[Bug tree-optimization/87490] [9 Regression] ICE in expand_builtin_strnlen at gcc/builtins.c:3164

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87490

--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Fri Oct  5 16:43:11 2018
New Revision: 264876

URL: https://gcc.gnu.org/viewcvs?rev=264876&root=gcc&view=rev
Log:
PR tree-optimization/87490 - ICE in expand_builtin_strnlen with a constant
argument and non-constant bound

gcc/ChangeLog:

        PR tree-optimization/87490
        * builtins.c (expand_builtin_strnlen): Handle a null data.decl
        consistently.

gcc/testsuite/ChangeLog:

        PR tree-optimization/87490
        * gcc.dg/pr87490.c: New test.
        * gcc.dg/warn-strnlen-no-nul-2.c: Same.

Added:
    trunk/gcc/testsuite/gcc.dg/pr87490.c
    trunk/gcc/testsuite/gcc.dg/warn-strnlen-no-nul-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog