tree-vect-stmts.c (vectorizable_comparison): Add NULL check for vectype.

gcc/

	* tree-vect-stmts.c (vectorizable_comparison): Add
	NULL check for vectype.

gcc/testsuite/

	* gcc.dg/declare-simd.c: New test.

From-SVN: r232917

gcc/ChangeLog

+2016-01-28  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	* tree-vect-stmts.c (vectorizable_comparison): Add
+	NULL check for vectype.
+
 2016-01-28  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/69466

gcc/testsuite/ChangeLog

+2016-01-28  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	* gcc.dg/declare-simd.c: New test.
+
 2016-01-28  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/69466

gcc/testsuite/gcc.dg/declare-simd.c

+/* { dg-do compile } */
+/* { dg-options "-O3 -fopenmp-simd" } */
+
+#pragma omp declare simd linear (p2, p3)
+extern void fn2 (float p1, float *p2, float *p3);
+
+float *a, *b;
+void fn1 (float *p1)
+{
+  int i;
+#pragma omp simd
+  for (i = 0; i < 1000; i++)
+    fn2 (p1[i], a + i, b + i);
+}

gcc/tree-vect-stmts.c

@@ -7764,7 +7764,7 @@ vectorizable_comparison (gimple *stmt, gimple_stmt_iterator *gsi,
   if (!STMT_VINFO_RELEVANT_P (stmt_info) && !bb_vinfo)
     return false;
 
-  if (!VECTOR_BOOLEAN_TYPE_P (vectype))
+  if (!vectype || !VECTOR_BOOLEAN_TYPE_P (vectype))
     return false;
 
   mask_type = vectype;