gcc/ChangeLog:

	PR c/85365
	* gimple-fold.c (gimple_fold_builtin_strcpy): Suppress -Wrestrict
	for null pointers.
	(gimple_fold_builtin_stxcpy_chk): Same.
	* gimple-ssa-warn-restrict.c (check_bounds_or_overlap): Same.

gcc/testsuite/ChangeLog:

	PR c/85365
	* gcc.dg/Wrestrict-15.c: New test.

From-SVN: r259535