[Bug c++/91304] maybe_unused attribute ignored on variable declared in if declaration

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91304

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Fri Aug 23 00:06:25 2019
New Revision: 274839

URL: https://gcc.gnu.org/viewcvs?rev=274839&root=gcc&view=rev
Log:
        PR c++/91304 - prefix attributes ignored in condition.
        * parser.c (cp_parser_condition): Handle prefix attributes.

        * g++.dg/cpp0x/gen-attrs-70.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/gen-attrs-70.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog