After recent RVV cost model tweak, I found this PR issue has been fixed.
Add testcase and committed.
PR target/112387
gcc/testsuite/ChangeLog:
* gcc.dg/vect/costmodel/riscv/rvv/pr112387.c: New test.
---
.../vect/costmodel/riscv/rvv/pr112387.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/pr112387.c
diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/pr112387.c
b/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/pr112387.c
new file mode 100644
index 00000000000..ee44b5f09e8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/costmodel/riscv/rvv/pr112387.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -ftree-vectorize
-fdump-tree-vect-details" } */
+
+#include <stdint-gcc.h>
+
+void
+f2 (uint64_t *__restrict y, uint64_t *__restrict x,
+ uint64_t *__restrict indices, uint64_t n)
+{
+ for (int64_t i = 0; i < n; ++i)
+ {
+ y[i * 2] = x[indices[i * 2]] + 1;
+ y[i * 2 + 1] = x[indices[i * 2 + 1]] + 2;
+ }
+}
+
+/* { dg-final { scan-tree-dump "Loop contains only SLP stmts" vect } } */
+/* { dg-final { scan-assembler-not "vlseg" } } */
+/* { dg-final { scan-assembler-not "vsseg" } } */
--
2.36.3
