ifcvt.c (noce_process_if_block): Make a copy of the destination when copying back from a temporary.

	* ifcvt.c (noce_process_if_block): Make a copy of the destination
	when copying back from a temporary.

From-SVN: r49369

gcc/ChangeLog

+2002-01-31  Richard Sandiford  <rsandifo@redhat.com>
+
+	* ifcvt.c (noce_process_if_block): Make a copy of the destination
+	when copying back from a temporary.
+
 2002-01-30  Richard Henderson  <rth@redhat.com>
 
 	* ifcvt.c (dead_or_predicable): Handling merging when other_bb

gcc/ifcvt.c

@@ -1792,7 +1792,7 @@ noce_process_if_block (test_bb, then_bb, else_bb, join_bb)
   if (orig_x != x)
     {
       start_sequence ();
-      noce_emit_move_insn (orig_x, x);
+      noce_emit_move_insn (copy_rtx (orig_x), x);
       insn_b = gen_sequence ();
       end_sequence ();