re PR middle-end/34317 (-fno-tree-store-copy-prop causes an ICE)

	PR middle-end/34317
	* opts.c (common_handle_option): Handle OPT_ftree_store_copy_prop.
	* common.opt (ftree-store-copy-prop): Use the same help text as for
	other nop switches.

From-SVN: r130579

gcc/ChangeLog

+2007-12-03  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/34317
+	* opts.c (common_handle_option): Handle OPT_ftree_store_copy_prop.
+	* common.opt (ftree-store-copy-prop): Use the same help text as for
+	other nop switches.
+
 2007-12-02  Ayal Zaks  <zaks@il.ibm.com>
 	    Revital Eres  <eres@il.ibm.com>
 

gcc/common.opt

@@ -1055,7 +1055,7 @@ Enable copy propagation on trees
 
 ftree-store-copy-prop
 Common
-This switch is obsolete
+Does nothing.  Preserved for backward compatibility.
 
 ftree-cselim
 Common Report Var(flag_tree_cselim) Init(2) Optimization

gcc/opts.c

@@ -1777,6 +1777,7 @@ common_handle_option (size_t scode, const char *arg, int value,
     case OPT_floop_optimize:
     case OPT_frerun_loop_opt:
     case OPT_fstrength_reduce:
+    case OPT_ftree_store_copy_prop:
       /* These are no-ops, preserved for backward compatibility.  */
       break;