[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, I may have been wrong. Mapping 'ls64' to FeatureLS64_ACCDATA will enable 
all three (FeatureLS64,FeatureLS64_V,FeatureLS64_ACCDATA) but then 'nols64' 
will only disable FeatureLS64_ACCDATA (not the other two). For that we would 
have to map 'ls64' to FeatureLS64, but then it would not enable the other two :(

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