r260550 - in /trunk/gcc: ChangeLog builtins.c c...

[msebor@gcc.gnu.org]

Author: msebor
Date: Tue May 22 19:37:48 2018
New Revision: 260550

URL: https://gcc.gnu.org/viewcvs?rev=260550&root=gcc&view=rev
Log:
PR middle-end/85359 - duplicate -Wstringop-overflow for a strcmp call with a nonstring pointer

gcc/ChangeLog:

	PR middle-end/85359
	* builtins.c (expand_builtin_strcpy): Call maybe_warn_nonstring_arg
	only when expasion succeeds.
	(expand_builtin_strcmp): Same.
	(expand_builtin_strncmp): Same.

gcc/testsuite/ChangeLog:

	PR middle-end/85359
	* gcc.dg/attr-nonstring.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/attr-nonstring.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/calls.c
    trunk/gcc/testsuite/ChangeLog