+2000-07-03 Jakub Jelinek <jakub@redhat.com>
+
+ * builtins.c (get_memory_rtx): Always put into alias set 0.
+
2000-07-03 Nick Clifton <nickc@cygnus.com>
* config/arm/arm.md: Fix post increment and pre increment
return mem;
set_mem_attributes (mem, exp, 0);
+
+ /* memcpy, memset and other builtin stringops can alias with anything. */
+ MEM_ALIAS_SET (mem) = 0;
return mem;
}
\f
+2000-07-03 Jakub Jelinek <jakub@redhat.com>
+
+ * gcc.c-torture/execute/20000703-1.c: New test.
+
2000-07-03 Nathan Sidwell <nathan@codesourcery.com>
* g++.old-deja/g++.pt (lookup10.C): New test.
--- /dev/null
+void abort(void);
+void exit(int);
+struct baz
+{
+ char a[17];
+ char b[3];
+ unsigned int c;
+ unsigned int d;
+};
+
+void foo(struct baz *p, unsigned int c, unsigned int d)
+{
+ __builtin_memcpy (p->b, "abc", 3);
+ p->c = c;
+ p->d = d;
+}
+
+void bar(struct baz *p, unsigned int c, unsigned int d)
+{
+ ({ void *s = (p);
+ __builtin_memset (s, '\0', sizeof (struct baz));
+ s; });
+ __builtin_memcpy (p->a, "01234567890123456", 17);
+ __builtin_memcpy (p->b, "abc", 3);
+ p->c = c;
+ p->d = d;
+}
+
+int main()
+{
+ struct baz p;
+ foo(&p, 71, 18);
+ if (p.c != 71 || p.d != 18)
+ abort();
+ bar(&p, 59, 26);
+ if (p.c != 59 || p.d != 26)
+ abort();
+ exit(0);
+}