Remove old code to get arguments in regs into pseudos early.

From-SVN: r18148

gcc/ChangeLog

@@ -1,3 +1,9 @@
+Fri Feb 20 16:22:13 1998  Michael Meissner  <meissner@cygnus.com>
+
+	* sched.c (schedule_block): Remove code to get arguments from hard
+	regs into pseudos early.  Same as Aug 25, 1997 change to
+	haifa-sched.c.
+
 1998-02-20  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* collect2.c (main): Still handle !do_collecting for non-AIX targets.

gcc/sched.c

@@ -2666,6 +2666,14 @@ schedule_block (b, file)
   reg_pending_sets_all = 0;
   clear_units ();
 
+#if 0
+  /* We used to have code to avoid getting parameters moved from hard
+     argument registers into pseudos.
+
+     However, it was removed when it proved to be of marginal benefit and
+     caused problems because of different notions of what the "head" insn
+     was.  */
+
   /* Remove certain insns at the beginning from scheduling,
      by advancing HEAD.  */
 
@@ -2696,6 +2704,7 @@ schedule_block (b, file)
 	  head = NEXT_INSN (head);
 	}
     }
+#endif
 
   /* Don't include any notes or labels at the beginning of the
      basic block, or notes at the ends of basic blocks.  */