[patch] emit-rtl.c: Remove 3 unused functions.

[Kazu Hirata <kazu at cs dot umass dot edu>]

Hi,

Attached is a patch to remove 3 unused functions.

I don't know when they are last used, but just to give you an idea,
here is how old they are:

  subreg_realpart_p (since CVS import, at least 6 years old)
  reorder_insns_with_line_notes (since CVS import, at least 6 years old)
  end_full_sequence (almost 4 years old)

Bootstrapped on i686-pc-linux-gnu.  OK to apply?

Kazu Hirata

2004-02-08  Kazu Hirata  <kazu@cs.umass.edu>

	* emit-rtl.c (subreg_realpart_p): Remove.
	(reorder_insns_with_line_notes): Likewise.
	(end_full_sequence): Likewise.
	* rtl.h: Remove the prototype for the above functions.

Index: emit-rtl.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/emit-rtl.c,v
retrieving revision 1.376
diff -u -r1.376 emit-rtl.c
--- emit-rtl.c	5 Feb 2004 14:15:35 -0000	1.376
+++ emit-rtl.c	8 Feb 2004 03:15:52 -0000
@@ -1070,21 +1070,6 @@
   else
     return gen_highpart (mode, x);
 }
-
-/* Return 1 iff X, assumed to be a SUBREG,
-   refers to the real part of the complex value in its containing reg.
-   Complex values are always stored with the real part in the first word,
-   regardless of WORDS_BIG_ENDIAN.  */
-
-int
-subreg_realpart_p (rtx x)
-{
-  if (GET_CODE (x) != SUBREG)
-    abort ();
-
-  return ((unsigned int) SUBREG_BYTE (x)
-	  < (unsigned int) GET_MODE_UNIT_SIZE (GET_MODE (SUBREG_REG (x))));
-}
 
 /* Assuming that X is an rtx (e.g., MEM, REG or SUBREG) for a value,
    return an rtx (MEM, SUBREG, or CONST_INT) that refers to the
@@ -3713,27 +3698,6 @@
   return insn;
 }
 
-/* Like reorder_insns, but inserts line notes to preserve the line numbers
-   of the moved insns when debugging.  This may insert a note between AFTER
-   and FROM, and another one after TO.  */
-
-void
-reorder_insns_with_line_notes (rtx from, rtx to, rtx after)
-{
-  rtx from_line = find_line_note (from);
-  rtx after_line = find_line_note (after);
-
-  reorder_insns (from, to, after);
-
-  if (from_line == after_line)
-    return;
-
-  if (from_line)
-    emit_note_copy_after (from_line, after);
-  if (after_line)
-    emit_note_copy_after (after_line, to);
-}
-
 /* Remove unnecessary notes from the instruction stream.  */
 
 void
@@ -4860,17 +4824,6 @@
   memset (tem, 0, sizeof (*tem));
   tem->next = free_sequence_stack;
   free_sequence_stack = tem;
-}
-
-/* This works like end_sequence, but records the old sequence in FIRST
-   and LAST.  */
-
-void
-end_full_sequence (rtx *first, rtx *last)
-{
-  *first = first_insn;
-  *last = last_insn;
-  end_sequence ();
 }
 
 /* Return 1 if currently emitting into a sequence.  */
Index: rtl.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/rtl.h,v
retrieving revision 1.455
diff -u -r1.455 rtl.h
--- rtl.h	6 Feb 2004 20:03:43 -0000	1.455
+++ rtl.h	8 Feb 2004 03:15:53 -0000
@@ -1518,7 +1518,6 @@
 extern void push_to_sequence (rtx);
 extern void end_sequence (void);
 extern void push_to_full_sequence (rtx, rtx);
-extern void end_full_sequence (rtx*, rtx*);
 extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT,
 			       enum machine_mode);
 
@@ -2073,7 +2072,6 @@
 extern void init_emit_once (int);
 extern void push_topmost_sequence (void);
 extern void pop_topmost_sequence (void);
-extern int subreg_realpart_p (rtx);
 extern void reverse_comparison (rtx);
 extern void set_new_first_and_last_insn (rtx, rtx);
 extern void set_new_last_label_num (int);
@@ -2087,7 +2085,6 @@
 extern void add_insn_before (rtx, rtx);
 extern void add_insn_after (rtx, rtx);
 extern void remove_insn (rtx);
-extern void reorder_insns_with_line_notes (rtx, rtx, rtx);
 extern void emit_insn_after_with_line_notes (rtx, rtx, rtx);
 extern enum rtx_code classify_insn (rtx);
 extern rtx emit (rtx);