================
@@ -365,9 +365,12 @@ def FeatureSVE2 : ExtensionWithMArch<"sve2", "SVE2",
"FEAT_SVE2",
"Enable Scalable Vector Extension 2 (SVE2) instructions",
[FeatureSVE, FeatureUseScalarIncVL]>;
-def FeatureSVE2AES : ExtensionWithMArch<"sve2-aes", "SVE2AES",
+def FeatureSVEAES : ExtensionWithMArch<"sve-aes", "SVEAES",
"FEAT_SVE_AES, FEAT_SVE_PMULL128",
- "Enable AES SVE2 instructions", [FeatureSVE2, FeatureAES]>;
+ "Enable SVE AES and quadword SVE polynomial multiply instructions",
[FeatureAES]>;
+
+def AliasSVE2AES : ExtensionWithMArch<"sve2-aes", "ALIAS_SVE2AES", "",
----------------
labrinea wrote:
If you read at the definition of ExtensionWithMArch the second argument is used
to generate the AEK_ field. See inside
./include/llvm/TargetParser/AArch64TargetParserDef.inc in the build directory.
We now have this entry:
`{"sve2-aes", {}, AArch64::AEK_ALIAS_SVE2AES, "", "An alias of +sve2+sve-aes",
"+sve2-aes", "-sve2-aes"},`
I think the ALIAS subexpression has no place in AEK.
https://github.com/llvm/llvm-project/pull/114293
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