http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53046
--- Comment #7 from Chris Jefferson <chris at bubblescope dot net> 2012-04-23 09:57:12 UTC --- While I haven't yet got a recent copy of gcc trunk compiled, it does indeed look like an out-of-bounds error, but just a 'testsuite' problem. At the top of both mem_check tests as a 'const int A[]' array with 29 elements, which we read 30 elements of. If doesn't matter what the extra element is, we just want an array of any 30 integers, which is why this hasn't caused problems before.