cselib.h (struct elt_loc_list): Remove canon_loc field.

	* cselib.h (struct elt_loc_list): Remove canon_loc field.
	* cselib.c (new_elt_loc_list): Remove canon_loc initialization.
	(cselib_invalidate_mem): Remove all canon_loc and canon_x
	traces.

From-SVN: r81037

gcc/ChangeLog

+2004-04-22  Jakub Jelinek  <jakub@redhat.com>
+
+	* cselib.h (struct elt_loc_list): Remove canon_loc field.
+	* cselib.c (new_elt_loc_list): Remove canon_loc initialization.
+	(cselib_invalidate_mem): Remove all canon_loc and canon_x
+	traces.
+
 2004-04-22  Josef Zlomek  <zlomekj@suse.cz>
 
 	Revert

gcc/cselib.c

@@ -157,7 +157,6 @@ new_elt_loc_list (struct elt_loc_list *next, rtx loc)
   el = pool_alloc (elt_loc_list_pool);
   el->next = next;
   el->loc = loc;
-  el->canon_loc = NULL;
   el->setting_insn = cselib_current_insn;
   el->in_libcall = cselib_current_insn_in_libcall;
   return el;
@@ -1081,7 +1080,6 @@ cselib_invalidate_mem (rtx mem_rtx)
       while (*p)
 	{
 	  rtx x = (*p)->loc;
-	  rtx canon_x = (*p)->canon_loc;
 	  cselib_val *addr;
 	  struct elt_list **mem_chain;
 
@@ -1092,8 +1090,6 @@ cselib_invalidate_mem (rtx mem_rtx)
 	      p = &(*p)->next;
 	      continue;
 	    }
-	  if (!canon_x)
-	    canon_x = (*p)->canon_loc = canon_rtx (x);
 	  if (num_mems < PARAM_VALUE (PARAM_MAX_CSELIB_MEMORY_LOCATIONS)
 	      && ! canon_true_dependence (mem_rtx, GET_MODE (mem_rtx), mem_addr,
 		      			  x, cselib_rtx_varies_p))

gcc/cselib.h

@@ -49,7 +49,6 @@ struct elt_loc_list GTY(())
   struct elt_loc_list *next;
   /* An rtl expression that holds the value.  */
   rtx loc;
-  rtx canon_loc;
   /* The insn that made the equivalence.  */
   rtx setting_insn;
   /* True when setting insn is inside libcall.  */