+2018-06-01 Jan Beulich <jbeulich@suse.com>
+
+ * config/tc-i386.c (add_prefix): Check REX bits individually.
+ * testsuite/gas/i386/rex.s: Add tests for overriding individual
+ REX bits, including when others are already set.
+ * testsuite/gas/i386/ilp32/rex.d, testsuite/gas/i386/rex.d:
+ Adjust expectations.
+
2018-06-01 Jan Beulich <jbeulich@suse.com>
* config/tc-i386.c (control): Delete.