[Bug target/103627] ICE: in extract_insn, at recog.c:2769 (error: unrecognizable insn)

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103627

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kewen Lin <linkw@gcc.gnu.org>:

https://gcc.gnu.org/g:8103623923ac4ea19b97a369979d4bd5731aab57

commit r12-7078-g8103623923ac4ea19b97a369979d4bd5731aab57
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Sun Feb 6 21:29:32 2022 -0600

    rs6000: Disable MMA if no VSX support [PR103627]

    As PR103627 shows, there is an unexpected case where !TARGET_VSX
    and TARGET_MMA co-exist.  As ISA3.1 claims, SIMD is a requirement
    for MMA.  By looking into the ICE, I noticed that the current
    MMA implementation depends on vector pairs load/store which use
    VSX register, but we don't have a separated option to control
    Power10 vector support and Segher pointed out "-mpower9-vector is
    a workaround that should go away" and more explanations in [1].
    So this patch makes MMA require VSX instead.

    [1] https://gcc.gnu.org/pipermail/gcc-patches/2022-January/589303.html

    gcc/ChangeLog:

            PR target/103627
            * config/rs6000/rs6000.cc (rs6000_option_override_internal):
Disable
            MMA if !TARGET_VSX.

    gcc/testsuite/ChangeLog:

            PR target/103627
            * gcc.target/powerpc/pr103627-1.c: New test.
            * gcc.target/powerpc/pr103627-2.c: New test.