Why pass_if_after_reload pass delete USE instruction

mickael guene mickael.guene@st.com
Mon Feb 11 12:46:00 GMT 2013


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



More information about the Gcc-help mailing list