Fix scan pattern of vect-8.f90 dump.

	PR testsuite/94402
	* gfortran.dg/vect/vect-8.f90: Allow 22 or 23 loops
	to be vectorized (based on libmvec presence).

gcc/testsuite/ChangeLog

+2020-03-30  Martin Liska  <mliska@suse.cz>
+
+	PR testsuite/94402
+	* gfortran.dg/vect/vect-8.f90: Allow 22 or 23 loops
+	to be vectorized (based on libmvec presence).
+
 2020-03-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/93069

gcc/testsuite/gfortran.dg/vect/vect-8.f90

@@ -705,5 +705,5 @@ RETURN
 END SUBROUTINE kernel
 
 ! { dg-final { scan-tree-dump-times "vectorized 23 loops" 1 "vect" { target aarch64*-*-* } } }
-! { dg-final { scan-tree-dump-times "vectorized 22 loops" 1 "vect" { target { vect_intdouble_cvt && { ! aarch64*-*-* } } } } }
+! { dg-final { scan-tree-dump-times "vectorized 2\[23\] loops" 1 "vect" { target { vect_intdouble_cvt && { ! aarch64*-*-* } } } } }
 ! { dg-final { scan-tree-dump-times "vectorized 17 loops" 1 "vect" { target { { ! vect_intdouble_cvt } && { ! aarch64*-*-* } } } } }