[patch] Delete HAVE_REGISTER_WINDOWS macro

[Andrew Cagney <ac131313 at cygnus dot com>]

No longer used!  Ya.

Committed,
Andrew
2002-04-21  Andrew Cagney  <ac131313@redhat.com>

	* frame.c (find_saved_register): Delete #ifdef
	HAVE_REGISTER_WINDOWS code.
	* config/sparc/tm-sparc.h: Update comments.
	* config/i960/tm-i960.h (HAVE_REGISTER_WINDOWS): Delete macro.

Index: doc/ChangeLog
2002-04-21  Andrew Cagney  <ac131313@redhat.com>

	* gdbint.texinfo (Target Architecture Definition): Delete
	definition of HAVE_REGISTER_WINDOWS.

Index: frame.c
===================================================================
RCS file: /cvs/src/src/gdb/frame.c,v
retrieving revision 1.8
diff -u -r1.8 frame.c
--- frame.c	20 Apr 2002 23:54:28 -0000	1.8
+++ frame.c	21 Apr 2002 15:29:17 -0000
@@ -43,39 +43,6 @@
   if (frame == NULL)		/* No regs saved if want current frame */
     return 0;
 
-#ifdef HAVE_REGISTER_WINDOWS
-  /* We assume that a register in a register window will only be saved
-     in one place (since the name changes and/or disappears as you go
-     towards inner frames), so we only call get_frame_saved_regs on
-     the current frame.  This is directly in contradiction to the
-     usage below, which assumes that registers used in a frame must be
-     saved in a lower (more interior) frame.  This change is a result
-     of working on a register window machine; get_frame_saved_regs
-     always returns the registers saved within a frame, within the
-     context (register namespace) of that frame. */
-
-  /* However, note that we don't want this to return anything if
-     nothing is saved (if there's a frame inside of this one).  Also,
-     callers to this routine asking for the stack pointer want the
-     stack pointer saved for *this* frame; this is returned from the
-     next frame.  */
-
-  if (REGISTER_IN_WINDOW_P (regnum))
-    {
-      frame1 = get_next_frame (frame);
-      if (!frame1)
-	return 0;		/* Registers of this frame are active.  */
-
-      /* Get the SP from the next frame in; it will be this
-         current frame.  */
-      if (regnum != SP_REGNUM)
-	frame1 = frame;
-
-      FRAME_INIT_SAVED_REGS (frame1);
-      return frame1->saved_regs[regnum];	/* ... which might be zero */
-    }
-#endif /* HAVE_REGISTER_WINDOWS */
-
   /* Note that this next routine assumes that registers used in
      frame x will be saved only in the frame that x calls and
      frames interior to it.  This is not true on the sparc, but the
Index: config/i960/tm-i960.h
===================================================================
RCS file: /cvs/src/src/gdb/config/i960/tm-i960.h,v
retrieving revision 1.9
diff -u -r1.9 tm-i960.h
--- config/i960/tm-i960.h	21 Apr 2002 15:19:06 -0000	1.9
+++ config/i960/tm-i960.h	21 Apr 2002 15:29:24 -0000
@@ -116,8 +116,6 @@
 
 /* The i960 has register windows, sort of.  */
 
-#define HAVE_REGISTER_WINDOWS
-
 extern void i960_get_saved_register (char *raw_buffer,
 				     int *optimized,
 				     CORE_ADDR *addrp,
Index: config/sparc/tm-sparc.h
===================================================================
RCS file: /cvs/src/src/gdb/config/sparc/tm-sparc.h,v
retrieving revision 1.12
diff -u -r1.12 tm-sparc.h
--- config/sparc/tm-sparc.h	29 Jan 2002 04:42:44 -0000	1.12
+++ config/sparc/tm-sparc.h	21 Apr 2002 15:29:31 -0000
@@ -468,9 +468,8 @@
   /* time of the register saves.  */ \
   int sp_offset;
 
-/* We need to override GET_SAVED_REGISTER so that we can deal with the way
-   outs change into ins in different frames.  HAVE_REGISTER_WINDOWS can't
-   deal with this case and also handle flat frames at the same time.  */
+/* We need to override GET_SAVED_REGISTER so that we can deal with the
+   way outs change into ins in different frames.  */
 
 void sparc_get_saved_register (char *raw_buffer,
 			       int *optimized,
Index: doc/gdbint.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdbint.texinfo,v
retrieving revision 1.76
diff -u -r1.76 gdbint.texinfo
--- doc/gdbint.texinfo	19 Apr 2002 19:33:57 -0000	1.76
+++ doc/gdbint.texinfo	21 Apr 2002 15:30:42 -0000
@@ -3044,10 +3044,6 @@
 Define this if you need to supply your own definition for the function
 @code{get_saved_register}.
 
-@item HAVE_REGISTER_WINDOWS
-@findex HAVE_REGISTER_WINDOWS
-Define this if the target has register windows.
-
 @item REGISTER_IN_WINDOW_P (@var{regnum})
 @findex REGISTER_IN_WINDOW_P
 Define this to be an expression that is 1 if the given register is in