[PATCH] Fix PR91114

[Richard Biener]

The following fixes PR91114.  It's not really the most desirable
solution but hey.

Bootstrapped / tested on x86_64-unknown-linux-gnu, applied to trunk.

Richard.

2019-07-09  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/91114
        * tree-vect-data-refs.c (vect_analyze_data_refs): Failure to
        find a vector type isn't fatal.

        * gcc.dg/vect/pr91114.c: New testcase.

Index: gcc/tree-vect-data-refs.c
===================================================================
--- gcc/tree-vect-data-refs.c   (revision 273294)
+++ gcc/tree-vect-data-refs.c   (working copy)
@@ -4360,6 +4360,8 @@ vect_analyze_data_refs (vec_info *vinfo,
              STMT_VINFO_VECTORIZABLE (stmt_info) = false;
              continue;
            }
+         if (fatal)
+           *fatal = false;
          return opt_result::failure_at (stmt_info->stmt,
                                         "not vectorized:"
                                         " no vectype for stmt: %G"
Index: gcc/testsuite/gcc.dg/vect/pr91114.c
===================================================================
--- gcc/testsuite/gcc.dg/vect/pr91114.c (nonexistent)
+++ gcc/testsuite/gcc.dg/vect/pr91114.c (working copy)
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-fopenmp-simd" } */
+
+void
+ne (double *zu)
+{
+  int h3;
+
+#pragma omp simd simdlen (4)
+  for (h3 = 0; h3 < 4; ++h3)
+    zu[h3] = 0;
+}