http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57637
--- Comment #4 from zhenqiang.chen at linaro dot org --- Root cause: For ARM, gcc might generate cond_exec insns before shrink-wrapping. But DF_LR_BB_INFO (bb)->def does not include def info from cond_exec insns. So the check in function move_insn_for_shrink_wrap is not enough. We'd check DF_LIVE_BB_INFO (bb)->gen. Kyrill, Please try the attached patch. If it works, I will send it for community review. Thanks! -Zhenqiang
