re PR tree-optimization/51485 (ICE in vectorizable_assignment)

	PR tree-optimization/51485
	* tree-vect-data-refs.c (vect_analyze_data_refs): Give up on
	DRs in call stmts.

	* g++.dg/vect/pr51485.cc: New test.

From-SVN: r182212

gcc/ChangeLog

+2011-12-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/51485
+	* tree-vect-data-refs.c (vect_analyze_data_refs): Give up on
+	DRs in call stmts.
+
 2011-12-11  Patrick Marlier  <patrick.marlier@gmail.com>
 
 	* trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove

gcc/testsuite/ChangeLog

+2011-12-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/51485
+	* g++.dg/vect/pr51485.cc: New test.
+
 2011-12-11  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/50923

gcc/testsuite/g++.dg/vect/pr51485.cc

+/* { dg-do compile } */
+
+struct A { A (); unsigned int a; };
+double bar (A a) throw () __attribute__((pure));
+
+void
+foo (unsigned int x, double *y, A *z)
+{
+  unsigned int i;
+  for (i = 0; i < x; i++)
+    y[i] = bar (z[i]);
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */

gcc/tree-vect-data-refs.c

@@ -2896,6 +2896,26 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo,
           return false;
         }
 
+      if (is_gimple_call (stmt))
+	{
+	  if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS))
+	    {
+	      fprintf (vect_dump, "not vectorized: dr in a call ");
+	      print_gimple_stmt (vect_dump, stmt, 0, TDF_SLIM);
+	    }
+
+	  if (bb_vinfo)
+	    {
+	      STMT_VINFO_VECTORIZABLE (stmt_info) = false;
+	      stop_bb_analysis = true;
+	      continue;
+	    }
+
+	  if (gather)
+	    free_data_ref (dr);
+	  return false;
+	}
+
       /* Update DR field in stmt_vec_info struct.  */
 
       /* If the dataref is in an inner-loop of the loop that is considered for