pa.c (move_operand): Respect -mdisable-indexing.

        * pa.c (move_operand): Respect -mdisable-indexing.
        * pa.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.
Bring over from gcc2.  Fixes ada -O2 bootstrap.

From-SVN: r15927

gcc/ChangeLog

+Wed Oct 15 21:38:18 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* pa.c (move_operand): Respect -mdisable-indexing.
+	* pa.h (GO_IF_LEGITIMATE_ADDRESS): Likewise.
+
 Wed Oct 15 21:34:45 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 
 	* rs6000.md (udivsi3, divsi3): Split into MQ and non-MQ cases for

gcc/config/pa/pa.c

 /* Subroutines for insn-output.c for HPPA.
-   Copyright (C) 1992, , 1994, 95, 96, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
    Contributed by Tim Moore (moore@cs.utah.edu), based on sparc.c
 
 This file is part of GNU CC.
@@ -297,7 +297,8 @@ move_operand (op, mode)
 
   /* Since move_operand is only used for source operands, we can always
      allow scaled indexing!  */
-  if (GET_CODE (op) == PLUS
+  if (! TARGET_DISABLE_INDEXING
+      && GET_CODE (op) == PLUS
       && ((GET_CODE (XEXP (op, 0)) == MULT
 	   && GET_CODE (XEXP (XEXP (op, 0), 0)) == REG
 	   && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT

gcc/config/pa/pa.h

 /* Definitions of target machine for GNU compiler, for the HP Spectrum.
-   Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com) of Cygnus Support
    and Tim Moore (moore@defmacro.cs.utah.edu) of the Center for
    Software Science at the University of Utah.
@@ -1548,6 +1548,7 @@ extern struct rtx_def *hppa_builtin_saveregs ();
 		|| INT_5_BITS (index)))			\
 	  goto ADDR;					\
       if (! TARGET_SOFT_FLOAT				\
+	  && ! TARGET_DISABLE_INDEXING			\
 	  && base					\
 	  && (mode == SFmode || mode == DFmode)		\
 	  && GET_CODE (index) == MULT			\