http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402
--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-10-16 14:42:32 UTC --- Another example is math/test-tgmath2.c from glibc. (after compiling for 1:40 minutes): test-tgmath2.c: In function ‘test’: test-tgmath2.c:93:1: note: variable tracking size limit exceeded with -fvar-tracking-assignments, retrying without test (const int Vint4, const long long int Vllong4) ^ test-tgmath2.c:93:1: note: variable tracking size limit exceeded