gcse.c (delete_null_pointer_checks): Only record non-null info for pseudos when examining stores.

        * gcse.c (delete_null_pointer_checks): Only record non-null info
        for pseudos when examining stores.

From-SVN: r30231

gcc/ChangeLog

@@ -5,6 +5,9 @@ Thu Oct 28 02:44:03 1999  Glen Nakamura  <glen.nakamura@usa.net>
 
 Thu Oct 28 02:15:22 1999  Jeffrey A Law  (law@cygnus.com)
 
+	* gcse.c (delete_null_pointer_checks): Only record non-null info
+	for pseudos when examining stores.
+
 	* arm.md (adddi3, adddi_sesidi_di, adddi_sesidi_di): Add
 	splitters for these patterns.  Use "#" for output templates.
 	(addsi3_carryin_shift): New pattern.

gcc/gcse.c

@@ -5076,7 +5076,8 @@ delete_null_pointer_checks (f)
 	     not kill the nonnull property if it is derived from a MEM
 	     appearing in a SET_DEST.  */
 	  if (GET_CODE (SET_DEST (set)) == MEM
-	      && GET_CODE (XEXP (SET_DEST (set), 0)) == REG)
+	      && GET_CODE (XEXP (SET_DEST (set), 0)) == REG
+	      && REGNO (XEXP (SET_SRC (set), 0)) >= FIRST_PSEUDO_REGISTER)
 	    SET_BIT (nonnull_local[current_block],
 		     REGNO (XEXP (SET_DEST (set), 0)));
 	}