From: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>

Signed-off-by: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>
Reviewed-by: Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241007025700.47259-8-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.h     | 2 +-
 tcg/riscv/tcg-target.c.inc | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h
index 94034504b2..ae10381e02 100644
--- a/tcg/riscv/tcg-target.h
+++ b/tcg/riscv/tcg-target.h
@@ -152,7 +152,7 @@ typedef enum {
 #define TCG_TARGET_HAS_nor_vec          0
 #define TCG_TARGET_HAS_eqv_vec          0
 #define TCG_TARGET_HAS_not_vec          1
-#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_roti_vec         0
 #define TCG_TARGET_HAS_rots_vec         0
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 1893c419c6..ce8d6d0293 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -276,6 +276,7 @@ typedef enum {
     OPC_VADD_VV = 0x57 | V_OPIVV,
     OPC_VADD_VI = 0x57 | V_OPIVI,
     OPC_VSUB_VV = 0x8000057 | V_OPIVV,
+    OPC_VRSUB_VI = 0xc000057 | V_OPIVI,
     OPC_VAND_VV = 0x24000057 | V_OPIVV,
     OPC_VAND_VI = 0x24000057 | V_OPIVI,
     OPC_VOR_VV = 0x28000057 | V_OPIVV,
@@ -2367,6 +2368,10 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
         set_vtype_len(s, type);
         tcg_out_opc_vi(s, OPC_VXOR_VI, a0, a1, -1);
         break;
+    case INDEX_op_neg_vec:
+        set_vtype_len_sew(s, type, vece);
+        tcg_out_opc_vi(s, OPC_VRSUB_VI, a0, a1, 0);
+        break;
     case INDEX_op_cmp_vec:
         tcg_out_cmpsel(s, type, vece, args[3], a0, a1, a2, c2,
                        -1, true, 0, true);
@@ -2397,6 +2402,7 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece)
     case INDEX_op_or_vec:
     case INDEX_op_xor_vec:
     case INDEX_op_not_vec:
+    case INDEX_op_neg_vec:
     case INDEX_op_cmp_vec:
     case INDEX_op_cmpsel_vec:
         return 1;
@@ -2550,6 +2556,7 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
     case INDEX_op_dupm_vec:
     case INDEX_op_ld_vec:
         return C_O1_I1(v, r);
+    case INDEX_op_neg_vec:
     case INDEX_op_not_vec:
         return C_O1_I1(v, v);
     case INDEX_op_add_vec:
-- 
2.43.0