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From: "mark at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/96328] [11 Regression] Single keyword "friend" makes GCC
 ICE in cp_lexer_previous_token, at cp/parser.c:769 since
 r11-891-g1dc83b460653c29f
Date: Mon, 27 Jul 2020 09:26:36 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96328

--- Comment #4 from Mark Wielaard <mark at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #3)
> Created attachment 48930 [details]
> gcc11-pr96328.patch
>=20
> I wrote this for it (the first hunk is similar).

Yours is nicer because it fixes just the specific part that fails (and it
includes an actual test case).

I tried to fix any use of prev_token in cp_parser_error_1. But I cannot tel=
l if
the one under missing_token_desc !=3D RT_NONE can ever trigger. It was just=
 the
most safe fix I could come up with.=