tree-vectorizer.c (destroy_loop_vec_info): Set loop->aux to NULL.

        * tree-vectorizer.c (destroy_loop_vec_info): Set loop->aux to NULL.
        * tree-vect-analyze.c (vect_analyze_loop_form): Set loop->aux.

        * tree-vectorizer.h (NITERS_KNOWN_P): New.
        * tree-vect-analyze.c (vect_analyze_loop_form): Call NITERS_KNOWN_P
        instead of LOOP_VINFO_INT_NITERS to avoid having to geneate loop_info.

        * tree-vect-analyze.c (vect_determine_vectorization_factor): Add
        dump print.
        (vect_analyze_operations): Fix indenetation.  Fix a comment.  Fix a
        print message.
        (vect_analyze_scalar_cycles): Fix indentation.
        (vect_enhance_data_refs_alignment): Fix check in case of peeling.
        (vect_mark_relevant): Include phis in relevance analysis.

        * tree-vect-transform.c (vect_transform_loop): Add an assert.

From-SVN: r123955

gcc/ChangeLog

+2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>
+
+	* tree-vectorizer.c (destroy_loop_vec_info): Set loop->aux to NULL.
+	* tree-vect-analyze.c (vect_analyze_loop_form): Set loop->aux.
+
+	* tree-vectorizer.h (NITERS_KNOWN_P): New.
+	* tree-vect-analyze.c (vect_analyze_loop_form): Call NITERS_KNOWN_P 
+	instead of LOOP_VINFO_INT_NITERS to avoid having to geneate loop_info.
+
+	* tree-vect-analyze.c (vect_determine_vectorization_factor): Add 
+	dump print.
+	(vect_analyze_operations): Fix indenetation.  Fix a comment.  Fix a
+	print message.
+	(vect_analyze_scalar_cycles): Fix indentation.
+	(vect_enhance_data_refs_alignment): Fix check in case of peeling.
+	(vect_mark_relevant): Include phis in relevance analysis.
+
+	* tree-vect-transform.c (vect_transform_loop): Add an assert.
+
 2007-04-18  Anatoly Sokolov <aesok@post.ru>
 
 	* config/avr/avr.c (ptrreg_to_str): Replace error() with

gcc/tree-vect-analyze.c

@@ -262,7 +262,8 @@ vect_determine_vectorization_factor (loop_vec_info loop_vinfo)
     }
 
   /* TODO: Analyze cost. Decide if worth while to vectorize.  */
-
+  if (vect_print_dump_info (REPORT_DETAILS))
+    fprintf (vect_dump, "vectorization factor = %d", vectorization_factor);
   if (vectorization_factor <= 1)
     {
       if (vect_print_dump_info (REPORT_UNVECTORIZED_LOOPS))
@@ -1434,6 +1435,7 @@ static bool
 vect_enhance_data_refs_alignment (loop_vec_info loop_vinfo)
 {
   VEC (data_reference_p, heap) *datarefs = LOOP_VINFO_DATAREFS (loop_vinfo);
+  struct loop *loop = LOOP_VINFO_LOOP (loop_vinfo);
   enum dr_alignment_support supportable_dr_alignment;
   struct data_reference *dr0 = NULL;
   struct data_reference *dr;
@@ -1531,7 +1533,8 @@ vect_enhance_data_refs_alignment (loop_vec_info loop_vinfo)
 
   /* Often peeling for alignment will require peeling for loop-bound, which in 
      turn requires that we know how to adjust the loop ivs after the loop.  */
-  if (!vect_can_advance_ivs_p (loop_vinfo))
+  if (!vect_can_advance_ivs_p (loop_vinfo)
+      || !slpeel_can_duplicate_loop_p (loop, single_exit (loop)))
     do_peeling = false;
 
   if (do_peeling)
@@ -2641,10 +2644,7 @@ vect_analyze_loop_form (struct loop *loop)
       return false;
     }
 
-  loop_vinfo = new_loop_vec_info (loop);
-  LOOP_VINFO_NITERS (loop_vinfo) = number_of_iterations;
-
-  if (!LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo))
+  if (!NITERS_KNOWN_P (number_of_iterations))
     {
       if (vect_print_dump_info (REPORT_DETAILS))
         {
@@ -2652,16 +2652,19 @@ vect_analyze_loop_form (struct loop *loop)
           print_generic_expr (vect_dump, number_of_iterations, TDF_DETAILS);
         }
     }
-  else
-  if (LOOP_VINFO_INT_NITERS (loop_vinfo) == 0)
+  else if (TREE_INT_CST_LOW (number_of_iterations) == 0)
     {
       if (vect_print_dump_info (REPORT_UNVECTORIZED_LOOPS))
         fprintf (vect_dump, "not vectorized: number of iterations = 0.");
       return NULL;
     }
 
+  loop_vinfo = new_loop_vec_info (loop);
+  LOOP_VINFO_NITERS (loop_vinfo) = number_of_iterations;
   LOOP_VINFO_EXIT_COND (loop_vinfo) = loop_cond;
 
+  gcc_assert (!loop->aux);
+  loop->aux = loop_vinfo;
   return loop_vinfo;
 }
 

gcc/tree-vect-transform.c

@@ -5258,6 +5258,7 @@ vect_transform_loop (loop_vec_info loop_vinfo)
 	      continue;
 	    }
 
+	  gcc_assert (STMT_VINFO_VECTYPE (stmt_info));
 	  if ((TYPE_VECTOR_SUBPARTS (STMT_VINFO_VECTYPE (stmt_info))
 		 != (unsigned HOST_WIDE_INT) vectorization_factor)
 	      && vect_print_dump_info (REPORT_DETAILS))

gcc/tree-vectorizer.c

@@ -1511,6 +1511,7 @@ destroy_loop_vec_info (loop_vec_info loop_vinfo)
   VEC_free (tree, heap, LOOP_VINFO_MAY_MISALIGN_STMTS (loop_vinfo));
 
   free (loop_vinfo);
+  loop->aux = NULL;
 }
 
 

gcc/tree-vectorizer.h

@@ -151,9 +151,12 @@ typedef struct _loop_vec_info {
 #define LOOP_VINFO_MAY_MISALIGN_STMTS(L) (L)->may_misalign_stmts
 #define LOOP_VINFO_LOC(L)             (L)->loop_line_number
 
+#define NITERS_KNOWN_P(n)                     \
+(host_integerp ((n),0)                        \
+&& TREE_INT_CST_LOW ((n)) > 0)
+
 #define LOOP_VINFO_NITERS_KNOWN_P(L)                     \
-(host_integerp ((L)->num_iters,0)                        \
-&& TREE_INT_CST_LOW ((L)->num_iters) > 0)
+NITERS_KNOWN_P((L)->num_iters)
 
 /*-----------------------------------------------------------------*/
 /* Info on vectorized defs.                                        */