[Bug target/81616] Update -mtune=generic for the current Intel and AMD processors

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81616

--- Comment #41 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Tue Jan  2 09:31:47 2018
New Revision: 256070

URL: https://gcc.gnu.org/viewcvs?rev=256070&root=gcc&view=rev
Log:

        PR target/81616
        * x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
        cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
        and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
        cond_taken_branch_cost 3->4.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/x86-tune-costs.h