rs6000: Always output .machine

We now can always output .machine (if we output it at all for the
current target).


	PR target/91050
	* config/rs6000/rs6000.c (rs6000_file_start): Never skip emitting a
	.machine directive.

From-SVN: r273498

gcc/ChangeLog

+2019-07-15  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR target/91050
+	* config/rs6000/rs6000.c (rs6000_file_start): Never skip emitting a
+	.machine directive.
+
 2019-07-15  Uroš Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (@test<mode>_ccno_1):

gcc/config/rs6000/rs6000.c

@@ -5644,9 +5644,7 @@ rs6000_file_start (void)
 
 #ifdef USING_ELFOS_H
   rs6000_machine = rs6000_machine_from_flags ();
-  if (!(rs6000_default_cpu && rs6000_default_cpu[0])
-      && !global_options_set.x_rs6000_cpu_index)
-    emit_asm_machine ();
+  emit_asm_machine ();
 #endif
 
   if (DEFAULT_ABI == ABI_ELFv2)