[Bug target/100445] [12 Regression] ice during RTL pass: vregs

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100445

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>:

https://gcc.gnu.org/g:92f372f00936a549de2cb9764eee722bb07959ba

commit r12-583-g92f372f00936a549de2cb9764eee722bb07959ba
Author: Uros Bizjak <ubiz...@gmail.com>
Date:   Fri May 7 11:15:07 2021 +0200

    i386: Do not emit mask compares for mode sizes < 16 [PR100445]

    Recent addition of v*cond* patterns for MMXMODEI modes allows 64bit MMX
    modes to enter ix86_expand_sse_cmp. ix86_use_mask_cmp_p was not prepared
    to reject mode sizes < 16, resulting in ICE due to unavailability of 64bit
    masked PCOM instructions.

    2021-05-07  Uroš Bizjak  <ubiz...@gmail.com>

    gcc/
            PR target/100445
            * config/i386/i386-expand.c (ix86_use_mask_cmp_p):
            Return false for mode sizes < 16.

    gcc/testsuite/

            PR target/100445
            * gcc.target/i386/pr100445-1.c: New test.