[PATCH v1] LoongArch: testsuite:Add loongarch to gcc.dg/vect/slp-21.c.

[PATCH v1] LoongArch: testsuite:Add loongarch to gcc.dg/vect/slp-21.c.

[chenxiaolong]

In the GCC code of LoongArch architecture, IFN_STORE_LANES optimization
operation is not supported, and four SLP statements are used for vectorization
in slp-21.c. So add loongarch*-*-* to the corresponding dg-finals.

gcc/testsuite/ChangeLog:

	* gcc.dg/vect/slp-21.c: Add loongarch.
---
 gcc/testsuite/gcc.dg/vect/slp-21.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/vect/slp-21.c b/gcc/testsuite/gcc.dg/vect/slp-21.c
index 712a73b69d7..58751688414 100644
--- a/gcc/testsuite/gcc.dg/vect/slp-21.c
+++ b/gcc/testsuite/gcc.dg/vect/slp-21.c
@@ -213,7 +213,7 @@ int main (void)
 
    Not all vect_perm targets support that, and it's a bit too specific to have
    its own effective-target selector, so we just test targets directly.  */
-/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect" { target { powerpc64*-*-* s390*-*-* } } } } */
-/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target { vect_strided4 && { ! { powerpc64*-*-* s390*-*-* } } } } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect" { target { powerpc64*-*-* s390*-*-* loongarch*-*-* } } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target { vect_strided4 && { ! { powerpc64*-*-* s390*-*-* loongarch*-*-* } } } } } } */
 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect"  { target { ! { vect_strided4 } } } } } */
   
-- 
2.20.1