Add generated code for ascii string comparison...

src/ia32/assembler-ia32.cc

 // 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 1189 matching lines @@
 
 
 void Assembler::sub(Register dst, const Operand& src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   EMIT(0x2B);
   emit_operand(dst, src);
 }
 
 
+void Assembler::subb(Register dst, const Operand& src) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  EMIT(0x2A);
+  emit_operand(dst, src);
+}
+
+
 void Assembler::sub(const Operand& dst, Register src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   EMIT(0x29);
   emit_operand(src, dst);
 }
 
 
 void Assembler::test(Register reg, const Immediate& imm) {
   EnsureSpace ensure_space(this);
@@ skipping 365 matching lines @@
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   if (FLAG_emit_branch_hints && hint != no_hint) EMIT(hint);
   // 0000 1111 1000 tttn #32-bit disp
   EMIT(0x0F);
   EMIT(0x80 | cc);
   emit(reinterpret_cast<intptr_t>(code.location()), RelocInfo::CODE_TARGET);
 }
 
 
+void Assembler::loope(Label* L) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  // Only short backward jumps.
+  ASSERT(L->is_bound());
+  int offs = L->pos() - pc_offset();
+  const int kLoopInstructionSize = 2;
+  ASSERT(is_int8(offs - kLoopInstructionSize));
+  EMIT(0xE1);
+  EMIT((offs - kLoopInstructionSize) & 0xFF);
+}
+
 // FPU instructions
 
 
 void Assembler::fld(int i) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_farith(0xD9, 0xC0, i);
 }
 
 
@@ skipping 751 matching lines @@
   push_insn[1] = 13;    // Skip over coverage insns.
   if (coverage_log != NULL) {
     fprintf(coverage_log, "%s\n", file_line);
     fflush(coverage_log);
   }
 }
 
 #endif
 
 } }  // namespace v8::internal