Remove unused function and field in data_reference.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-data-ref.c (stmt_simple_memref_p: Removed.
	* tree-data-ref.h (scop_p): Removed.
	(struct data_reference): Remove field scop.
	(DR_SCOP): Removed.
	(stmt_simple_memref_p): Removed.

From-SVN: r150295

gcc/ChangeLog

 2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* tree-data-ref.c (stmt_simple_memref_p: Removed.
+	* tree-data-ref.h (scop_p): Removed.
+	(struct data_reference): Remove field scop.
+	(DR_SCOP): Removed.
+	(stmt_simple_memref_p): Removed.
+
+2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* cfgloop.h (create_empty_loop_on_edge): Pass an extra argument.
 	* cfgloopmanip.c (create_empty_loop_on_edge): Leave the loop_latch
 	basic block empty.

gcc/tree-data-ref.c

@@ -3334,22 +3334,6 @@ access_functions_are_affine_or_constant_p (const struct data_reference *a,
   return true;
 }
 
-/* Return true if we can create an affine data-ref for OP in STMT.  */
-
-bool
-stmt_simple_memref_p (struct loop *loop, gimple stmt, tree op)
-{
-  data_reference_p dr;
-  bool res = true;
-
-  dr = create_data_ref (loop, op, stmt, true);
-  if (!access_functions_are_affine_or_constant_p (dr, loop))
-    res = false;
-
-  free_data_ref (dr);
-  return res;
-}
-
 /* Initializes an equation for an OMEGA problem using the information
    contained in the ACCESS_FUN.  Returns true when the operation
    succeeded.

gcc/tree-data-ref.h

@@ -96,8 +96,6 @@ struct dr_alias
   bitmap vops;
 };
 
-typedef struct scop *scop_p;
-
 /* Each vector of the access matrix represents a linear access
    function for a subscript.  First elements correspond to the
    leftmost indices, ie. for a[i][j] the first vector corresponds to
@@ -184,14 +182,10 @@ struct data_reference
   /* Alias information for the data reference.  */
   struct dr_alias alias;
 
-  /* The SCoP in which the data reference was analyzed.  */
-  scop_p scop;
-
   /* Matrix representation for the data access functions.  */
   struct access_matrix *access_matrix;
 };
 
-#define DR_SCOP(DR)                (DR)->scop
 #define DR_STMT(DR)                (DR)->stmt
 #define DR_REF(DR)                 (DR)->ref
 #define DR_BASE_OBJECT(DR)         (DR)->indices.base_object
@@ -418,7 +412,6 @@ extern void compute_all_dependences (VEC (data_reference_p, heap) *,
 extern void create_rdg_vertices (struct graph *, VEC (gimple, heap) *);
 extern bool dr_may_alias_p (const struct data_reference *,
 			    const struct data_reference *);
-extern bool stmt_simple_memref_p (struct loop *, gimple, tree);
 
 /* Return true when the DDR contains two data references that have the
    same access functions.  */