* Add code to check coverage of generated code on IA32 port....

src/macro-assembler-ia32.h

 // Copyright 2006-2008 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 325 matching lines @@
 
 
 // Generate an Operand for loading an indexed field from an object.
 static inline Operand FieldOperand(Register object,
                                    Register index,
                                    ScaleFactor scale,
                                    int offset) {
   return Operand(object, index, scale, offset - kHeapObjectTag);
 }
 
+
+#ifdef GENERATED_CODE_COVERAGE
+#define CODE_COVERAGE_STRINGIFY(x) #x
+#define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
+#define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
+extern byte* ia32_coverage_function;
+#define DEFINE_MASM(masm)                                        \
+  masm->pushfd();                                                \
+  masm->pushad();                                                \
+  masm->push(Immediate(reinterpret_cast<int>(&__FILE_LINE__)));  \
+  masm->call(ia32_coverage_function, RelocInfo::RUNTIME_ENTRY);  \
+  masm->pop(eax);                                                \
+  masm->popad();                                                 \
+  masm->popfd();                                                 \
+  masm->
+#else
+#define DEFINE_MASM(masm) masm->
+#endif
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_MACRO_ASSEMBLER_IA32_H_