1 files changed, 52 insertions, 0 deletions
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 653ef0a4bb..1c1b798c06 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -116,3 +116,55 @@ static const int tcg_target_call_oarg_regs[] = {
     TCG_REG_A0,
     TCG_REG_A1,
 };
+
+#define TCG_CT_CONST_ZERO  0x100
+#define TCG_CT_CONST_S12   0x200
+#define TCG_CT_CONST_N12   0x400
+#define TCG_CT_CONST_U12   0x800
+#define TCG_CT_CONST_C12   0x1000
+#define TCG_CT_CONST_WSZ   0x2000
+
+#define ALL_GENERAL_REGS      MAKE_64BIT_MASK(0, 32)
+/*
+ * For softmmu, we need to avoid conflicts with the first 5
+ * argument registers to call the helper.  Some of these are
+ * also used for the tlb lookup.
+ */
+#ifdef CONFIG_SOFTMMU
+#define SOFTMMU_RESERVE_REGS  MAKE_64BIT_MASK(TCG_REG_A0, 5)
+#else
+#define SOFTMMU_RESERVE_REGS  0
+#endif
+
+
+static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len)
+{
+    return sextract64(val, pos, len);
+}
+
+/* test if a constant matches the constraint */
+static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
+{
+    if (ct & TCG_CT_CONST) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_ZERO) && val == 0) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_S12) && val == sextreg(val, 0, 12)) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_N12) && -val == sextreg(-val, 0, 12)) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_U12) && val >= 0 && val <= 0xfff) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_C12) && ~val >= 0 && ~val <= 0xfff) {
+        return true;
+    }
+    if ((ct & TCG_CT_CONST_WSZ) && val == (type == TCG_TYPE_I32 ? 32 : 64)) {
+        return true;
+    }
+    return false;
+}