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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/102027] [11/12 Regression] ABI break when using vector
 type in function arg/return value
Date: Mon, 23 Aug 2021 18:49:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102027

--- Comment #1 from Uro=C5=A1 Bizjak <ubizjak at gmail dot com> ---
(In reply to Marek Polacek from comment #0)
> We have an ABI break.  Discovered by
> Running
> /root/rpmbuild/BUILD/gcc-11.2.1-20210728/gcc/testsuite/gcc.dg/compat/stru=
ct-
> layout-1.exp ...
> FAIL: tmpdir-gcc.dg-struct-layout-1/t025 c_compat_x_tst.o-c_compat_y_alt.o
> execute=20
> FAIL: tmpdir-gcc.dg-struct-layout-1/t025 c_compat_x_alt.o-c_compat_y_tst.o
> execute
>=20
> Started with r11-263.

Strange, changes in the referred revision do not touch any of the ABI-defin=
ning
functions.=