[Bug tree-optimization/53640] Missed cmove with stores

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53640

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-12 
09:29:10 UTC ---
cond_if_else_store_replacement should do this, thus cselim.  But you need
-O3 as otherwise --param max-stores-to-sink is zero:

  /* Set PARAM_MAX_STORES_TO_SINK to 0 if either vectorization or if-conversion
     is disabled.  */
  if (!opts->x_flag_tree_vectorize || !opts->x_flag_tree_loop_if_convert)
    maybe_set_param_value (PARAM_MAX_STORES_TO_SINK, 0,
                           opts->x_param_values, opts_set->x_param_values);