http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49423
--- Comment #16 from Dinar Temirbulatov <dtemirbulatov at gmail dot com> 2012-10-11 09:11:27 UTC --- this regression after PR43137, also absence of pool range predicates for arm_zero_extendqisi2, arm_zero_extendqisi2_v6, arm_zero_extendhisi2, arm_zero_extendhisi2_v6 caused gcc.c-torture/compile/920928-2.c to fail with ICE by using -Os flag.