Get builtins tests ready for linker plugin.
* gcc.c-torture/execute/builtins/memcpy-chk.c (s2,s3,l1): Mark volatile.
* gcc.c-torture/execute/builtins/memops-asm-lib.c (my_memcpy, my_bcopy, my_memset,
my_bzero): Mark used.
* gcc.c-torture/execute/builtins/memset-chk.c (l1, l3): Mark volatile.
* gcc.c-torture/execute/builtins/memmove-chk.c (s1,s2,s3,l1): Mark volatile.
* gcc.c-torture/execute/builtins/mempcpy-chk.c (s2,s3,l1): Mark volatile
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168588
138bc75d-0d04-0410-961f-
82ee72b054a4