Contribution of PowerPC port.

test/cctest/test-strings.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 1380 matching lines @@
 
 #define INVALID_STRING_TEST(FUN, TYPE)                                         \
   TEST(StringOOM##FUN) {                                                       \
     CcTest::InitializeVM();                                                    \
     LocalContext context;                                                      \
     Isolate* isolate = CcTest::i_isolate();                                    \
     STATIC_ASSERT(String::kMaxLength < kMaxInt);                               \
     static const int invalid = String::kMaxLength + 1;                         \
     HandleScope scope(isolate);                                                \
     Vector<TYPE> dummy = Vector<TYPE>::New(invalid);                           \
+    memset(dummy.start(), 0x0, dummy.length() * sizeof(TYPE));                 \
     CHECK(isolate->factory()->FUN(Vector<const TYPE>::cast(dummy)).is_null()); \
     memset(dummy.start(), 0x20, dummy.length() * sizeof(TYPE));                \
     CHECK(isolate->has_pending_exception());                                   \
     isolate->clear_pending_exception();                                        \
     dummy.Dispose();                                                           \
   }
 
 INVALID_STRING_TEST(NewStringFromAscii, char)
 INVALID_STRING_TEST(NewStringFromUtf8, char)
 INVALID_STRING_TEST(NewStringFromOneByte, uint8_t)
 
 #undef INVALID_STRING_TEST