diff --git a/lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h b/lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h
--- a/lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterInfos_loongarch64.h
@@ -100,7 +100,6 @@
     DEFINE_GPR64_ALT(r20, t8, LLDB_INVALID_REGNUM),
     DEFINE_GPR64(r21, LLDB_INVALID_REGNUM),
     DEFINE_GPR64_ALT(r22, fp, LLDB_REGNUM_GENERIC_FP),
-    DEFINE_GPR64_ALT(r22, s9, LLDB_REGNUM_GENERIC_FP),
     DEFINE_GPR64_ALT(r23, s0, LLDB_INVALID_REGNUM),
     DEFINE_GPR64_ALT(r24, s1, LLDB_INVALID_REGNUM),
     DEFINE_GPR64_ALT(r25, s2, LLDB_INVALID_REGNUM),
diff --git a/lldb/source/Plugins/Process/Utility/lldb-loongarch-register-enums.h b/lldb/source/Plugins/Process/Utility/lldb-loongarch-register-enums.h
--- a/lldb/source/Plugins/Process/Utility/lldb-loongarch-register-enums.h
+++ b/lldb/source/Plugins/Process/Utility/lldb-loongarch-register-enums.h
@@ -85,7 +85,6 @@
   gpr_t7_loongarch = gpr_r19_loongarch,
   gpr_t8_loongarch = gpr_r20_loongarch,
   gpr_fp_loongarch = gpr_r22_loongarch,
-  gpr_s9_loongarch = gpr_r22_loongarch,
   gpr_s0_loongarch = gpr_r23_loongarch,
   gpr_s1_loongarch = gpr_r24_loongarch,
   gpr_s2_loongarch = gpr_r25_loongarch,
diff --git a/lldb/source/Utility/LoongArch_DWARF_Registers.h b/lldb/source/Utility/LoongArch_DWARF_Registers.h
--- a/lldb/source/Utility/LoongArch_DWARF_Registers.h
+++ b/lldb/source/Utility/LoongArch_DWARF_Registers.h
@@ -128,7 +128,6 @@
   dwarf_gpr_t7 = dwarf_gpr_r19,
   dwarf_gpr_t8 = dwarf_gpr_r20,
   dwarf_gpr_fp = dwarf_gpr_r22,
-  dwarf_gpr_s9 = dwarf_gpr_r22,
   dwarf_gpr_s0 = dwarf_gpr_r23,
   dwarf_gpr_s1 = dwarf_gpr_r24,
   dwarf_gpr_s2 = dwarf_gpr_r25,