* basic-block.h: Remove the prototype for

	flow_preorder_transversal_compute.
	* cfganal.c (dfst_node): Remove.
	(flow_preorder_transversal_compute): Likewise.
	* rtl.h: Remove the prototype for get_jump_table_offset.
	* rtlanal.c (get_jump_table_offset): Remove.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88580 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 132 deletions

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index b529d76794c..7e79a8abeec 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -435,138 +435,6 @@ get_related_value (rtx x)
   return 0;
 }
 
-/* Given a tablejump insn INSN, return the RTL expression for the offset
-   into the jump table.  If the offset cannot be determined, then return
-   NULL_RTX.
-
-   If EARLIEST is nonzero, it is a pointer to a place where the earliest
-   insn used in locating the offset was found.  */
-
-rtx
-get_jump_table_offset (rtx insn, rtx *earliest)
-{
-  rtx label = NULL;
-  rtx table = NULL;
-  rtx set;
-  rtx old_insn;
-  rtx x;
-  rtx old_x;
-  rtx y;
-  rtx old_y;
-  int i;
-
-  if (!tablejump_p (insn, &label, &table) || !(set = single_set (insn)))
-    return NULL_RTX;
-
-  x = SET_SRC (set);
-
-  /* Some targets (eg, ARM) emit a tablejump that also
-     contains the out-of-range target.  */
-  if (GET_CODE (x) == IF_THEN_ELSE
-      && GET_CODE (XEXP (x, 2)) == LABEL_REF)
-    x = XEXP (x, 1);
-
-  /* Search backwards and locate the expression stored in X.  */
-  for (old_x = NULL_RTX; REG_P (x) && x != old_x;
-       old_x = x, x = find_last_value (x, &insn, NULL_RTX, 0))
-    ;
-
-  /* If X is an expression using a relative address then strip
-     off the addition / subtraction of PC, PIC_OFFSET_TABLE_REGNUM,
-     or the jump table label.  */
-  if (GET_CODE (PATTERN (table)) == ADDR_DIFF_VEC
-      && (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS))
-    {
-      for (i = 0; i < 2; i++)
-	{
-	  old_insn = insn;
-	  y = XEXP (x, i);
-
-	  if (y == pc_rtx || y == pic_offset_table_rtx)
-	    break;
-
-	  for (old_y = NULL_RTX; REG_P (y) && y != old_y;
-	       old_y = y, y = find_last_value (y, &old_insn, NULL_RTX, 0))
-	    ;
-
-	  if ((GET_CODE (y) == LABEL_REF && XEXP (y, 0) == label))
-	    break;
-	}
-
-      if (i >= 2)
-	return NULL_RTX;
-
-      x = XEXP (x, 1 - i);
-
-      for (old_x = NULL_RTX; REG_P (x) && x != old_x;
-	   old_x = x, x = find_last_value (x, &insn, NULL_RTX, 0))
-	;
-    }
-
-  /* Strip off any sign or zero extension.  */
-  if (GET_CODE (x) == SIGN_EXTEND || GET_CODE (x) == ZERO_EXTEND)
-    {
-      x = XEXP (x, 0);
-
-      for (old_x = NULL_RTX; REG_P (x) && x != old_x;
-	   old_x = x, x = find_last_value (x, &insn, NULL_RTX, 0))
-	;
-    }
-
-  /* If X isn't a MEM then this isn't a tablejump we understand.  */
-  if (!MEM_P (x))
-    return NULL_RTX;
-
-  /* Strip off the MEM.  */
-  x = XEXP (x, 0);
-
-  for (old_x = NULL_RTX; REG_P (x) && x != old_x;
-       old_x = x, x = find_last_value (x, &insn, NULL_RTX, 0))
-    ;
-
-  /* If X isn't a PLUS than this isn't a tablejump we understand.  */
-  if (GET_CODE (x) != PLUS)
-    return NULL_RTX;
-
-  /* At this point we should have an expression representing the jump table
-     plus an offset.  Examine each operand in order to determine which one
-     represents the jump table.  Knowing that tells us that the other operand
-     must represent the offset.  */
-  for (i = 0; i < 2; i++)
-    {
-      old_insn = insn;
-      y = XEXP (x, i);
-
-      for (old_y = NULL_RTX; REG_P (y) && y != old_y;
-	   old_y = y, y = find_last_value (y, &old_insn, NULL_RTX, 0))
-	;
-
-      if ((GET_CODE (y) == CONST || GET_CODE (y) == LABEL_REF)
-	  && reg_mentioned_p (label, y))
-	break;
-    }
-
-  if (i >= 2)
-    return NULL_RTX;
-
-  x = XEXP (x, 1 - i);
-
-  /* Strip off the addition / subtraction of PIC_OFFSET_TABLE_REGNUM.  */
-  if (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS)
-    for (i = 0; i < 2; i++)
-      if (XEXP (x, i) == pic_offset_table_rtx)
-	{
-	  x = XEXP (x, 1 - i);
-	  break;
-	}
-
-  if (earliest)
-    *earliest = insn;
-
-  /* Return the RTL expression representing the offset.  */
-  return x;
-}
-
 /* A subroutine of global_reg_mentioned_p, returns 1 if *LOC mentions
    a global register.  */