x64: Implement regexp literals and string CharCodeAt in lithium backend.

src/ia32/assembler-ia32.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 166 matching lines @@
 const XMMRegister xmm4 = { 4 };
 const XMMRegister xmm5 = { 5 };
 const XMMRegister xmm6 = { 6 };
 const XMMRegister xmm7 = { 7 };
 
 
 typedef XMMRegister DoubleRegister;
 
 
 // Index of register used in pusha/popa.
-// Order of pushed registers: EAX, ECX, EDX, EBX, ESP, EBP, ESI, and EDI
+// Order of pushed registers: eax, ecx, edx, ebx, esp, ebp, esi, and edi.
 inline int EspIndexForPushAll(Register reg) {
   return Register::kNumRegisters - 1 - reg.code();
 }
 
 
 enum Condition {
   // any value < 0 is considered no_condition
   no_condition  = -1,
 
   overflow      =  0,
@@ skipping 889 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_ASSEMBLER_IA32_H_