[clang] [llvm] [AArch64] Split FeatureLS64 to LS64_ACCDATA and LS64_V. (PR #101712)

[Alexandros Lamprineas via cfe-commits]

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@@ -3682,6 +3682,8 @@ static const struct Extension {
     {"sve2-bitperm", {AArch64::FeatureSVE2BitPerm}},
     {"sve2p1", {AArch64::FeatureSVE2p1}},
     {"ls64", {AArch64::FeatureLS64}},
+    {"ls64_v", {AArch64::FeatureLS64_V}},
+    {"ls64_accdata", {AArch64::FeatureLS64_ACCDATA}},
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labrinea wrote:

Hmm, there's a problem with this change too. If we map `ls64` to FeatureLS64_ACCDATA, then the directive `nols64` will not transitively remove FeatureLS64_V and FeatureLS64.

https://github.com/llvm/llvm-project/pull/101712