https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101849

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Peter Bergner
<berg...@gcc.gnu.org>:

https://gcc.gnu.org/g:de2114d2f1792beae55dccb512c4c521b934e72b

commit r10-10091-gde2114d2f1792beae55dccb512c4c521b934e72b
Author: Peter Bergner <berg...@linux.ibm.com>
Date:   Thu Aug 19 17:33:29 2021 -0500

    rs6000: Fix ICE expanding lxvp and stxvp gimple built-ins [PR101849]

    PR101849 shows we ICE on a test case when we pass a non __vector_pair *
    pointer to the __builtin_vsx_lxvp and __builtin_vsx_stxvp built-ins
    that is cast to __vector_pair *.  The problem is that when we expand
    the built-in, the cast has already been removed from gimple and we are
    only given the base pointer.  The solution used here (which fixes the ICE)
    is to catch this case and convert the pointer to a __vector_pair * pointer
    when expanding the built-in.

    2021-08-19  Peter Bergner  <berg...@linux.ibm.com>

    gcc/
            PR target/101849
            * config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin):
Cast
            pointer to __vector_pair *.

    gcc/testsuite/
            PR target/101849
            * gcc.target/powerpc/pr101849.c: New test.

    (cherry picked from commit b0963c4379becafaebd8e52b0b42698ff151c293)

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