x4, dst, src);
   }
 
   void decq(Register dst);
   void decq(const Operand& dst);
+  void decl(Register dst);
   void decl(const Operand& dst);
 
   // Sign-extends rax into rdx:rax.
   void cqo();
 
   // Divide rdx:rax by src.  Quotient in rax, remainder in rdx.
   void idiv(Register src);
 
   // Signed multiply instructions.
   void imul(Register src);                               // rdx:rax = rax * src.
@@ skipping 90 matching lines @@
   }
 
   void shr(Register dst) {
     shift(dst, 0x5);
   }
 
   void shrl(Register dst) {
     shift_32(dst, 0x5);
   }
 
+  void shrl(Register dst, Immediate shift_amount) {
+    shift_32(dst, shift_amount, 0x5);
+  }
+
   void store_rax(void* dst, RelocInfo::Mode mode);
   void store_rax(ExternalReference ref);
 
   void subq(Register dst, Register src) {
     arithmetic_op(0x2B, dst, src);
   }
 
   void subq(Register dst, const Operand& src) {
     arithmetic_op(0x2B, dst, src);
   }
@@ skipping 456 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_ASSEMBLER_X64_H_