diff --git a/tcg/sparc/tcg-target-con-set.h b/tcg/sparc/tcg-target-con-set.h
new file mode 100644
index 0000000000..3b751dc3fb
--- /dev/null
+++ b/tcg/sparc/tcg-target-con-set.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define Sparc target-specific constraint sets.
+ * Copyright (c) 2021 Linaro
+ */
+
+/*
+ * C_On_Im(...) defines a constraint set with <n> outputs and <m> inputs.
+ * Each operand should be a sequence of constraint letters as defined by
+ * tcg-target-con-str.h; the constraint combination is inclusive or.
+ */
+C_O0_I1(r)
+C_O0_I2(rZ, r)
+C_O0_I2(RZ, r)
+C_O0_I2(rZ, rJ)
+C_O0_I2(RZ, RJ)
+C_O0_I2(sZ, A)
+C_O0_I2(SZ, A)
+C_O1_I1(r, A)
+C_O1_I1(R, A)
+C_O1_I1(r, r)
+C_O1_I1(r, R)
+C_O1_I1(R, r)
+C_O1_I1(R, R)
+C_O1_I2(R, R, R)
+C_O1_I2(r, rZ, rJ)
+C_O1_I2(R, RZ, RJ)
+C_O1_I4(r, rZ, rJ, rI, 0)
+C_O1_I4(R, RZ, RJ, RI, 0)
+C_O2_I2(r, r, rZ, rJ)
+C_O2_I4(R, R, RZ, RZ, RJ, RI)
+C_O2_I4(r, r, rZ, rZ, rJ, rJ)
diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h
index f66f5d07dc..f50e8d50ee 100644
--- a/tcg/sparc/tcg-target.h
+++ b/tcg/sparc/tcg-target.h
@@ -168,5 +168,6 @@ extern bool use_vis3_instructions;
 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
 
 #define TCG_TARGET_NEED_POOL_LABELS
+#define TCG_TARGET_CON_SET_H
 
 #endif
diff --git a/tcg/sparc/tcg-target.c.inc b/tcg/sparc/tcg-target.c.inc
index ea2b3274d4..03f3aa6a23 100644
--- a/tcg/sparc/tcg-target.c.inc
+++ b/tcg/sparc/tcg-target.c.inc
@@ -1559,40 +1559,11 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     }
 }
 
-static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
+static TCGConstraintSetIndex 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 R_r = { .args_ct_str = { "R", "r" } };
-    static const TCGTargetOpDef r_R = { .args_ct_str = { "r", "R" } };
-    static const TCGTargetOpDef R_R = { .args_ct_str = { "R", "R" } };
-    static const TCGTargetOpDef r_A = { .args_ct_str = { "r", "A" } };
-    static const TCGTargetOpDef R_A = { .args_ct_str = { "R", "A" } };
-    static const TCGTargetOpDef rZ_r = { .args_ct_str = { "rZ", "r" } };
-    static const TCGTargetOpDef RZ_r = { .args_ct_str = { "RZ", "r" } };
-    static const TCGTargetOpDef sZ_A = { .args_ct_str = { "sZ", "A" } };
-    static const TCGTargetOpDef SZ_A = { .args_ct_str = { "SZ", "A" } };
-    static const TCGTargetOpDef rZ_rJ = { .args_ct_str = { "rZ", "rJ" } };
-    static const TCGTargetOpDef RZ_RJ = { .args_ct_str = { "RZ", "RJ" } };
-    static const TCGTargetOpDef R_R_R = { .args_ct_str = { "R", "R", "R" } };
-    static const TCGTargetOpDef r_rZ_rJ
-        = { .args_ct_str = { "r", "rZ", "rJ" } };
-    static const TCGTargetOpDef R_RZ_RJ
-        = { .args_ct_str = { "R", "RZ", "RJ" } };
-    static const TCGTargetOpDef r_r_rZ_rJ
-        = { .args_ct_str = { "r", "r", "rZ", "rJ" } };
-    static const TCGTargetOpDef movc_32
-        = { .args_ct_str = { "r", "rZ", "rJ", "rI", "0" } };
-    static const TCGTargetOpDef movc_64
-        = { .args_ct_str = { "R", "RZ", "RJ", "RI", "0" } };
-    static const TCGTargetOpDef add2_32
-        = { .args_ct_str = { "r", "r", "rZ", "rZ", "rJ", "rJ" } };
-    static const TCGTargetOpDef add2_64
-        = { .args_ct_str = { "R", "R", "RZ", "RZ", "RJ", "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:
@@ -1601,12 +1572,12 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
     case INDEX_op_ld_i32:
     case INDEX_op_neg_i32:
     case INDEX_op_not_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 &rZ_r;
+        return C_O0_I2(rZ, r);
 
