http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57736
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-06-27
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30397
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30397&action=edit
gcc49-pr57736.patch
Untested fix. If target == NULL and mode == VOIDmode, then this is a return
value ignored call. Some of the calls like __builtin_nanq etc. are const and
thus will be optimized away even at -O0 when lhs is missing, but as rdtsc{,p}
and rdpmc aren't const/pure, they are kept.
