[Bug c/30552] gcc crashes when compiling examples with GNU statement expressions in VLAs (also involved: nested functions declared K&R-style)

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30552

--- Comment #10 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Wed May  2 17:22:26 2018
New Revision: 259849

URL: https://gcc.gnu.org/viewcvs?rev=259849&root=gcc&view=rev
Log:
        PR c/30552
        * c-decl.c (old_style_parameter_scope): New function.
        * c-parser.c (c_parser_postfix_expression): Check for statement
        expressions in old-style function parameter list declarations.
        * c-parser.h (old_style_parameter_scope): New extern declaration.

        PR c/30552
        * gcc.dg/noncompile/pr30552-1.c: New test.
        * gcc.dg/noncompile/pr30552-2.c: New test.
        * gcc.dg/noncompile/pr30552-3.c: New test.
        * gcc.dg/noncompile/pr30552-4.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/noncompile/pr30552-1.c
    trunk/gcc/testsuite/gcc.dg/noncompile/pr30552-2.c
    trunk/gcc/testsuite/gcc.dg/noncompile/pr30552-3.c
    trunk/gcc/testsuite/gcc.dg/noncompile/pr30552-4.c
Modified:
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-decl.c
    trunk/gcc/c/c-parser.c
    trunk/gcc/c/c-parser.h
    trunk/gcc/testsuite/ChangeLog