As this showed: https://godbolt.org/z/3K9oK7fx3
ARM SVE 2 times for FOLD_EXTRACT_LAST wheras RVV 4 times.
This is because RISC-V doesn't enable vec_pack_trunc so we will failed
conversion and fold_extract_last at the first time analysis.
Then we succeed at the second time.
So RVV has 4 times of showing "FOLD_EXTRACT_LAST:.
gcc/testsuite/ChangeLog:
* gcc.dg/vect/vect-cond-reduc-4.c: Add vect_pack_trunc variant.
---
gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.c
b/gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.c
index 8820075b1dc..8ea8c538713 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.c
@@ -42,6 +42,7 @@ main (void)
}
/* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 2 "vect" } } */
-/* { dg-final { scan-tree-dump-times "optimizing condition reduction with
FOLD_EXTRACT_LAST" 2 "vect" { target vect_fold_extract_last } } } */
+/* { dg-final { scan-tree-dump-times "optimizing condition reduction with
FOLD_EXTRACT_LAST" 2 "vect" { target { vect_fold_extract_last &&
vect_pack_trunc } } } } */
+/* { dg-final { scan-tree-dump-times "optimizing condition reduction with
FOLD_EXTRACT_LAST" 4 "vect" { target { { vect_fold_extract_last } && { !
vect_pack_trunc } } } } } */
/* { dg-final { scan-tree-dump-times "condition expression based on integer
induction." 2 "vect" { target { ! vect_fold_extract_last } } } } */
--
2.36.3
