2 files changed, 12 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp b/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
index 1feb3380eef..f657eaab815 100644
--- a/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
+++ b/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
@@ -146,6 +146,9 @@ const AArch64NamedImmMapper::Mapping AArch64PState::PStateMapper::PStateMappings
 
   // v8.1a "Privileged Access Never" extension-specific PStates
   {"pan", PAN, {AArch64::HasV8_1aOps}},
+
+  // v8.2a
+  {"uao", UAO, {AArch64::HasV8_2aOps}},
 };
 
 AArch64PState::PStateMapper::PStateMapper()
@@ -802,6 +805,9 @@ const AArch64NamedImmMapper::Mapping AArch64SysReg::SysRegMapper::SysRegMappings
   {"cntv_cval_el02", CNTV_CVAL_EL02, {AArch64::HasV8_1aOps}},
   {"spsr_el12", SPSR_EL12, {AArch64::HasV8_1aOps}},
   {"elr_el12", ELR_EL12, {AArch64::HasV8_1aOps}},
+
+  // v8.2a registers
+  {"uao",           UAO,           {AArch64::HasV8_2aOps}},
 };
 
 uint32_t
diff --git a/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h b/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
index 729bcd44c31..79fb61502d8 100644
--- a/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
+++ b/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
@@ -463,6 +463,9 @@ namespace AArch64PState {
 
     // v8.1a "Privileged Access Never" extension-specific PStates
     PAN = 0x04,
+
+    // v8.2a "User Access Override" extension-specific PStates
+    UAO = 0x03
   };
 
   struct PStateMapper : AArch64NamedImmMapper {
@@ -1191,6 +1194,9 @@ namespace AArch64SysReg {
     SPSR_EL12         = 0xea00, // 11  101  0100  0000  000
     ELR_EL12          = 0xea01, // 11  101  0100  0000  001
 
+    // v8.2a registers
+    UAO               = 0xc214, // 11  000  0100  0010  100
+
     // Cyclone specific system registers
     CPM_IOACC_CTL_EL3 = 0xff90,
   };