tcg: Implement gvec support for rotate by vector

No host backend support yet, but the interfaces for rotlv
and rotrv are in place.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Drop the generic expansion from rot to shift; we can do better
    for each backend, and then this code becomes unused.

1 files changed, 3 insertions, 0 deletions

diff --git a/tcg/tcg.c b/tcg/tcg.c
index 73a3a4fb9e..bd6ffab79b 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1663,6 +1663,9 @@ bool tcg_op_supported(TCGOpcode op)
         return have_vec && TCG_TARGET_HAS_shv_vec;
     case INDEX_op_rotli_vec:
         return have_vec && TCG_TARGET_HAS_roti_vec;
+    case INDEX_op_rotlv_vec:
+    case INDEX_op_rotrv_vec:
+        return have_vec && TCG_TARGET_HAS_rotv_vec;
     case INDEX_op_ssadd_vec:
     case INDEX_op_usadd_vec:
     case INDEX_op_sssub_vec: