Basic support for tracking smi-only arrays on ia32.

src/hydrogen-instructions.cc

 // Copyright 2011 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 1470 matching lines @@
     case EXTERNAL_FLOAT_ELEMENTS:
       stream->Add("float");
       break;
     case EXTERNAL_DOUBLE_ELEMENTS:
       stream->Add("double");
       break;
     case EXTERNAL_PIXEL_ELEMENTS:
       stream->Add("pixel");
       break;
     case FAST_ELEMENTS:
+    case FAST_SMI_ONLY_ELEMENTS:
     case FAST_DOUBLE_ELEMENTS:
     case DICTIONARY_ELEMENTS:
     case NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }
   stream->Add("[");
   key()->PrintNameTo(stream);
   stream->Add("]");
 }
@@ skipping 74 matching lines @@
       break;
     case EXTERNAL_FLOAT_ELEMENTS:
       stream->Add("float");
       break;
     case EXTERNAL_DOUBLE_ELEMENTS:
       stream->Add("double");
       break;
     case EXTERNAL_PIXEL_ELEMENTS:
       stream->Add("pixel");
       break;
+    case FAST_SMI_ONLY_ELEMENTS:
     case FAST_ELEMENTS:
     case FAST_DOUBLE_ELEMENTS:
     case DICTIONARY_ELEMENTS:
     case NON_STRICT_ARGUMENTS_ELEMENTS:
       UNREACHABLE();
       break;
   }
   stream->Add("[");
   key()->PrintNameTo(stream);
   stream->Add("] = ");
@@ skipping 290 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal