Add missing instructions to the IA-32 disasembler...

src/ia32/codegen-ia32.cc

 // Copyright 2006-2009 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 9619 matching lines @@
 
   // Just jump to runtime to create the sub string.
   __ bind(&runtime);
   __ TailCallRuntime(ExternalReference(Runtime::kSubString), 3, 1);
 }
 
 
 void StringCompareStub::GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
                                                         Register left,
                                                         Register right,
-                                                        Register counter,
                                                         Register scratch1,
-                                                        Register scratch2) {
-  ASSERT(counter.is(ecx));
+                                                        Register scratch2,
+                                                        Register scratch3) {
   Label compare_lengths, compare_lengths_1;
 
   // Find minimum length. If either length is zero just compare lengths.
-  __ mov(counter, FieldOperand(left, String::kLengthOffset));
-  __ test(counter, Operand(counter));
-  __ j(zero, &compare_lengths_1);
-  __ mov(scratch1, FieldOperand(right, String::kLengthOffset));
+  __ mov(scratch1, FieldOperand(left, String::kLengthOffset));
   __ test(scratch1, Operand(scratch1));
   __ j(zero, &compare_lengths_1);
-  __ cmp(counter, Operand(scratch1));
+  __ mov(scratch2, FieldOperand(right, String::kLengthOffset));
+  __ test(scratch2, Operand(scratch2));
+  __ j(zero, &compare_lengths_1);
+  __ cmp(scratch1, Operand(scratch2));
   if (CpuFeatures::IsSupported(CMOV)) {
     CpuFeatures::Scope use_cmov(CMOV);
-    __ cmov(greater, counter, Operand(scratch1));
+    __ cmov(greater, scratch1, Operand(scratch2));
   } else {
     Label l;
     __ j(less, &l);
-    __ mov(counter, scratch1);
+    __ mov(scratch1, scratch2);
     __ bind(&l);
   }
 
   Label result_greater, result_less;
   Label loop;
   // Compare next character.
-  __ mov(scratch2, Immediate(-1));  // Index into strings.
+  __ mov(scratch3, Immediate(-1));  // Index into strings.
   __ bind(&loop);
   // Compare characters.
-  __ add(Operand(scratch2), Immediate(1));
-  __ mov_b(scratch1, Operand(left,
-                             scratch2,
+  Label character_compare_done;
+  __ add(Operand(scratch3), Immediate(1));
+  __ mov_b(scratch2, Operand(left,
+                             scratch3,
                              times_1,
                              SeqAsciiString::kHeaderSize - kHeapObjectTag));
-  __ subb(scratch1, Operand(right,
-                            scratch2,
+  __ subb(scratch2, Operand(right,
+                            scratch3,
                             times_1,
                             SeqAsciiString::kHeaderSize - kHeapObjectTag));
-  __ loope(&loop);
+  __ j(not_equal, &character_compare_done);
+  __ sub(Operand(scratch1), Immediate(1));
+  __ j(not_zero, &loop);
   // If min length characters match compare lengths otherwise last character
   // compare is the result.
+  __ bind(&character_compare_done);
   __ j(equal, &compare_lengths);
   __ j(less, &result_less);
   __ jmp(&result_greater);
 
   // Compare lengths.
   Label result_not_equal;
   __ bind(&compare_lengths);
-  __ mov(counter, FieldOperand(left, String::kLengthOffset));
+  __ mov(scratch1, FieldOperand(left, String::kLengthOffset));
   __ bind(&compare_lengths_1);
-  __ sub(counter, FieldOperand(right, String::kLengthOffset));
+  __ sub(scratch1, FieldOperand(right, String::kLengthOffset));
   __ j(not_zero, &result_not_equal);
 
   // Result is EQUAL.
   ASSERT_EQ(0, EQUAL);
   ASSERT_EQ(0, kSmiTag);
   __ xor_(eax, Operand(eax));
   __ IncrementCounter(&Counters::string_compare_native, 1);
   __ ret(2 * kPointerSize);
   __ bind(&result_not_equal);
   __ j(greater, &result_greater);
@@ skipping 65 matching lines @@
 
   // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater)
   // tagged as a small integer.
   __ bind(&runtime);
   __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1);
 }
 
 #undef __
 
 } }  // namespace v8::internal