diff --git a/include/tcg/tcg-opc.h b/include/tcg/tcg-opc.h
index aa9ed393c9..1be9b01caf 100644
--- a/include/tcg/tcg-opc.h
+++ b/include/tcg/tcg-opc.h
@@ -47,6 +47,7 @@ DEF(nand, 1, 2, 0, TCG_OPF_INT)
 DEF(nor, 1, 2, 0, TCG_OPF_INT)
 DEF(or, 1, 2, 0, TCG_OPF_INT)
 DEF(orc, 1, 2, 0, TCG_OPF_INT)
+DEF(sub, 1, 2, 0, TCG_OPF_INT)
 DEF(xor, 1, 2, 0, TCG_OPF_INT)
 
 DEF(setcond_i32, 1, 2, 1, 0)
@@ -62,7 +63,6 @@ DEF(st8_i32, 0, 2, 1, 0)
 DEF(st16_i32, 0, 2, 1, 0)
 DEF(st_i32, 0, 2, 1, 0)
 /* arith */
-DEF(sub_i32, 1, 2, 0, 0)
 DEF(mul_i32, 1, 2, 0, 0)
 DEF(div_i32, 1, 2, 0, 0)
 DEF(divu_i32, 1, 2, 0, 0)
@@ -116,7 +116,6 @@ DEF(st16_i64, 0, 2, 1, 0)
 DEF(st32_i64, 0, 2, 1, 0)
 DEF(st_i64, 0, 2, 1, 0)
 /* arith */
-DEF(sub_i64, 1, 2, 0, 0)
 DEF(mul_i64, 1, 2, 0, 0)
 DEF(div_i64, 1, 2, 0, 0)
 DEF(divu_i64, 1, 2, 0, 0)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 1fe73f70ed..8927b1256c 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -415,7 +415,7 @@ static uint64_t do_constant_folding_2(TCGOpcode op, uint64_t x, uint64_t y)
     case INDEX_op_add:
         return x + y;
 
-    CASE_OP_32_64(sub):
+    case INDEX_op_sub:
         return x - y;
 
     CASE_OP_32_64(mul):
@@ -3054,7 +3054,7 @@ void tcg_optimize(TCGContext *s)
         CASE_OP_32_64(sextract):
             done = fold_sextract(&ctx, op);
             break;
-        CASE_OP_32_64(sub):
+        case INDEX_op_sub:
             done = fold_sub(&ctx, op);
             break;
         case INDEX_op_sub_vec:
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 228aa8f088..15faf4dc57 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -377,7 +377,7 @@ void tcg_gen_addi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
 
 void tcg_gen_sub_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
 {
-    tcg_gen_op3_i32(INDEX_op_sub_i32, ret, arg1, arg2);
+    tcg_gen_op3_i32(INDEX_op_sub, ret, arg1, arg2);
 }
 
 void tcg_gen_subfi_i32(TCGv_i32 ret, int32_t arg1, TCGv_i32 arg2)
@@ -1565,7 +1565,7 @@ void tcg_gen_add_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
 void tcg_gen_sub_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
 {
     if (TCG_TARGET_REG_BITS == 64) {
-        tcg_gen_op3_i64(INDEX_op_sub_i64, ret, arg1, arg2);
+        tcg_gen_op3_i64(INDEX_op_sub, ret, arg1, arg2);
     } else {
         tcg_gen_sub2_i32(TCGV_LOW(ret), TCGV_HIGH(ret), TCGV_LOW(arg1),
                          TCGV_HIGH(arg1), TCGV_LOW(arg2), TCGV_HIGH(arg2));
diff --git a/tcg/tcg.c b/tcg/tcg.c
index ca91a80efc..ee2af15cf8 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1020,8 +1020,7 @@ static const TCGOutOp * const all_outop[NB_OPS] = {
     OUTOP(INDEX_op_nor, TCGOutOpBinary, outop_nor),
     OUTOP(INDEX_op_or, TCGOutOpBinary, outop_or),
     OUTOP(INDEX_op_orc, TCGOutOpBinary, outop_orc),
-    OUTOP(INDEX_op_sub_i32, TCGOutOpSubtract, outop_sub),
-    OUTOP(INDEX_op_sub_i64, TCGOutOpSubtract, outop_sub),
+    OUTOP(INDEX_op_sub, TCGOutOpSubtract, outop_sub),
     OUTOP(INDEX_op_xor, TCGOutOpBinary, outop_xor),
 };
 
@@ -4010,10 +4009,8 @@ liveness_pass_1(TCGContext *s)
             opc_new = INDEX_op_add;
             goto do_addsub2;
         case INDEX_op_sub2_i32:
-            opc_new = INDEX_op_sub_i32;
-            goto do_addsub2;
         case INDEX_op_sub2_i64:
-            opc_new = INDEX_op_sub_i64;
+            opc_new = INDEX_op_sub;
         do_addsub2:
             nb_iargs = 4;
             nb_oargs = 2;
@@ -5450,8 +5447,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
         }
         break;
 
-    case INDEX_op_sub_i32:
-    case INDEX_op_sub_i64:
+    case INDEX_op_sub:
         {
             const TCGOutOpSubtract *out = &outop_sub;
 
diff --git a/tcg/tci.c b/tcg/tci.c
index ff129266c2..508d1405cd 100644
--- a/tcg/tci.c
+++ b/tcg/tci.c
@@ -527,7 +527,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
             tci_args_rrr(insn, &r0, &r1, &r2);
             regs[r0] = regs[r1] + regs[r2];
             break;
-        CASE_32_64(sub)
+        case INDEX_op_sub:
             tci_args_rrr(insn, &r0, &r1, &r2);
             regs[r0] = regs[r1] - regs[r2];
             break;
@@ -1080,9 +1080,8 @@ int print_insn_tci(bfd_vma addr, disassemble_info *info)
     case INDEX_op_nor:
     case INDEX_op_or:
     case INDEX_op_orc:
+    case INDEX_op_sub:
     case INDEX_op_xor:
-    case INDEX_op_sub_i32:
-    case INDEX_op_sub_i64:
     case INDEX_op_mul_i32:
     case INDEX_op_mul_i64:
     case INDEX_op_div_i32:
diff --git a/docs/devel/tcg-ops.rst b/docs/devel/tcg-ops.rst
index 26d464fa38..96b7f05919 100644
--- a/docs/devel/tcg-ops.rst
+++ b/docs/devel/tcg-ops.rst
@@ -265,7 +265,7 @@ Arithmetic
 
      - | *t0* = *t1* + *t2*
 
-   * - sub_i32/i64 *t0*, *t1*, *t2*
+   * - sub *t0*, *t1*, *t2*
 
      - | *t0* = *t1* - *t2*
 
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 353994e83f..67a46c6321 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -712,7 +712,7 @@ static const TCGOutOpBinary outop_orc = {
 static void tgen_sub(TCGContext *s, TCGType type,
                      TCGReg a0, TCGReg a1, TCGReg a2)
 {
-    tcg_out_op_rrr(s, glue(INDEX_op_sub_i,TCG_TARGET_REG_BITS), a0, a1, a2);
+    tcg_out_op_rrr(s, INDEX_op_sub, a0, a1, a2);
 }
 
 static const TCGOutOpSubtract outop_sub = {
