re PR tree-optimization/71006 (ICE: verify_gimple failed (error: type mismatch…

re PR tree-optimization/71006 (ICE: verify_gimple failed (error: type mismatch in conditional expression) w/ -O1 -ftree-loop-vectorize)

gcc/

	PR tree-optimization/71006
	* tree-vect-loop.c (vect_determine_vectorization_factor): Don't
	consider COND_EXPR as a mask producer.

gcc/testsuite/

	PR tree-optimization/71006
	* gcc.dg/pr71006.c: New test.

From-SVN: r236171

gcc/ChangeLog

+2016-05-12  Ilya Enkovich  <ilya.enkovich@intel.com>
+
+	PR tree-optimization/71006
+	* tree-vect-loop.c (vect_determine_vectorization_factor): Don't
+	consider COND_EXPR as a mask producer.
+
 2016-05-12  Marek Polacek  <polacek@redhat.com>
 
 	PR driver/71063

gcc/testsuite/ChangeLog

+2016-05-12  Ilya Enkovich  <ilya.enkovich@intel.com>
+
+	PR tree-optimization/71006
+	* gcc.dg/pr71006.c: New test.
+
 2016-05-12  Marek Polacek  <polacek@redhat.com>
 
 	PR driver/71063

gcc/testsuite/gcc.dg/pr71006.c

+/* PR target/71006 */
+/* { dg-do compile } */
+/* { dg-options "-O1 -ftree-vectorize" } */
+
+unsigned char uu, gu, e2;
+
+void
+fs (void)
+{
+  char *nq = (char *)&gu, *k4 = (char *)&gu;
+  while (*k4 < 1)
+    {
+      uu += (*nq != 0 || e2 != 0);
+      ++*k4;
+    }
+}

gcc/tree-vect-loop.c

@@ -437,7 +437,9 @@ vect_determine_vectorization_factor (loop_vec_info loop_vinfo)
 	      /* Bool ops don't participate in vectorization factor
 		 computation.  For comparison use compared types to
 		 compute a factor.  */
-	      if (TREE_CODE (scalar_type) == BOOLEAN_TYPE)
+	      if (TREE_CODE (scalar_type) == BOOLEAN_TYPE
+		  && is_gimple_assign (stmt)
+		  && gimple_assign_rhs_code (stmt) != COND_EXPR)
 		{
 		  if (STMT_VINFO_RELEVANT_P (stmt_info))
 		    mask_producers.safe_push (stmt_info);