re PR tree-optimization/33833 (ICE in build2_stat, at tree.c:3110 at -O3, tree-vectorizer)

	PR tree-optimization/33833
	* tree-vect-analyze.c (vect_analyze_data_refs): Use POINTER_PLUS_EXPR
	and convert init to sizetype in inner_base construction.

From-SVN: r129628

gcc/ChangeLog

+2007-10-25  Ira Rosen  <irar@il.ibm.com>
+
+	PR tree-optimization/33833
+	* tree-vect-analyze.c (vect_analyze_data_refs): Use POINTER_PLUS_EXPR
+	and convert init to sizetype in inner_base construction.
+
 2007-10-25  Richard Guenther  <rguenther@suse.de>
 
 	* tree-flow.h (mem_sym_stats): Remove.

gcc/testsuite/ChangeLog

+2007-10-25  Martin Michlmayr <tbm@cyrius.com>
+            Ira Rosen  <irar@il.ibm.com>
+
+	PR tree-optimization/33833
+	* gcc.dg/vect/pr33833.c: New testcase.
+
 2007-10-25  David Daney  <ddaney@avtrex.com>
 
 	* gcc.dg/tree-ssa/20040204-1.c: Un-xfail for mips*-*-*.

gcc/testsuite/gcc.dg/vect/pr33833.c

+/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
+/* { dg-do compile } */
+
+struct list_head
+{
+  struct list_head *prev;
+};
+struct prio_array
+{
+  struct list_head queue[100];
+};
+struct rq
+{
+  struct prio_array *active, arrays[2];
+} per_cpu__runqueues;
+
+void sched_init (unsigned long __ptr)
+{
+  int j, k;
+  struct prio_array *array;
+  struct rq *rq;
+  rq = (&(*( { (typeof (&per_cpu__runqueues)) (__ptr); } )));
+  for (j = 0; j < 2; j++)
+  {
+    array = rq->arrays + j;
+    for (k = 0; k < 100; k++)
+        (array->queue + k)->prev = array->queue;
+  }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */

gcc/tree-vect-analyze.c

@@ -3287,10 +3287,11 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo)
 
 	  /* Build a reference to the first location accessed by the 
 	     inner-loop: *(BASE+INIT). (The first location is actually
-	     BASE+INIT+OFFSET, but we add OFFSET separately later.  */
-	  tree inner_base = build_fold_indirect_ref 
-				(fold_build2 (PLUS_EXPR, 
-					      TREE_TYPE (base), base, init));
+	     BASE+INIT+OFFSET, but we add OFFSET separately later).  */
+          tree inner_base = build_fold_indirect_ref
+                                (fold_build2 (POINTER_PLUS_EXPR,
+                                              TREE_TYPE (base), base, 
+                                              fold_convert (sizetype, init)));
 
 	  if (vect_print_dump_info (REPORT_DETAILS))
 	    {