Index: include/llvm/Support/AArch64TargetParser.def
===================================================================
--- include/llvm/Support/AArch64TargetParser.def
+++ include/llvm/Support/AArch64TargetParser.def
@@ -24,16 +24,17 @@
 AARCH64_ARCH("armv8.1-a", ARMV8_1A, "8.1-A", "v8.1a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-              AArch64::AEK_SIMD | AArch64::AEK_LSE))
+              AArch64::AEK_SIMD | AArch64::AEK_LSE | AArch64::AEK_RDM))
 AARCH64_ARCH("armv8.2-a", ARMV8_2A, "8.2-A", "v8.2a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-              AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE))
+              AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
+              AArch64::AEK_RDM))
 AARCH64_ARCH("armv8.3-a", ARMV8_3A, "8.3-A", "v8.3a",
              ARMBuildAttrs::CPUArch::v8_A, FK_CRYPTO_NEON_FP_ARMV8,
              (AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
               AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
-              AArch64::AEK_RCPC))
+              AArch64::AEK_RDM | AArch64::AEK_RCPC))
 #undef AARCH64_ARCH
 
 #ifndef AARCH64_ARCH_EXT_NAME
@@ -44,6 +45,7 @@
 AARCH64_ARCH_EXT_NAME("none",     AArch64::AEK_NONE,     nullptr,  nullptr)
 AARCH64_ARCH_EXT_NAME("crc",      AArch64::AEK_CRC,      "+crc",   "-crc")
 AARCH64_ARCH_EXT_NAME("lse",      AArch64::AEK_LSE,      "+lse",   "-lse")
+AARCH64_ARCH_EXT_NAME("rdm",      AArch64::AEK_RDM,      "+rdm",   "-rdm")
 AARCH64_ARCH_EXT_NAME("crypto",   AArch64::AEK_CRYPTO,   "+crypto","-crypto")
 AARCH64_ARCH_EXT_NAME("dotprod",  AArch64::AEK_DOTPROD,  "+dotprod","-dotprod")
 AARCH64_ARCH_EXT_NAME("fp",       AArch64::AEK_FP,       "+fp-armv8",  "-fp-armv8")
@@ -81,7 +83,7 @@
 AARCH64_CPU_NAME("exynos-m3", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false,
                 (AArch64::AEK_CRC))
 AARCH64_CPU_NAME("falkor", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false,
-                (AArch64::AEK_CRC))
+                (AArch64::AEK_CRC | AArch64::AEK_RDM))
 AARCH64_CPU_NAME("kryo", ARMV8A, FK_CRYPTO_NEON_FP_ARMV8, false,
                 (AArch64::AEK_CRC))
 AARCH64_CPU_NAME("thunderx2t99", ARMV8_1A, FK_CRYPTO_NEON_FP_ARMV8, false,
Index: include/llvm/Support/TargetParser.h
===================================================================
--- include/llvm/Support/TargetParser.h
+++ include/llvm/Support/TargetParser.h
@@ -167,9 +167,10 @@
   AEK_PROFILE =     1 << 6,
   AEK_RAS =         1 << 7,
   AEK_LSE =         1 << 8,
-  AEK_SVE =         1 << 9,
-  AEK_DOTPROD =     1 << 10,
-  AEK_RCPC =        1 << 11
+  AEK_RDM =         1 << 9,
+  AEK_SVE =         1 << 10,
+  AEK_DOTPROD =     1 << 11,
+  AEK_RCPC =        1 << 12
 };
 
 StringRef getCanonicalArchName(StringRef Arch);
Index: test/CodeGen/AArch64/arm64-neon-v8.1a.ll
===================================================================
--- test/CodeGen/AArch64/arm64-neon-v8.1a.ll
+++ test/CodeGen/AArch64/arm64-neon-v8.1a.ll
@@ -1,5 +1,6 @@
 ; RUN: llc < %s -verify-machineinstrs -mtriple=arm64-eabi -aarch64-neon-syntax=generic | FileCheck %s --check-prefix=CHECK-V8a
 ; RUN: llc < %s -verify-machineinstrs -mtriple=arm64-eabi -mattr=+rdm -aarch64-neon-syntax=generic | FileCheck %s --check-prefix=CHECK-V81a
+; RUN: llc < %s -verify-machineinstrs -mtriple=arm64-eabi -mcpu=falkor -aarch64-neon-syntax=generic | FileCheck %s --check-prefix=CHECK-V81a
 ; RUN: llc < %s -verify-machineinstrs -mtriple=arm64-eabi -mattr=+v8.1a -aarch64-neon-syntax=generic | FileCheck %s --check-prefix=CHECK-V81a
 ; RUN: llc < %s -verify-machineinstrs -mtriple=arm64-eabi -mattr=+v8.1a -aarch64-neon-syntax=apple | FileCheck %s --check-prefix=CHECK-V81a-apple
 
