diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
index e5c9ab70a9..3b5a5d78c7 100644
--- a/tcg/aarch64/tcg-target.inc.c
+++ b/tcg/aarch64/tcg-target.inc.c
@@ -856,7 +856,7 @@ static void tcg_out_logicali(TCGContext *s, AArch64Insn insn, TCGType ext,
 }
 
 static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
-                             TCGReg rd, tcg_target_long v64)
+                             TCGReg rd, int64_t v64)
 {
     bool q = type == TCG_TYPE_V128;
     int cmode, imm8, i;
diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index 07424f7ef9..9cb627d6eb 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -945,7 +945,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
 }
 
 static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
-                             TCGReg ret, tcg_target_long arg)
+                             TCGReg ret, int64_t arg)
 {
     int vex_l = (type == TCG_TYPE_V256 ? P_VEXL : 0);
 
@@ -958,7 +958,14 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
         return;
     }
 
-    if (TCG_TARGET_REG_BITS == 64) {
+    if (TCG_TARGET_REG_BITS == 32 && arg == dup_const(MO_32, arg)) {
+        if (have_avx2) {
+            tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTW + vex_l, ret);
+        } else {
+            tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSS, ret);
+        }
+        new_pool_label(s, arg, R_386_32, s->code_ptr - 4, 0);
+    } else {
         if (type == TCG_TYPE_V64) {
             tcg_out_vex_modrm_pool(s, OPC_MOVQ_VqWq, ret);
         } else if (have_avx2) {
@@ -966,14 +973,11 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
         } else {
             tcg_out_vex_modrm_pool(s, OPC_MOVDDUP, ret);
         }
-        new_pool_label(s, arg, R_386_PC32, s->code_ptr - 4, -4);
-    } else {
-        if (have_avx2) {
-            tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTW + vex_l, ret);
+        if (TCG_TARGET_REG_BITS == 64) {
+            new_pool_label(s, arg, R_386_PC32, s->code_ptr - 4, -4);
         } else {
-            tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSS, ret);
+            new_pool_l2(s, R_386_32, s->code_ptr - 4, 0, arg, arg >> 32);
         }
-        new_pool_label(s, arg, R_386_32, s->code_ptr - 4, 0);
     }
 }
 
diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c
index 7ab1e32064..3333b55766 100644
--- a/tcg/ppc/tcg-target.inc.c
+++ b/tcg/ppc/tcg-target.inc.c
@@ -913,7 +913,7 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret,
 }
 
 static void tcg_out_dupi_vec(TCGContext *s, TCGType type, TCGReg ret,
-                             tcg_target_long val)
+                             int64_t val)
 {
     uint32_t load_insn;
     int rel, low;
@@ -921,20 +921,20 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, TCGReg ret,
 
     low = (int8_t)val;
     if (low >= -16 && low < 16) {
-        if (val == (tcg_target_long)dup_const(MO_8, low)) {
+        if (val == dup_const(MO_8, low)) {
             tcg_out32(s, VSPLTISB | VRT(ret) | ((val & 31) << 16));
             return;
         }
-        if (val == (tcg_target_long)dup_const(MO_16, low)) {
+        if (val == dup_const(MO_16, low)) {
             tcg_out32(s, VSPLTISH | VRT(ret) | ((val & 31) << 16));
             return;
         }
-        if (val == (tcg_target_long)dup_const(MO_32, low)) {
+        if (val == dup_const(MO_32, low)) {
             tcg_out32(s, VSPLTISW | VRT(ret) | ((val & 31) << 16));
             return;
         }
     }
-    if (have_isa_3_00 && val == (tcg_target_long)dup_const(MO_8, val)) {
+    if (have_isa_3_00 && val == dup_const(MO_8, val)) {
         tcg_out32(s, XXSPLTIB | VRT(ret) | ((val & 0xff) << 11));
         return;
     }
@@ -956,14 +956,15 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, TCGReg ret,
         if (TCG_TARGET_REG_BITS == 64) {
             new_pool_label(s, val, rel, s->code_ptr, add);
         } else {
-            new_pool_l2(s, rel, s->code_ptr, add, val, val);
+            new_pool_l2(s, rel, s->code_ptr, add, val >> 32, val);
         }
     } else {
         load_insn = LVX | VRT(ret) | RB(TCG_REG_TMP1);
         if (TCG_TARGET_REG_BITS == 64) {
             new_pool_l2(s, rel, s->code_ptr, add, val, val);
         } else {
-            new_pool_l4(s, rel, s->code_ptr, add, val, val, val, val);
+            new_pool_l4(s, rel, s->code_ptr, add,
+                        val >> 32, val, val >> 32, val);
         }
     }
 
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 4f1ed1d2fe..fc1c97d586 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -117,7 +117,7 @@ static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece,
 static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
                              TCGReg dst, TCGReg base, intptr_t offset);
 static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
-                             TCGReg dst, tcg_target_long arg);
+                             TCGReg dst, int64_t arg);
 static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, unsigned vecl,
                            unsigned vece, const TCGArg *args,
                            const int *const_args);
@@ -133,7 +133,7 @@ static inline bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
     g_assert_not_reached();
 }
 static inline void tcg_out_dupi_vec(TCGContext *s, TCGType type,
-                                    TCGReg dst, tcg_target_long arg)
+                                    TCGReg dst, int64_t arg)
 {
     g_assert_not_reached();
 }
