tcg: Promote tcg_out_{dup,dupi}_vec to backend interface

[mirror_qemu.git] / tcg / optimize.c

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 5150c38a251a0fe43c73a8f6ace77560a0839022..24faa0626065bd7a68804bf1f90cad13a184f4c7 100644 (file)
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -734,9 +734,13 @@ void tcg_optimize(TCGContext *s)
                 } else if (opc == INDEX_op_sub_i64) {
                     neg_op = INDEX_op_neg_i64;
                     have_neg = TCG_TARGET_HAS_neg_i64;
-                } else {
+                } else if (TCG_TARGET_HAS_neg_vec) {
+                    TCGType type = TCGOP_VECL(op) + TCG_TYPE_V64;
+                    unsigned vece = TCGOP_VECE(op);
                     neg_op = INDEX_op_neg_vec;
-                    have_neg = TCG_TARGET_HAS_neg_vec;
+                    have_neg = tcg_can_emit_vec_op(neg_op, type, vece) > 0;
+                } else {
+                    break;
                 }
                 if (!have_neg) {
                     break;