tcg: Add support for vector compare select

Perform a per-element conditional move.  This combination operation is
easier to implement on some host vector units than plain cmp+bitsel.
Omit the usual gvec interface, as this is intended to be used by
target-specific gvec expansion call-backs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/tcg/tcg.c b/tcg/tcg.c
index 5d947db..02a2680 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1648,6 +1648,8 @@ bool tcg_op_supported(TCGOpcode op)
         return have_vec && TCG_TARGET_HAS_minmax_vec;
     case INDEX_op_bitsel_vec:
         return have_vec && TCG_TARGET_HAS_bitsel_vec;
+    case INDEX_op_cmpsel_vec:
+        return have_vec && TCG_TARGET_HAS_cmpsel_vec;
 
     default:
         tcg_debug_assert(op > INDEX_op_last_generic && op < NB_OPS);
@@ -2028,6 +2030,7 @@ static void tcg_dump_ops(TCGContext *s, bool have_prefs)
             case INDEX_op_setcond_i64:
             case INDEX_op_movcond_i64:
             case INDEX_op_cmp_vec:
+            case INDEX_op_cmpsel_vec:
                 if (op->args[k] < ARRAY_SIZE(cond_name)
                     && cond_name[op->args[k]]) {
                     col += qemu_log(",%s", cond_name[op->args[k++]]);