re PR rtl-optimization/21138 (wrong code in sixtrack for -fmodulo-sched)

2005-06-01 Mostafa Hagog <mustafa@il.ibm.com>

	* modulo-sched.c (undo_generate_reg_moves ): Fix PR 21138.

From-SVN: r100426

gcc/ChangeLog

 2005-06-01 Mostafa Hagog <mustafa@il.ibm.com>
 
+	* modulo-sched.c (undo_generate_reg_moves ): Fix PR 21138.
+
+2005-06-01 Mostafa Hagog <mustafa@il.ibm.com>
+
 	* gcse.c (compute_transp, load_killed_in_block): Use 
 	MEM_READONLY_P.
 

gcc/modulo-sched.c

@@ -597,6 +597,7 @@ undo_generate_reg_moves (partial_schedule_ptr ps,
 	  delete_insn (crr);
 	  crr = prev;
 	}
+      SCHED_FIRST_REG_MOVE (u) = NULL_RTX;
     }
 
   while (reg_move_replaces)