[patch] tree-ssa-operands.c: Remove realloc_*.

[Kazu Hirata <kazu at codesourcery dot com>]

Hi,

Attached is a patch to remove realloc_vop, realloc_vdef and
realloc_vuse as they are unused.

Built cc1.  OK to apply?

Kazu Hirata

2007-07-07  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-operands.c (realloc_vop, realloc_vdef,
	realloc_vuse): Remove.
	* tree-ssa-operands.h: Remove the prototype for realloc_vdef
	and realloc_vuse.

Index: tree-ssa-operands.c
===================================================================
--- tree-ssa-operands.c	(revision 126440)
+++ tree-ssa-operands.c	(working copy)
@@ -669,99 +669,6 @@ add_vdef_op (tree stmt, tree op, int num
 }
   
 
-/* Reallocate the virtual operand PTR so that it has NUM_ELEM use slots.  ROOT
-   is the head of the operand list it belongs to.  */
-
-static inline struct voptype_d *
-realloc_vop (struct voptype_d *ptr, unsigned int num_elem,
-	     struct voptype_d **root)
-{
-  unsigned int x, lim;
-  tree stmt, val;
-  struct voptype_d *ret, *tmp;
-
-  if (VUSE_VECT_NUM_ELEM (ptr->usev) == num_elem)
-    return ptr; 
-
-  val = VUSE_OP (ptr, 0);
-  if (TREE_CODE (val) == SSA_NAME)
-    val = SSA_NAME_VAR (val);
-
-  stmt = USE_STMT (VUSE_OP_PTR (ptr, 0));
-
-  /* Delink all the existing uses.  */
-  for (x = 0; x < VUSE_VECT_NUM_ELEM (ptr->usev); x++)
-    {
-      use_operand_p use_p = VUSE_OP_PTR (ptr, x);
-      delink_imm_use (use_p);
-    }
-
-  /* If we want less space, simply use this one, and shrink the size.  */
-  if (VUSE_VECT_NUM_ELEM (ptr->usev) > num_elem)
-    {
-      VUSE_VECT_NUM_ELEM (ptr->usev) = num_elem;
-      return ptr;
-    }
-
-  /* It is growing.  Allocate a new one and replace the old one.  */
-  ret = add_vuse_op (stmt, val, num_elem, ptr);
-
-  /* Clear PTR and add its memory to the free list.  */
-  lim = VUSE_VECT_NUM_ELEM (ptr->usev);
-  memset (ptr, 0,
-          sizeof (struct voptype_d) + sizeof (vuse_element_t) * (lim- 1));
-  add_vop_to_freelist (ptr);
-
-  /* Now simply remove the old one.  */
-  if (*root == ptr)
-    {
-      *root = ret;
-      return ret;
-    }
-  else
-    for (tmp = *root; 
-	 tmp != NULL && tmp->next != ptr; 
-	 tmp = tmp->next)
-      {
-	tmp->next = ret;
-	return ret;
-      }
-
-  /* The pointer passed in isn't in STMT's VDEF lists.  */
-  gcc_unreachable ();
-}
- 
-
-/* Reallocate the PTR vdef so that it has NUM_ELEM use slots.  */
-
-struct voptype_d *
-realloc_vdef (struct voptype_d *ptr, unsigned int num_elem)
-{
-  tree val, stmt;
-  struct voptype_d *ret;
-
-  val = VDEF_RESULT (ptr);
-  stmt = USE_STMT (VDEF_OP_PTR (ptr, 0));
-  ret = realloc_vop (ptr, num_elem, &(VDEF_OPS (stmt)));
-  VDEF_RESULT (ret) = val;
-  return ret;
-}
-  
-
-/* Reallocate the PTR vuse so that it has NUM_ELEM use slots.  */
-
-struct voptype_d *
-realloc_vuse (struct voptype_d *ptr, unsigned int num_elem)
-{
-  tree stmt;
-  struct voptype_d *ret;
-
-  stmt = USE_STMT (VUSE_OP_PTR (ptr, 0));
-  ret = realloc_vop (ptr, num_elem, &(VUSE_OPS (stmt)));
-  return ret;
-}
-
-
 /* Takes elements from build_defs and turns them into def operands of STMT.
    TODO -- Make build_defs VEC of tree *.  */
 
Index: tree-ssa-operands.h
===================================================================
--- tree-ssa-operands.h	(revision 126440)
+++ tree-ssa-operands.h	(working copy)
@@ -203,9 +203,6 @@ typedef struct stmt_operands_d *stmt_ope
 #define PHI_ARG_INDEX_FROM_USE(USE)   phi_arg_index_from_use (USE)
 
 
-extern struct voptype_d *realloc_vdef (struct voptype_d *, unsigned int);
-extern struct voptype_d *realloc_vuse (struct voptype_d *, unsigned int);
-
 extern void init_ssa_operands (void);
 extern void fini_ssa_operands (void);
 extern void free_ssa_operands (stmt_operands_p);