diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index f043a2f9b6..0fc58735b9 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -2196,6 +2196,15 @@ INSN_LASX(xvssrarni_hu_w,    vv_i)
 INSN_LASX(xvssrarni_wu_d,    vv_i)
 INSN_LASX(xvssrarni_du_q,    vv_i)
 
+INSN_LASX(xvclo_b,           vv)
+INSN_LASX(xvclo_h,           vv)
+INSN_LASX(xvclo_w,           vv)
+INSN_LASX(xvclo_d,           vv)
+INSN_LASX(xvclz_b,           vv)
+INSN_LASX(xvclz_h,           vv)
+INSN_LASX(xvclz_w,           vv)
+INSN_LASX(xvclz_d,           vv)
+
 INSN_LASX(xvreplgr2vr_b,     vr)
 INSN_LASX(xvreplgr2vr_h,     vr)
 INSN_LASX(xvreplgr2vr_w,     vr)
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc b/target/loongarch/insn_trans/trans_lasx.c.inc
index d0440dea2a..80a566b948 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -515,6 +515,15 @@ TRANS(xvssrarni_hu_w, gen_vv_i, 32, gen_helper_vssrarni_hu_w)
 TRANS(xvssrarni_wu_d, gen_vv_i, 32, gen_helper_vssrarni_wu_d)
 TRANS(xvssrarni_du_q, gen_vv_i, 32, gen_helper_vssrarni_du_q)
 
+TRANS(xvclo_b, gen_vv, 32, gen_helper_vclo_b)
+TRANS(xvclo_h, gen_vv, 32, gen_helper_vclo_h)
+TRANS(xvclo_w, gen_vv, 32, gen_helper_vclo_w)
+TRANS(xvclo_d, gen_vv, 32, gen_helper_vclo_d)
+TRANS(xvclz_b, gen_vv, 32, gen_helper_vclz_b)
+TRANS(xvclz_h, gen_vv, 32, gen_helper_vclz_h)
+TRANS(xvclz_w, gen_vv, 32, gen_helper_vclz_w)
+TRANS(xvclz_d, gen_vv, 32, gen_helper_vclz_d)
+
 TRANS(xvreplgr2vr_b, gvec_dup, 32, MO_8)
 TRANS(xvreplgr2vr_h, gvec_dup, 32, MO_16)
 TRANS(xvreplgr2vr_w, gvec_dup, 32, MO_32)
diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index dc74bae7a5..3175532045 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -1770,6 +1770,15 @@ xvssrarni_hu_w   0111 01110110 11001 ..... ..... .....    @vv_ui5
 xvssrarni_wu_d   0111 01110110 1101 ...... ..... .....    @vv_ui6
 xvssrarni_du_q   0111 01110110 111 ....... ..... .....    @vv_ui7
 
+xvclo_b          0111 01101001 11000 00000 ..... .....    @vv
+xvclo_h          0111 01101001 11000 00001 ..... .....    @vv
+xvclo_w          0111 01101001 11000 00010 ..... .....    @vv
+xvclo_d          0111 01101001 11000 00011 ..... .....    @vv
+xvclz_b          0111 01101001 11000 00100 ..... .....    @vv
+xvclz_h          0111 01101001 11000 00101 ..... .....    @vv
+xvclz_w          0111 01101001 11000 00110 ..... .....    @vv
+xvclz_d          0111 01101001 11000 00111 ..... .....    @vv
+
 xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @vr
 xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @vr
 xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @vr
diff --git a/target/loongarch/vec.h b/target/loongarch/vec.h
index 67d829f9da..4497cd4a6d 100644
--- a/target/loongarch/vec.h
+++ b/target/loongarch/vec.h
@@ -76,4 +76,13 @@
 
 #define R_SHIFT(a, b) (a >> b)
 
+#define DO_CLO_B(N)  (clz32(~N & 0xff) - 24)
+#define DO_CLO_H(N)  (clz32(~N & 0xffff) - 16)
+#define DO_CLO_W(N)  (clz32(~N))
+#define DO_CLO_D(N)  (clz64(~N))
+#define DO_CLZ_B(N)  (clz32(N) - 24)
+#define DO_CLZ_H(N)  (clz32(N) - 16)
+#define DO_CLZ_W(N)  (clz32(N))
+#define DO_CLZ_D(N)  (clz64(N))
+
 #endif /* LOONGARCH_VEC_H */
diff --git a/target/loongarch/vec_helper.c b/target/loongarch/vec_helper.c
index 94f3f13456..2706daa1e0 100644
--- a/target/loongarch/vec_helper.c
+++ b/target/loongarch/vec_helper.c
@@ -2161,22 +2161,13 @@ void HELPER(NAME)(void *vd, void *vj, uint32_t desc) \
     int i;                                           \
     VReg *Vd = (VReg *)vd;                           \
     VReg *Vj = (VReg *)vj;                           \
+    int oprsz = simd_oprsz(desc);                    \
                                                      \
-    for (i = 0; i < LSX_LEN/BIT; i++)                \
-    {                                                \
+    for (i = 0; i < oprsz / (BIT / 8); i++) {        \
         Vd->E(i) = DO_OP(Vj->E(i));                  \
     }                                                \
 }
 
-#define DO_CLO_B(N)  (clz32(~N & 0xff) - 24)
-#define DO_CLO_H(N)  (clz32(~N & 0xffff) - 16)
-#define DO_CLO_W(N)  (clz32(~N))
-#define DO_CLO_D(N)  (clz64(~N))
-#define DO_CLZ_B(N)  (clz32(N) - 24)
-#define DO_CLZ_H(N)  (clz32(N) - 16)
-#define DO_CLZ_W(N)  (clz32(N))
-#define DO_CLZ_D(N)  (clz64(N))
-
 DO_2OP(vclo_b, 8, UB, DO_CLO_B)
 DO_2OP(vclo_h, 16, UH, DO_CLO_H)
 DO_2OP(vclo_w, 32, UW, DO_CLO_W)
