Add tool to visualize machine code/lithium.

src/codegen.cc

 // Copyright 2012 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 116 matching lines @@
 #ifdef ENABLE_DISASSEMBLER
   AllowDeferredHandleDereference allow_deference_for_print_code;
   bool print_code = info->isolate()->bootstrapper()->IsActive()
       ? FLAG_print_builtin_code
       : (FLAG_print_code ||
          (info->IsStub() && FLAG_print_code_stubs) ||
          (info->IsOptimizing() && FLAG_print_opt_code));
   if (print_code) {
     // Print the source code if available.
     FunctionLiteral* function = info->function();
-    if (code->kind() == Code::OPTIMIZED_FUNCTION) {
+    bool print_source = code->kind() == Code::OPTIMIZED_FUNCTION ||
+      code->kind() == Code::FUNCTION;

[Michael Starzinger, 2013/10/18 13:04:21]

nit: Indentation is off.

[danno, 2013/10/19 17:11:40]

Done.

+    if (print_source) {
       Handle<Script> script = info->script();
       if (!script->IsUndefined() && !script->source()->IsUndefined()) {
         PrintF("--- Raw source ---\n");
         ConsStringIteratorOp op;
         StringCharacterStream stream(String::cast(script->source()),
                                      &op,
                                      function->start_position());
         // fun->end_position() points to the last character in the stream. We
         // need to compensate by adding one to calculate the length.
         int source_len =
             function->end_position() - function->start_position() + 1;
         for (int i = 0; i < source_len; i++) {
           if (stream.HasMore()) PrintF("%c", stream.GetNext());
         }
         PrintF("\n\n");
       }
     }
     if (info->IsOptimizing()) {
       if (FLAG_print_unopt_code) {
         PrintF("--- Unoptimized code ---\n");
         info->closure()->shared()->code()->Disassemble(
             *function->debug_name()->ToCString());
       }
       PrintF("--- Optimized code ---\n");
     } else {
       PrintF("--- Code ---\n");
     }
+    if (print_source) {
+      PrintF("source_position = %d\n", function->start_position());
+    }
     if (info->IsStub()) {
       CodeStub::Major major_key = info->code_stub()->MajorKey();
       code->Disassemble(CodeStub::MajorName(major_key, false));
     } else {
       code->Disassemble(*function->debug_name()->ToCString());
     }
+    PrintF("--- End code ---\n");
   }
 #endif  // ENABLE_DISASSEMBLER
 }
 
 
 bool CodeGenerator::ShouldGenerateLog(Isolate* isolate, Expression* type) {
   ASSERT(type != NULL);
   if (!isolate->logger()->is_logging() &&
       !isolate->cpu_profiler()->is_profiling()) {
     return false;
@@ skipping 44 matching lines @@
   ASSERT(result_size_ == 1 || result_size_ == 2);
 #ifdef _WIN64
   return result | ((result_size_ == 1) ? 0 : 2);
 #else
   return result;
 #endif
 }
 
 
 } }  // namespace v8::internal