Update comment.

From-SVN: r8809

gcc/config/i386/i386.c

 /* Subroutines for insn-output.c for Intel X86.
-   Copyright (C) 1988, 1992, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1988, 1992, 1994, 1995 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -1463,7 +1463,7 @@ legitimate_address_p (mode, addr, strict)
 	}
     }
   else if (scale)
-    abort ();					/* scale w/o index illegal */
+    abort ();					/* scale w/o index invalid */
 
   /* Validate scale factor */
   if (scale)

gcc/config/rs6000/rs6000.h

@@ -1513,7 +1513,7 @@ struct rs6000_args {int words, fregno, nargs_prototype; };
    of a switch statement.  If the code is computed here,
    return it with a return statement.  Otherwise, break from the switch.
 
-   On the RS/6000, if it is legal in the insn, it is free.  So this
+   On the RS/6000, if it is valid in the insn, it is free.  So this
    always returns 0.  */
 
 #define CONST_COSTS(RTX,CODE,OUTER_CODE) \