     case INDEX_op_add_i32:
     case INDEX_op_mul_i32:
@@ -1622,18 +1593,18 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
     case INDEX_op_shr_i32:
     case INDEX_op_sar_i32:
     case INDEX_op_setcond_i32:
-        return &r_rZ_rJ;
+        return C_O1_I2(r, rZ, rJ);
 
     case INDEX_op_brcond_i32:
-        return &rZ_rJ;
+        return C_O0_I2(rZ, rJ);
     case INDEX_op_movcond_i32:
-        return &movc_32;
+        return C_O1_I4(r, rZ, rJ, rI, 0);
     case INDEX_op_add2_i32:
     case INDEX_op_sub2_i32:
-        return &add2_32;
+        return C_O2_I4(r, r, rZ, rZ, rJ, rJ);
     case INDEX_op_mulu2_i32:
     case INDEX_op_muls2_i32:
-        return &r_r_rZ_rJ;
+        return C_O2_I2(r, r, rZ, rJ);
 
     case INDEX_op_ld8u_i64:
     case INDEX_op_ld8s_i64:
@@ -1644,13 +1615,13 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
     case INDEX_op_ld_i64:
     case INDEX_op_ext_i32_i64:
     case INDEX_op_extu_i32_i64:
-        return &R_r;
+        return C_O1_I1(R, r);
 
     case INDEX_op_st8_i64:
     case INDEX_op_st16_i64:
     case INDEX_op_st32_i64:
     case INDEX_op_st_i64:
-        return &RZ_r;
+        return C_O0_I2(RZ, r);
 
     case INDEX_op_add_i64:
     case INDEX_op_mul_i64:
@@ -1666,39 +1637,39 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
     case INDEX_op_shr_i64:
     case INDEX_op_sar_i64:
     case INDEX_op_setcond_i64:
-        return &R_RZ_RJ;
+        return C_O1_I2(R, RZ, RJ);
 
     case INDEX_op_neg_i64:
     case INDEX_op_not_i64:
     case INDEX_op_ext32s_i64:
     case INDEX_op_ext32u_i64:
-        return &R_R;
+        return C_O1_I1(R, R);
 
     case INDEX_op_extrl_i64_i32:
     case INDEX_op_extrh_i64_i32:
-        return &r_R;
+        return C_O1_I1(r, R);
 
     case INDEX_op_brcond_i64:
-        return &RZ_RJ;
+        return C_O0_I2(RZ, RJ);
     case INDEX_op_movcond_i64:
-        return &movc_64;
+        return C_O1_I4(R, RZ, RJ, RI, 0);
     case INDEX_op_add2_i64:
     case INDEX_op_sub2_i64:
-        return &add2_64;
+        return C_O2_I4(R, R, RZ, RZ, RJ, RI);
     case INDEX_op_muluh_i64:
-        return &R_R_R;
+        return C_O1_I2(R, R, R);
 
     case INDEX_op_qemu_ld_i32:
-        return &r_A;
+        return C_O1_I1(r, A);
     case INDEX_op_qemu_ld_i64:
-        return &R_A;
+        return C_O1_I1(R, A);
     case INDEX_op_qemu_st_i32:
-        return &sZ_A;
+        return C_O0_I2(sZ, A);
     case INDEX_op_qemu_st_i64:
-        return &SZ_A;
+        return C_O0_I2(SZ, A);
 
     default:
-        return NULL;
+        g_assert_not_reached();
     }
 }
 
