roll clang 159409:160702

base/process_util_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #define _CRT_SECURE_NO_WARNINGS
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 486 matching lines @@
           "(Terminating process due to a potential for future heap "
           "corruption){0}");
 
   base::debug::Alias(buf);
 }
 #endif  // !defined(ADDRESS_SANITIZER)
 
 TEST_F(ProcessUtilTest, MacTerminateOnHeapCorruption) {
   // Assert that freeing an unallocated pointer will crash the process.
   char buf[3];
+  asm("" : "=r" (buf));  // Prevent clang from being too smart.

[Mark Mentovai, 2012/07/28 02:09:25]

OK

 #if !defined(ADDRESS_SANITIZER)
   ASSERT_DEATH(free(buf), "being freed.*"
       "\\*\\*\\* set a breakpoint in malloc_error_break to debug.*"
       "Terminating process due to a potential for future heap corruption");
 #else
   // AddressSanitizer replaces malloc() and prints a different error message on
   // heap corruption.
   ASSERT_DEATH(free(buf), "attempting free on address which "
       "was not malloc\\(\\)-ed");
 #endif  // !defined(ADDRESS_SANITIZER)
@@ skipping 689 matching lines @@
       SetUpInDeathAssert();
       while ((value_ = base::AllocatePsychoticallyBigObjCObject())) {}
     }, "");
 }
 
 #endif  // !ARCH_CPU_64_BITS
 #endif  // OS_MACOSX
 
 #endif  // !defined(OS_ANDROID) && !defined(OS_OPENBSD) &&
         // !defined(OS_WIN) && !defined(ADDRESS_SANITIZER)