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Subject: [Bug target/99542] [9/10/11 Regression] ICE in exact_div, at
 poly-int.h:2219
Date: Tue, 16 Mar 2021 09:35:33 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99542

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:fcefc59befd396267b824c170b6a37acaf10874e

commit r11-7683-gfcefc59befd396267b824c170b6a37acaf10874e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Mar 16 10:34:44 2021 +0100

    aarch64: Fix up aarch64_simd_clone_compute_vecsize_and_simdlen [PR99542]

    As the patch shows, there are several bugs in
    aarch64_simd_clone_compute_vecsize_and_simdlen.
    One is that unlike for function declarations that aren't definitions
    it completely ignores argument types.  Such decls don't have
DECL_ARGUMENTS,
    but we can walk TYPE_ARG_TYPES instead, like the i386 backend does or l=
ike
    the simd cloning code in the middle end does too.

    Another problem is that it checks types of uniform arguments.  That is
    unnecessary, uniform arguments are passed the way it normally is, it is
    a scalar argument rather than vector, so there is no reason not to supp=
ort
    uniform argument of different size, or long double, structure etc.

    2021-03-16  Jakub Jelinek  <jakub@redhat.com>

            PR target/99542
            * config/aarch64/aarch64.c
            (aarch64_simd_clone_compute_vecsize_and_simdlen): If not a func=
tion
            definition, walk TYPE_ARG_TYPES list if non-NULL for argument t=
ypes
            instead of DECL_ARGUMENTS.  Ignore types for uniform arguments.

            * gcc.dg/gomp/pr99542.c: New test.
            * gcc.dg/gomp/pr59669-2.c (bar): Don't expect a warning on aarc=
h64.
            * gcc.dg/gomp/simd-clones-2.c (setArray): Likewise.
            * g++.dg/vect/simd-clone-7.cc (bar): Likewise.
            * g++.dg/gomp/declare-simd-1.C (f37): Expect a different warning
            on aarch64.
            * gcc.dg/declare-simd.c (fn2): Expect a new warning on aarch64.=