http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49423
--- Comment #14 from Dinar Temirbulatov <dtemirbulatov at gmail dot com> 2012-09-25 16:18:05 UTC --- (gdb) call debug_rtx(insn) (insn:TI 454 460 607 (set (reg:SI 2 r2 [orig:433 buf+2 ] [433]) (zero_extend:SI (mem/u/c/i:QI (symbol_ref/u:SI ("*.LC0") [flags 0x2]) [0 S1 A8]))) cr_parse-reduced.ii:111 168 {*arm_zero_extendqisi2_v6} (nil))