testsuite: add sve hw check to testcase [PR120817]

Drop down from SVE2 to SVE1 as that's the minimum
required for the test, and since it's a mid-end test
add the aarch64_sve_hw check.

gcc/testsuite/ChangeLog:

	PR tree-optimization/120817
	* gcc.dg/vect/pr120817.c: Add SVE HW check.

(cherry picked from commit 4b9f760c511a4ef3a390dd6cfab80bada57c2535)

diff --git a/gcc/testsuite/gcc.dg/vect/pr120817.c b/gcc/testsuite/gcc.dg/vect/pr120817.c
index d8f55c9b98d222afa782624f54e28945336b71ff..199189a8b9ad11b5efa2745e555cee6508e1dd35 100644 (file)
--- a/gcc/testsuite/gcc.dg/vect/pr120817.c
+++ b/gcc/testsuite/gcc.dg/vect/pr120817.c
@@ -1,5 +1,6 @@
 /* { dg-additional-options "-O1" } */
-/* { dg-additional-options "-mcpu=neoverse-n2" { target aarch64*-*-* } } */
+/* { dg-require-effective-target aarch64_sve_hw { target aarch64*-*-* } } */
+/* { dg-additional-options "-march=armv8-a+sve -mtune=neoverse-n2" { target aarch64*-*-* } } */
 
 #include "tree-vect.h"