[Bug target/108348] ICE in gen_movoo, at config/rs6000/mma.md:292

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108348

--- Comment #7 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:5d9529687deb9ed009361a16c02a7f6c3e2ebbf3

commit r13-5236-g5d9529687deb9ed009361a16c02a7f6c3e2ebbf3
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Wed Jan 18 02:34:19 2023 -0600

    rs6000: Teach rs6000_opaque_type_invalid_use_p about gcall [PR108348]

    PR108348 shows one special case that MMA opaque types are
    used in function arguments and treated as pass by reference,
    it results in one copying from argument to a temp variable,
    since this copying happens before rs6000_function_arg check,
    it can cause ICE without MMA support then.  This patch is to
    teach function rs6000_opaque_type_invalid_use_p to check if
    any function argument in a gcall stmt has the invalid use of
    MMA opaque types.

    btw, I checked the handling on return value, it doesn't have
    this kind of issue as its checking and error emission is quite
    early, so this doesn't handle function return value.

            PR target/108348

    gcc/ChangeLog:

            * config/rs6000/rs6000.cc (rs6000_opaque_type_invalid_use_p): Add
the
            support for invalid uses of MMA opaque type in function arguments.

    gcc/testsuite/ChangeLog:

            * gcc.target/powerpc/pr108348-1.c: New test.
            * gcc.target/powerpc/pr108348-2.c: New test.