diff --git a/tcg/tcg.c b/tcg/tcg.c
index b971909c3f..350ab5948e 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -134,7 +134,7 @@ static void tcg_out_addi_ptr(TCGContext *s, TCGReg, TCGReg, tcg_target_long);
 static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2);
 static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg);
 static void tcg_out_goto_tb(TCGContext *s, int which);
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS]);
 #if TCG_TARGET_MAYBE_vec
@@ -5423,7 +5423,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
             tcg_out_vec_op(s, op->opc, TCGOP_TYPE(op) - TCG_TYPE_V64,
                            TCGOP_VECE(op), new_args, const_args);
         } else {
-            tcg_out_op(s, op->opc, new_args, const_args);
+            tcg_out_op(s, op->opc, TCGOP_TYPE(op), new_args, const_args);
         }
         break;
     }
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 9116f85667..ede6f47235 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -2115,14 +2115,10 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     flush_idcache_range(jmp_rx, jmp_rw, 4);
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType ext,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
-    /* 99% of the time, we can signal the use of extension registers
-       by looking to see if the opcode handles 64-bit data.  */
-    TCGType ext = (tcg_op_defs[opc].flags & TCG_OPF_64BIT) != 0;
-
     /* Hoist the loads of the most common arguments.  */
     TCGArg a0 = args[0];
     TCGArg a1 = args[1];
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index 182cac1a8a..9cfb733a14 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -1805,7 +1805,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     flush_idcache_range(jmp_rx, jmp_rw, 4);
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 64826c7419..e51269f81d 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -2612,12 +2612,12 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     /* no need to flush icache explicitly */
 }
 
-static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
-                              const TCGArg args[TCG_MAX_OP_ARGS],
-                              const int const_args[TCG_MAX_OP_ARGS])
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
+                       const TCGArg args[TCG_MAX_OP_ARGS],
+                       const int const_args[TCG_MAX_OP_ARGS])
 {
     TCGArg a0, a1, a2;
-    int c, const_a2, vexop, rexw = 0;
+    int c, const_a2, vexop, rexw;
 
 #if TCG_TARGET_REG_BITS == 64
 # define OP_32_64(x) \
@@ -2634,6 +2634,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
     a1 = args[1];
     a2 = args[2];
     const_a2 = const_args[2];
+    rexw = type == TCG_TYPE_I32 ? 0 : P_REXW;
 
     switch (opc) {
     case INDEX_op_goto_ptr:
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 2f0d4d01ff..3dff29facb 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -1278,7 +1278,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     flush_idcache_range(jmp_rx, jmp_rw, 4);
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index b89b279a0e..b31b8f0007 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -1678,7 +1678,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     /* Always indirect, nothing to do */
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 1e7b8a204c..9205ac99e9 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -2940,7 +2940,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     flush_idcache_range(jmp_rx, jmp_rw, 4);
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 432a2fe26f..e381ba4e77 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -1960,7 +1960,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     flush_idcache_range(jmp_rx, jmp_rw, 4);
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc
index e09a726ecf..fc7d986e68 100644
--- a/tcg/s390x/tcg-target.c.inc
+++ b/tcg/s390x/tcg-target.c.inc
@@ -2117,9 +2117,9 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
         case glue(glue(INDEX_op_,x),_i32): \
         case glue(glue(INDEX_op_,x),_i64)
 
-static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
-                              const TCGArg args[TCG_MAX_OP_ARGS],
-                              const int const_args[TCG_MAX_OP_ARGS])
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
+                       const TCGArg args[TCG_MAX_OP_ARGS],
+                       const int const_args[TCG_MAX_OP_ARGS])
 {
     S390Opcode op, op2;
     TCGArg a0, a1, a2;
@@ -2713,7 +2713,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
             /* Since we can't support "0Z" as a constraint, we allow a1 in
                any register.  Fix things up as if a matching constraint.  */
             if (a0 != a1) {
-                TCGType type = (opc == INDEX_op_deposit_i64);
                 if (a0 == a2) {
                     tcg_out_mov(s, type, TCG_TMP0, a2);
                     a2 = TCG_TMP0;
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index 48de490120..afc778fae7 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -1288,7 +1288,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
 {
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 662acbdcb6..88cecbd62f 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -708,7 +708,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb, int n,
     /* Always indirect, nothing to do */
 }
 
-static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type,
                        const TCGArg args[TCG_MAX_OP_ARGS],
                        const int const_args[TCG_MAX_OP_ARGS])
 {
@@ -790,7 +790,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     CASE_32_64(sextract) /* Optional (TCG_TARGET_HAS_sextract_*). */
         {
             TCGArg pos = args[2], len = args[3];
-            TCGArg max = tcg_op_defs[opc].flags & TCG_OPF_64BIT ? 64 : 32;
+            TCGArg max = type == TCG_TYPE_I32 ? 32 : 64;
 
             tcg_debug_assert(pos < max);
             tcg_debug_assert(pos + len <= max);
