diff --git a/llvm/include/llvm/TargetParser/AArch64TargetParser.h b/llvm/include/llvm/TargetParser/AArch64TargetParser.h
--- a/llvm/include/llvm/TargetParser/AArch64TargetParser.h
+++ b/llvm/include/llvm/TargetParser/AArch64TargetParser.h
@@ -486,7 +486,8 @@
     {"carmel", ARMV8_2A, (AArch64::AEK_CRYPTO | AArch64::AEK_FP16)},
     {"ampere1", ARMV8_6A,
      (AArch64::AEK_AES | AArch64::AEK_SHA2 | AArch64::AEK_SHA3 |
-      AArch64::AEK_FP16 | AArch64::AEK_SB | AArch64::AEK_SSBS)},
+      AArch64::AEK_FP16 | AArch64::AEK_SB | AArch64::AEK_SSBS |
+      AArch64::AEK_RAND)},
     // Invalid CPU
     {"invalid", INVALID, (AArch64::AEK_INVALID)},
 };
diff --git a/llvm/lib/Target/AArch64/AArch64.td b/llvm/lib/Target/AArch64/AArch64.td
--- a/llvm/lib/Target/AArch64/AArch64.td
+++ b/llvm/lib/Target/AArch64/AArch64.td
@@ -1294,7 +1294,8 @@
                                    FeatureNEON, FeaturePerfMon, FeatureSPE,
                                    FeatureFullFP16, FeatureFP16FML, FeatureDotProd];
   list<SubtargetFeature> Ampere1 = [HasV8_6aOps, FeatureNEON, FeaturePerfMon,
-                                    FeatureMTE, FeatureSSBS];
+                                    FeatureSSBS, FeatureRandGen, FeatureSB,
+                                    FeatureSHA2, FeatureSHA3, FeatureAES4];
 
   // ETE and TRBE are future architecture extensions. We temporarily enable them
   // by default for users targeting generic AArch64. The extensions do not
diff --git a/llvm/unittests/TargetParser/TargetParserTest.cpp b/llvm/unittests/TargetParser/TargetParserTest.cpp
--- a/llvm/unittests/TargetParser/TargetParserTest.cpp
+++ b/llvm/unittests/TargetParser/TargetParserTest.cpp
@@ -1339,7 +1339,7 @@
                              AArch64::AEK_RDM  | AArch64::AEK_RCPC | AArch64::AEK_DOTPROD |
                              AArch64::AEK_SHA3 | AArch64::AEK_BF16 | AArch64::AEK_SHA2 |
                              AArch64::AEK_AES  | AArch64::AEK_I8MM | AArch64::AEK_SSBS |
-                             AArch64::AEK_SB,
+                             AArch64::AEK_SB   | AArch64::AEK_RAND,
                          "8.6-A"),
         ARMCPUTestParams(
             "neoverse-512tvb", "armv8.4-a", "crypto-neon-fp-armv8",