fixed an issue with optimizing and dumping...

src/main.cpp

@@ -187,17 +187,25 @@ int __cdecl main( int argc, const char *argv[] )
 
     if ( parser.exists( "devirt" ) )
     {
-        vtil::basic_block *rtn = nullptr;
+        vtil::basic_block *rtn = nullptr, *first = nullptr;
         for ( auto [ code_block, code_block_num ] = std::tuple{ first_block, 0u };
               code_block_num < file_header->code_block_count;
               code_block = reinterpret_cast< vmp2::v3::code_block_t * >(
                   reinterpret_cast< std::uintptr_t >( code_block ) + code_block->next_block_offset ),
                                                 ++code_block_num )
         {
-            rtn = rtn ? rtn->fork(
-                            ABS_TO_IMG( code_block->vip_begin, file_header->module_base, file_header->image_base ) )
-                      : vtil::basic_block::begin(
+            if ( !rtn )
+            {
+                rtn = vtil::basic_block::begin(
                     ABS_TO_IMG( code_block->vip_begin, file_header->module_base, file_header->image_base ) );
+            }
+            else
+            {
+                first = rtn;
+
+                rtn =
+                    rtn->fork( ABS_TO_IMG( code_block->vip_begin, file_header->module_base, file_header->image_base ) );
+            }
 
             for ( auto idx = 0u; idx < code_block->vinstr_count; ++idx )
             {
@@ -235,8 +243,8 @@ int __cdecl main( int argc, const char *argv[] )
             }
         }
 
-        vtil::optimizer::apply_all( rtn );
-        vtil::debug::dump( rtn );
+        vtil::optimizer::apply_all( first );
+        vtil::debug::dump( first );
         return {};
     }