PR tree-optimize/22348

[pf3gnuchains/gcc-fork.git] / gcc / tree-vectorizer.c

diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index ae389c6..4a9bbe8 100644 (file)
--- a/gcc/tree-vectorizer.c
+++ b/gcc/tree-vectorizer.c
@@ -1142,7 +1142,8 @@ slpeel_tree_peel_loop_to_edge (struct loop *loop, struct loops *loops,
   add_bb_to_loop (bb_before_second_loop, first_loop->outer);
 
   pre_condition =
-    fold_build2 (LE_EXPR, boolean_type_node, first_niters, integer_zero_node);
+    fold_build2 (LE_EXPR, boolean_type_node, first_niters, 
+                 build_int_cst (TREE_TYPE (first_niters), 0));
   skip_e = slpeel_add_loop_guard (bb_before_first_loop, pre_condition,
                                   bb_before_second_loop, bb_before_first_loop);
   slpeel_update_phi_nodes_for_guard1 (skip_e, first_loop,
@@ -1346,14 +1347,6 @@ new_stmt_vec_info (tree stmt, loop_vec_info loop_vinfo)
     STMT_VINFO_DEF_TYPE (res) = vect_unknown_def_type;
   else
     STMT_VINFO_DEF_TYPE (res) = vect_loop_def;
-  STMT_VINFO_MEMTAG (res) = NULL;
-  STMT_VINFO_PTR_INFO (res) = NULL;
-  STMT_VINFO_SUBVARS (res) = NULL;
-  STMT_VINFO_VECT_DR_BASE_ADDRESS (res) = NULL;
-  STMT_VINFO_VECT_INIT_OFFSET (res) = NULL_TREE;
-  STMT_VINFO_VECT_STEP (res) = NULL_TREE;
-  STMT_VINFO_VECT_BASE_ALIGNED_P (res) = false;
-  STMT_VINFO_VECT_MISALIGNMENT (res) = NULL_TREE;
   STMT_VINFO_SAME_ALIGN_REFS (res) = VEC_alloc (dr_p, heap, 5);
 
   return res;
@@ -1406,10 +1399,8 @@ new_loop_vec_info (struct loop *loop)
   LOOP_VINFO_VECTORIZABLE_P (res) = 0;
   LOOP_PEELING_FOR_ALIGNMENT (res) = 0;
   LOOP_VINFO_VECT_FACTOR (res) = 0;
-  VARRAY_GENERIC_PTR_INIT (LOOP_VINFO_DATAREF_WRITES (res), 20,
-                          "loop_write_datarefs");
-  VARRAY_GENERIC_PTR_INIT (LOOP_VINFO_DATAREF_READS (res), 20,
-                          "loop_read_datarefs");
+  VARRAY_GENERIC_PTR_INIT (LOOP_VINFO_DATAREFS (res), 20, "loop_datarefs");
+  VARRAY_GENERIC_PTR_INIT (LOOP_VINFO_DDRS (res), 20, "loop_ddrs");
   LOOP_VINFO_UNALIGNED_DR (res) = NULL;
 
   return res;
@@ -1469,39 +1460,13 @@ destroy_loop_vec_info (loop_vec_info loop_vinfo)
     }
 
   free (LOOP_VINFO_BBS (loop_vinfo));
-  varray_clear (LOOP_VINFO_DATAREF_WRITES (loop_vinfo));
-  varray_clear (LOOP_VINFO_DATAREF_READS (loop_vinfo));
+  varray_clear (LOOP_VINFO_DATAREFS (loop_vinfo));
+  varray_clear (LOOP_VINFO_DDRS (loop_vinfo));
 
   free (loop_vinfo);
 }
 
 
-/* Function vect_strip_conversions
-
-   Strip conversions that don't narrow the mode.  */
-
-tree 
-vect_strip_conversion (tree expr)
-{
-  tree to, ti, oprnd0;
-  
-  while (TREE_CODE (expr) == NOP_EXPR || TREE_CODE (expr) == CONVERT_EXPR)
-    {
-      to = TREE_TYPE (expr);
-      oprnd0 = TREE_OPERAND (expr, 0);
-      ti = TREE_TYPE (oprnd0);
- 
-      if (!INTEGRAL_TYPE_P (to) || !INTEGRAL_TYPE_P (ti))
-       return NULL_TREE;
-      if (GET_MODE_SIZE (TYPE_MODE (to)) < GET_MODE_SIZE (TYPE_MODE (ti)))
-       return NULL_TREE;
-      
-      expr = oprnd0;
-    }
-  return expr; 
-}
-
-
 /* Function vect_force_dr_alignment_p.
 
    Returns whether the alignment of a DECL can be forced to be aligned
@@ -1792,7 +1757,7 @@ reduction_code_for_scalar_code (enum tree_code code,
   
    such that:
    1. operation is commutative and associative and it is safe to 
-      change the the order of the computation.
+      change the order of the computation.
    2. no uses for a2 in the loop (a2 is used out of the loop)
    3. no uses of a1 in the loop besides the reduction operation.