RVV didn't explictly enable DIV_POW2 optab but we cen vectorize it.
We should check pattern recognition instead of explicit pattern check.

gcc/testsuite/ChangeLog:

        * gcc.dg/vect/vect-sdiv-pow2-1.c: Fix dump check.

---
 gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c 
b/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c
index 49ecbe216f2..8056c2a6748 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-sdiv-pow2-1.c
@@ -79,5 +79,5 @@ main (void)
   return 0;
 }
 
-/* { dg-final { scan-tree-dump {\.DIV_POW2} "vect" { target vect_sdiv_pow2_si 
} } } */
+/* { dg-final { scan-tree-dump "vect_recog_divmod_pattern: detected" "vect" } 
} */
 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 18 "vect" { target 
vect_sdiv_pow2_si } } } */
-- 
2.36.3

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