Use type info for the ToBoolean translation in crankshaft.

src/ia32/code-stubs-ia32.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 240 matching lines @@
   // undefined -> false
   CheckOddball(masm, UNDEFINED, factory->undefined_value(), false, &patch);
 
   // Boolean -> its value
   CheckOddball(masm, BOOLEAN, factory->false_value(), false, &patch);
   CheckOddball(masm, BOOLEAN, factory->true_value(), true, &patch);
 
   // 'null' -> false.
   CheckOddball(masm, NULL_TYPE, factory->null_value(), false, &patch);
 
-  bool need_map =
-      types_.Contains(SPEC_OBJECT) |
-      types_.Contains(STRING) |
-      types_.Contains(HEAP_NUMBER) |
-      types_.Contains(INTERNAL_OBJECT);
-
   if (types_.Contains(SMI)) {
     // Smis: 0 -> false, all other -> true
     Label not_smi;
     __ JumpIfNotSmi(argument, &not_smi, Label::kNear);
     // argument contains the correct return value already
     if (!tos_.is(argument)) {
       __ mov(tos_, argument);
     }
     __ ret(1 * kPointerSize);
     __ bind(&not_smi);
-  } else if (need_map) {
+  } else if (types_.NeedsMap()) {
     // If we need a map later and have a Smi -> patch.
     __ JumpIfSmi(argument, &patch, Label::kNear);
   }
 
-  if (need_map) {
+  if (types_.NeedsMap()) {
     __ mov(map, FieldOperand(argument, HeapObject::kMapOffset));
 
     // Everything with a map could be undetectable, so check this now.
     __ test_b(FieldOperand(map, Map::kBitFieldOffset),
               1 << Map::kIsUndetectable);
     // Undetectable -> false.
     Label not_undetectable;
     __ j(zero, &not_undetectable, Label::kNear);
     __ Set(tos_, Immediate(0));
     __ ret(1 * kPointerSize);
@@ skipping 6090 matching lines @@
   __ Drop(1);
   __ ret(2 * kPointerSize);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32