[Bug testsuite/109549] [14/15 Regression] Conditional move regressions after r14-53-g675b1a7f113adb1d737adaf78b4fd90be7a0ed1a

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109549

--- Comment #17 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kong Lingling <kongl...@gcc.gnu.org>:

https://gcc.gnu.org/g:d826f7945609046f922732b138fb90795d5b1985

commit r15-313-gd826f7945609046f922732b138fb90795d5b1985
Author: konglin1 <lingling.k...@intel.com>
Date:   Wed May 8 15:46:10 2024 +0800

    x86: Fix cmov cost model issue [PR109549]

    (if_then_else:SI (eq (reg:CCZ 17 flags)
            (const_int 0 [0]))
        (reg/v:SI 101 [ e ])
        (reg:SI 102))
    The cost is 8 for the rtx, the cost for
    (eq (reg:CCZ 17 flags) (const_int 0 [0])) is 4,
    but this is just an operator do not need to compute it's cost in cmov.

    gcc/ChangeLog:

            PR target/109549
            * config/i386/i386.cc (ix86_rtx_costs): The XEXP (x, 0) for cmov
            is an operator do not need to compute cost.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/cmov6.c: Fixed.