Index: unittests/Support/TargetParserTest.cpp
===================================================================
--- unittests/Support/TargetParserTest.cpp
+++ unittests/Support/TargetParserTest.cpp
@@ -671,8 +671,8 @@
       "cortex-a55", "armv8.2-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
       AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
-      AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC,
-      "8.2-A"));
+      AArch64::AEK_RDM | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC, "8.2-A"));
   EXPECT_TRUE(testAArch64CPU(
       "cortex-a57", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
@@ -689,8 +689,8 @@
       "cortex-a75", "armv8.2-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
       AArch64::AEK_SIMD | AArch64::AEK_RAS | AArch64::AEK_LSE |
-      AArch64::AEK_FP16 | AArch64::AEK_DOTPROD | AArch64::AEK_RCPC,
-      "8.2-A"));
+      AArch64::AEK_RDM | AArch64::AEK_FP16 | AArch64::AEK_DOTPROD |
+      AArch64::AEK_RCPC, "8.2-A"));
   EXPECT_TRUE(testAArch64CPU(
       "cyclone", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRYPTO | AArch64::AEK_FP | AArch64::AEK_SIMD, "8-A"));
@@ -709,7 +709,7 @@
   EXPECT_TRUE(testAArch64CPU(
       "falkor", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
-      AArch64::AEK_SIMD, "8-A"));
+      AArch64::AEK_SIMD | AArch64::AEK_RDM, "8-A"));
   EXPECT_TRUE(testAArch64CPU(
       "kryo", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_FP |
@@ -717,7 +717,7 @@
   EXPECT_TRUE(testAArch64CPU(
       "thunderx2t99", "armv8.1-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_LSE |
-      AArch64::AEK_FP | AArch64::AEK_SIMD, "8.1-A"));
+      AArch64::AEK_RDM | AArch64::AEK_FP | AArch64::AEK_SIMD, "8.1-A"));
   EXPECT_TRUE(testAArch64CPU(
       "thunderx", "armv8-a", "crypto-neon-fp-armv8",
       AArch64::AEK_CRC | AArch64::AEK_CRYPTO | AArch64::AEK_SIMD |
@@ -785,6 +785,8 @@
                                     AArch64::ArchKind::INVALID, "ras"));
   EXPECT_FALSE(testAArch64Extension("exynos-m1",
                                     AArch64::ArchKind::INVALID, "ras"));
+  EXPECT_TRUE(testAArch64Extension("falkor",
+                                   AArch64::ArchKind::INVALID, "rdm"));
   EXPECT_FALSE(testAArch64Extension("kryo",
                                     AArch64::ArchKind::INVALID, "ras"));
   EXPECT_FALSE(testAArch64Extension("thunderx2t99",
@@ -811,7 +813,8 @@
   unsigned Extensions = AArch64::AEK_CRC | AArch64::AEK_CRYPTO |
                         AArch64::AEK_FP | AArch64::AEK_SIMD |
                         AArch64::AEK_FP16 | AArch64::AEK_PROFILE |
-                        AArch64::AEK_RAS | AArch64::AEK_SVE |
+                        AArch64::AEK_RAS | AArch64::AEK_LSE |
+                        AArch64::AEK_RDM | AArch64::AEK_SVE |
                         AArch64::AEK_DOTPROD | AArch64::AEK_RCPC;
 
   for (unsigned i = 0; i <= Extensions; i++)
@@ -841,6 +844,8 @@
                               {"fp16", "nofp16", "+fullfp16", "-fullfp16"},
                               {"profile", "noprofile", "+spe", "-spe"},
                               {"ras", "noras", "+ras", "-ras"},
+                              {"lse", "nolse", "+lse", "-lse"},
+                              {"rdm", "nordm", "+rdm", "-rdm"},
                               {"sve", "nosve", "+sve", "-sve"},
                               {"dotprod", "nodotprod", "+dotprod", "-dotprod"},
                               {"rcpc", "norcpc", "+rcpc", "-rcpc" }};