diff --git a/tcg/ppc/tcg-target-con-str.h b/tcg/ppc/tcg-target-con-str.h
new file mode 100644
index 0000000000..298ca20d5b
--- /dev/null
+++ b/tcg/ppc/tcg-target-con-str.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define PowerPC target-specific operand constraints.
+ * Copyright (c) 2021 Linaro
+ */
+
+/*
+ * Define constraint letters for register sets:
+ * REGS(letter, register_mask)
+ */
+REGS('r', ALL_GENERAL_REGS)
+REGS('v', ALL_VECTOR_REGS)
+REGS('A', 1u << TCG_REG_R3)
+REGS('B', 1u << TCG_REG_R4)
+REGS('C', 1u << TCG_REG_R5)
+REGS('D', 1u << TCG_REG_R6)
+REGS('L', ALL_QLOAD_REGS)
+REGS('S', ALL_QSTORE_REGS)
+
+/*
+ * Define constraint letters for constants:
+ * CONST(letter, TCG_CT_CONST_* bit set)
+ */
+CONST('I', TCG_CT_CONST_S16)
+CONST('J', TCG_CT_CONST_U16)
+CONST('M', TCG_CT_CONST_MONE)
+CONST('T', TCG_CT_CONST_S32)
+CONST('U', TCG_CT_CONST_U32)
+CONST('W', TCG_CT_CONST_WSZ)
+CONST('Z', TCG_CT_CONST_ZERO)
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h
index d1339afc66..40ed4b82dd 100644
--- a/tcg/ppc/tcg-target.h
+++ b/tcg/ppc/tcg-target.h
@@ -185,5 +185,6 @@ void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
 #define TCG_TARGET_NEED_LDST_LABELS
 #endif
 #define TCG_TARGET_NEED_POOL_LABELS
+#define TCG_TARGET_CON_STR_H
 
 #endif
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index cf64892295..e5aa8d2d10 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -62,6 +62,21 @@
 #define TCG_CT_CONST_MONE 0x2000
 #define TCG_CT_CONST_WSZ  0x4000
 
+#define ALL_GENERAL_REGS  0xffffffffu
+#define ALL_VECTOR_REGS   0xffffffff00000000ull
+
+#ifdef CONFIG_SOFTMMU
+#define ALL_QLOAD_REGS \
+    (ALL_GENERAL_REGS & \
+     ~((1 << TCG_REG_R3) | (1 << TCG_REG_R4) | (1 << TCG_REG_R5)))
+#define ALL_QSTORE_REGS \
+    (ALL_GENERAL_REGS & ~((1 << TCG_REG_R3) | (1 << TCG_REG_R4) | \
+                          (1 << TCG_REG_R5) | (1 << TCG_REG_R6)))
+#else
+#define ALL_QLOAD_REGS  (ALL_GENERAL_REGS & ~(1 << TCG_REG_R3))
+#define ALL_QSTORE_REGS ALL_QLOAD_REGS
+#endif
+
 TCGPowerISA have_isa;
 static bool have_isel;
 bool have_altivec;
@@ -222,64 +237,6 @@ static bool reloc_pc14(tcg_insn_unit *src_rw, const tcg_insn_unit *target)
     return false;
 }
 
-/* parse target specific constraints */
-static const char *target_parse_constraint(TCGArgConstraint *ct,
-                                           const char *ct_str, TCGType type)
-{
-    switch (*ct_str++) {
-    case 'A': case 'B': case 'C': case 'D':
-        tcg_regset_set_reg(ct->regs, 3 + ct_str[0] - 'A');
-        break;
-    case 'r':
-        ct->regs = 0xffffffff;
-        break;
-    case 'v':
-        ct->regs = 0xffffffff00000000ull;
-        break;
-    case 'L':                   /* qemu_ld constraint */
-        ct->regs = 0xffffffff;
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R3);
-#ifdef CONFIG_SOFTMMU
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R4);
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R5);
-#endif
-        break;
-    case 'S':                   /* qemu_st constraint */
-        ct->regs = 0xffffffff;
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R3);
-#ifdef CONFIG_SOFTMMU
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R4);
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R5);
-        tcg_regset_reset_reg(ct->regs, TCG_REG_R6);
-#endif
-        break;
-    case 'I':
-        ct->ct |= TCG_CT_CONST_S16;
-        break;
-    case 'J':
-        ct->ct |= TCG_CT_CONST_U16;
-        break;
-    case 'M':
-        ct->ct |= TCG_CT_CONST_MONE;
-        break;
-    case 'T':
-        ct->ct |= TCG_CT_CONST_S32;
-        break;
-    case 'U':
-        ct->ct |= TCG_CT_CONST_U32;
-        break;
-    case 'W':
-        ct->ct |= TCG_CT_CONST_WSZ;
-        break;
-    case 'Z':
-        ct->ct |= TCG_CT_CONST_ZERO;
-        break;
-    default:
-        return NULL;
-    }
-    return ct_str;
-}
-
 /* test if a constant matches the constraint */
 static int tcg_target_const_match(tcg_target_long val, TCGType type,
                                   const TCGArgConstraint *arg_ct)
