diff --git a/tcg/arm/tcg-target-conset.h b/tcg/arm/tcg-target-conset.h
new file mode 100644
index 0000000000..7e972e70e0
--- /dev/null
+++ b/tcg/arm/tcg-target-conset.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Arm target-specific constaint sets.
+ * Copyright (c) 2020 Linaro
+ */
+
+C_O0_I1(r)
+C_O0_I2(r, r)
+C_O0_I2(r, rIN)
+C_O0_I2(s, s)
+C_O0_I3(s, s, s)
+C_O0_I4(r, r, rI, rI)
+C_O0_I4(s, s, s, s)
+C_O1_I1(r, l)
+C_O1_I1(r, r)
+C_O1_I2(r, 0, rZ)
+C_O1_I2(r, l, l)
+C_O1_I2(r, r, r)
+C_O1_I2(r, r, rI)
+C_O1_I2(r, r, rIK)
+C_O1_I2(r, r, rIN)
+C_O1_I2(r, r, ri)
+C_O1_I2(r, rZ, rZ)
+C_O1_I4(r, r, r, rI, rI)
+C_O1_I4(r, r, rIN, rIK, 0)
+C_O2_I1(r, r, l)
+C_O2_I2(r, r, l, l)
+C_O2_I2(r, r, r, r)
+C_O2_I4(r, r, r, r, rIN, rIK)
+C_O2_I4(r, r, rI, rI, rIN, rIK)
diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index 17e771374d..918f09239a 100644
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -146,5 +146,6 @@ void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t);
 #define TCG_TARGET_NEED_LDST_LABELS
 #endif
 #define TCG_TARGET_NEED_POOL_LABELS
+#define TCG_TARGET_CONSET_H
 
 #endif
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index ab1b295293..029d58e4b7 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -2012,57 +2012,17 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
     }
 }
 
-static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
+static int tcg_target_op_def(TCGOpcode op)
 {
-    static const TCGTargetOpDef r = { .args_ct_str = { "r" } };
-    static const TCGTargetOpDef r_r = { .args_ct_str = { "r", "r" } };
-    static const TCGTargetOpDef s_s = { .args_ct_str = { "s", "s" } };
-    static const TCGTargetOpDef r_l = { .args_ct_str = { "r", "l" } };
-    static const TCGTargetOpDef r_r_r = { .args_ct_str = { "r", "r", "r" } };
-    static const TCGTargetOpDef r_r_l = { .args_ct_str = { "r", "r", "l" } };
-    static const TCGTargetOpDef r_l_l = { .args_ct_str = { "r", "l", "l" } };
-    static const TCGTargetOpDef s_s_s = { .args_ct_str = { "s", "s", "s" } };
-    static const TCGTargetOpDef r_r_ri = { .args_ct_str = { "r", "r", "ri" } };
-    static const TCGTargetOpDef r_r_rI = { .args_ct_str = { "r", "r", "rI" } };
-    static const TCGTargetOpDef r_r_rIN
-        = { .args_ct_str = { "r", "r", "rIN" } };
-    static const TCGTargetOpDef r_r_rIK
-        = { .args_ct_str = { "r", "r", "rIK" } };
-    static const TCGTargetOpDef r_r_r_r
-        = { .args_ct_str = { "r", "r", "r", "r" } };
-    static const TCGTargetOpDef r_r_l_l
-        = { .args_ct_str = { "r", "r", "l", "l" } };
-    static const TCGTargetOpDef s_s_s_s
-        = { .args_ct_str = { "s", "s", "s", "s" } };
-    static const TCGTargetOpDef br
-        = { .args_ct_str = { "r", "rIN" } };
-    static const TCGTargetOpDef ext2
-        = { .args_ct_str = { "r", "rZ", "rZ" } };
-    static const TCGTargetOpDef dep
-        = { .args_ct_str = { "r", "0", "rZ" } };
-    static const TCGTargetOpDef movc
-        = { .args_ct_str = { "r", "r", "rIN", "rIK", "0" } };
-    static const TCGTargetOpDef add2
-        = { .args_ct_str = { "r", "r", "r", "r", "rIN", "rIK" } };
-    static const TCGTargetOpDef sub2
-        = { .args_ct_str = { "r", "r", "rI", "rI", "rIN", "rIK" } };
-    static const TCGTargetOpDef br2
-        = { .args_ct_str = { "r", "r", "rI", "rI" } };
-    static const TCGTargetOpDef setc2
-        = { .args_ct_str = { "r", "r", "r", "rI", "rI" } };
-
     switch (op) {
     case INDEX_op_goto_ptr:
-        return &r;
+        return C_O0_I1(r);
 
