Signed-off-by: Jiajie Chen <c@jia.je>
---
 tcg/loongarch64/tcg-target-con-set.h |  1 +
 tcg/loongarch64/tcg-target.c.inc     | 10 ++++++++++
 tcg/loongarch64/tcg-target.h         |  2 +-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index e80fc7f3f7..9fce856012 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -20,6 +20,7 @@ C_O0_I2(rZ, rZ)
 C_O0_I2(w, r)
 C_O1_I1(r, r)
 C_O1_I1(w, r)
+C_O1_I1(w, w)
 C_O1_I2(r, r, rC)
 C_O1_I2(r, r, ri)
 C_O1_I2(r, r, rI)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index fe741ef045..819dcdba77 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -1638,6 +1638,9 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
     static const LoongArchInsn sub_vec_insn[4] = {
         OPC_VSUB_B, OPC_VSUB_H, OPC_VSUB_W, OPC_VSUB_D
     };
+    static const LoongArchInsn neg_vec_insn[4] = {
+        OPC_VNEG_B, OPC_VNEG_H, OPC_VNEG_W, OPC_VNEG_D
+    };
 
     a0 = args[0];
     a1 = args[1];
@@ -1712,6 +1715,9 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_sub_vec:
         tcg_out32(s, encode_vdvjvk_insn(sub_vec_insn[vece], a0, a1, a2));
         break;
+    case INDEX_op_neg_vec:
+        tcg_out32(s, encode_vdvj_insn(neg_vec_insn[vece], a0, a1));
+        break;
     case INDEX_op_dupm_vec:
         tcg_out_dupm_vec(s, type, vece, a0, a1, a2);
         break;
@@ -1736,6 +1742,7 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece)
     case INDEX_op_orc_vec:
     case INDEX_op_xor_vec:
     case INDEX_op_nor_vec:
+    case INDEX_op_neg_vec:
         return 1;
     default:
         return 0;
@@ -1908,6 +1915,9 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
     case INDEX_op_nor_vec:
         return C_O1_I2(w, w, w);
 
+    case INDEX_op_neg_vec:
+        return C_O1_I1(w, w);
+
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 4ca685e752..6a8147875a 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -175,7 +175,7 @@ extern bool use_lsx_instructions;
 #define TCG_TARGET_HAS_v256             0
 
 #define TCG_TARGET_HAS_not_vec          0
-#define TCG_TARGET_HAS_neg_vec          0
+#define TCG_TARGET_HAS_neg_vec          1
 #define TCG_TARGET_HAS_abs_vec          0
 #define TCG_TARGET_HAS_andc_vec         1
 #define TCG_TARGET_HAS_orc_vec          1
-- 
2.42.0

On 8/28/23 08:19, Jiajie Chen wrote:
> Signed-off-by: Jiajie Chen<c@jia.je>
> ---
>   tcg/loongarch64/tcg-target-con-set.h |  1 +
>   tcg/loongarch64/tcg-target.c.inc     | 10 ++++++++++
>   tcg/loongarch64/tcg-target.h         |  2 +-
>   3 files changed, 12 insertions(+), 1 deletion(-)

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

r~