[Bug target/115749] Non optimal assembly for integer modulo by a constant on x86-64 CPUs

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115749

--- Comment #13 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kong Lingling <konglin1@gcc.gnu.org>:

https://gcc.gnu.org/g:bc00de070f0b9a25f68ffddbefe516543a44bd23

commit r15-2295-gbc00de070f0b9a25f68ffddbefe516543a44bd23
Author: Lingling Kong <lingling.kong@intel.com>
Date:   Thu Jul 25 09:42:06 2024 +0800

    i386: Adjust rtx cost for imulq and imulw [PR115749]

    gcc/ChangeLog:

            PR target/115749
            * config/i386/x86-tune-costs.h (struct processor_costs):
            Adjust rtx_cost of imulq and imulw for COST_N_INSNS (4)
            to COST_N_INSNS (3).

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr115749.c: New test.