Clarify feature descriptions

Author: SpencerAbson

clang/test/Driver/print-supported-extensions-aarch64.c

@@ -82,8 +82,8 @@
 // CHECK-NEXT:     ssve-fp8dot4        FEAT_SSVE_FP8DOT4                                      Enable SVE2 FP8 4-way dot product instructions
 // CHECK-NEXT:     ssve-fp8fma         FEAT_SSVE_FP8FMA                                       Enable SVE2 FP8 multiply-add instructions
 // CHECK-NEXT:     sve                 FEAT_SVE                                               Enable Scalable Vector Extension (SVE) instructions
-// CHECK-NEXT:     sve-aes             FEAT_SVE_AES, FEAT_SVE_PMULL128                        Enable SVE AES and quadword PMULL instructions
-// CHECK-NEXT:     sve-aes2            FEAT_SVE_AES2                                          Enable Armv9.6-A SVE multi-vector AES and quadword PMULL instructions
+// CHECK-NEXT:     sve-aes             FEAT_SVE_AES, FEAT_SVE_PMULL128                        Enable SVE AES and quadword SVE polynomial multiply instructions
+// CHECK-NEXT:     sve-aes2            FEAT_SVE_AES2                                          Enable Armv9.6-A SVE multi-vector AES and multi-vector quadword polynomial multiply instructions
 // CHECK-NEXT:     sve-b16b16          FEAT_SVE_B16B16                                        Enable SVE2 non-widening and SME2 Z-targeting non-widening BFloat16 instructions
 // CHECK-NEXT:     sve-bfscale         FEAT_SVE_BFSCALE                                       Enable Armv9.6-A SVE BFloat16 scaling instructions
 // CHECK-NEXT:     sve-f16f32mm        FEAT_SVE_F16F32MM                                      Enable Armv9.6-A FP16 to FP32 Matrix Multiply

llvm/lib/Target/AArch64/AArch64Features.td

@@ -371,7 +371,7 @@ def FeatureSVE2 : ExtensionWithMArch<"sve2", "SVE2", "FEAT_SVE2",
 
 def FeatureSVEAES : ExtensionWithMArch<"sve-aes", "SVEAES",
   "FEAT_SVE_AES, FEAT_SVE_PMULL128",
-  "Enable SVE AES and quadword PMULL instructions", [FeatureAES]>;
+  "Enable SVE AES and quadword SVE polynomial multiply instructions", [FeatureAES]>;
 
 def AliasSVE2AES : ExtensionWithMArch<"sve2-aes", "ALIAS_SVE2AES", "",
   "An alias of +sve2+sve-aes", [FeatureSVE2, FeatureSVEAES]>;
@@ -551,7 +551,7 @@ def FeatureSVE2p2 : ExtensionWithMArch<"sve2p2", "SVE2p2", "FEAT_SVE2p2",
   "Enable Armv9.6-A Scalable Vector Extension 2.2 instructions", [FeatureSVE2p1]>;
 
 def FeatureSVEAES2: ExtensionWithMArch<"sve-aes2", "SVE_AES2", "FEAT_SVE_AES2",
-  "Enable Armv9.6-A SVE multi-vector AES and quadword PMULL instructions">;
+  "Enable Armv9.6-A SVE multi-vector AES and multi-vector quadword polynomial multiply instructions">;
 
 def FeatureSVEBFSCALE: ExtensionWithMArch<"sve-bfscale", "SVE_BFSCALE", "FEAT_SVE_BFSCALE",
   "Enable Armv9.6-A SVE BFloat16 scaling instructions">;