[Bug c/94040] [9 Regression] ICE on a call to an invalid redeclaration of strftime

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94040

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|10.0, 9.2.0                 |9.3.0
            Summary|[9/10 Regression] ICE on a  |[9 Regression] ICE on a
                   |call to an invalid          |call to an invalid
                   |redeclaration of strftime   |redeclaration of strftime
      Known to work|                            |10.0

--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed for GCC 10 via r10-7162:

https://gcc.gnu.org/g:f2e9fe5f97d88fc876c44e6ffa57a2e85150adf9

commit r10-7162-gf2e9fe5f97d88fc876c44e6ffa57a2e85150adf9
Author: Martin Sebor <msebor@redhat.com>
Date:   Fri Mar 13 10:28:26 2020 -0600

    PR c/94040 - ICE on a call to an invalid redeclaration of strftime

    gcc/c/ChangeLog:

            PR c/94040
            * c-decl.c (builtin_structptr_type_count): New constant.
            (match_builtin_function_types): Reject decls that are incompatible
            in types pointed to by pointers.
            (diagnose_mismatched_decls): Adjust comments.

    gcc/testsuite/ChangeLog:

            PR c/94040
            * gcc.dg/Wbuiltin-declaration-mismatch-12.c: Relax test to look
            for warning name rather than the exact text.
            * gcc.dg/Wbuiltin-declaration-mismatch-14.c: New test.
            * gcc.dg/Wbuiltin-declaration-mismatch-15.c: New test.
            * gcc.dg/pr62090.c: Prune expected warning.
            * gcc.dg/pr89314.c: Look for warning name rather than text.