Andreas Krebbel wrote: > On 02/01/2016 02:45 PM, Ulrich Weigand wrote: > > So I'm wondering what the difference is between this and simply > > overriding the default implementation of "enabled" per-insn? > > > > So instead of adding > > (set_attr "disabled" "0,1")]) > > to an insn, you might simply add instead: > > (set_attr "enabled" "*,0")]) > Not sure but wouldn't this mean that the value of the enabled attribute would > then depend on the > order of the set_attr for "enabled" and "cpu_facility" since one is defined > on the value of the other?!
I don't think the order matches; genattrtab seems to first read in all .md files and only then optimize and then emit definitions of all the get_attr_... functions. The eq_attr uses in the "enabled" definition would only be evaluated at that point. Bye, Ulrich -- Dr. Ulrich Weigand GNU/Linux compilers and toolchain ulrich.weig...@de.ibm.com