     case INDEX_op_ld8u_i32:
     case INDEX_op_ld8s_i32:
     case INDEX_op_ld16u_i32:
     case INDEX_op_ld16s_i32:
     case INDEX_op_ld_i32:
-    case INDEX_op_st8_i32:
-    case INDEX_op_st16_i32:
-    case INDEX_op_st_i32:
     case INDEX_op_neg_i32:
     case INDEX_op_not_i32:
     case INDEX_op_bswap16_i32:
@@ -2072,62 +2032,72 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
     case INDEX_op_ext16u_i32:
     case INDEX_op_extract_i32:
     case INDEX_op_sextract_i32:
-        return &r_r;
+        return C_O1_I1(r, r);
+
+    case INDEX_op_st8_i32:
+    case INDEX_op_st16_i32:
+    case INDEX_op_st_i32:
+        return C_O0_I2(r, r);
 
     case INDEX_op_add_i32:
     case INDEX_op_sub_i32:
     case INDEX_op_setcond_i32:
-        return &r_r_rIN;
+        return C_O1_I2(r, r, rIN);
+
     case INDEX_op_and_i32:
     case INDEX_op_andc_i32:
     case INDEX_op_clz_i32:
     case INDEX_op_ctz_i32:
-        return &r_r_rIK;
+        return C_O1_I2(r, r, rIK);
+
     case INDEX_op_mul_i32:
     case INDEX_op_div_i32:
     case INDEX_op_divu_i32:
-        return &r_r_r;
+        return C_O1_I2(r, r, r);
+
     case INDEX_op_mulu2_i32:
     case INDEX_op_muls2_i32:
-        return &r_r_r_r;
+        return C_O2_I2(r, r, r, r);
+
     case INDEX_op_or_i32:
     case INDEX_op_xor_i32:
-        return &r_r_rI;
+        return C_O1_I2(r, r, rI);
+
     case INDEX_op_shl_i32:
     case INDEX_op_shr_i32:
     case INDEX_op_sar_i32:
     case INDEX_op_rotl_i32:
     case INDEX_op_rotr_i32:
-        return &r_r_ri;
+        return C_O1_I2(r, r, ri);
 
     case INDEX_op_brcond_i32:
-        return &br;
+        return C_O0_I2(r, rIN);
     case INDEX_op_deposit_i32:
-        return &dep;
+        return C_O1_I2(r, 0, rZ);
     case INDEX_op_extract2_i32:
-        return &ext2;
+        return C_O1_I2(r, rZ, rZ);
     case INDEX_op_movcond_i32:
-        return &movc;
+        return C_O1_I4(r, r, rIN, rIK, 0);
     case INDEX_op_add2_i32:
-        return &add2;
+        return C_O2_I4(r, r, r, r, rIN, rIK);
     case INDEX_op_sub2_i32:
-        return &sub2;
+        return C_O2_I4(r, r, rI, rI, rIN, rIK);
     case INDEX_op_brcond2_i32:
-        return &br2;
+        return C_O0_I4(r, r, rI, rI);
     case INDEX_op_setcond2_i32:
-        return &setc2;
+        return C_O1_I4(r, r, r, rI, rI);
 
     case INDEX_op_qemu_ld_i32:
-        return TARGET_LONG_BITS == 32 ? &r_l : &r_l_l;
+        return TARGET_LONG_BITS == 32 ? C_O1_I1(r, l) : C_O1_I2(r, l, l);
     case INDEX_op_qemu_ld_i64:
-        return TARGET_LONG_BITS == 32 ? &r_r_l : &r_r_l_l;
+        return TARGET_LONG_BITS == 32 ? C_O2_I1(r, r, l) : C_O2_I2(r, r, l, l);
     case INDEX_op_qemu_st_i32:
-        return TARGET_LONG_BITS == 32 ? &s_s : &s_s_s;
+        return TARGET_LONG_BITS == 32 ? C_O0_I2(s, s) : C_O0_I3(s, s, s);
     case INDEX_op_qemu_st_i64:
-        return TARGET_LONG_BITS == 32 ? &s_s_s : &s_s_s_s;
+        return TARGET_LONG_BITS == 32 ? C_O0_I3(s, s, s) : C_O0_I4(s, s, s, s);
 
     default:
-        return NULL;
+        g_assert_not_reached();
     }
 }
 
