Hello all, cond_exec_process_insns() call during pass_if_after_reload pass will remove USE instruction from instruction list. In my case it will remove a piece of need code. Is somebody know why USE instruction are removed ? and if it's safe to to this ? I was able to find original commit for this code from http://gcc.gnu.org/ml/gcc-patches/2000-05/msg00882.html. Mickael