[clang] [llvm] [ARM][AArch64] Split FEAT_SHA1 from FEAT_SHA256. (PR #99816)

[Jon Roelofs via llvm-commits]

jroelofs wrote:

I think you also need:
```
diff --git a/llvm/lib/Target/AArch64/AArch64FMV.td b/llvm/lib/Target/AArch64/AArch64FMV.td
index 7a40c83b2bb2..8f42ece439a7 100644
--- a/llvm/lib/Target/AArch64/AArch64FMV.td
+++ b/llvm/lib/Target/AArch64/AArch64FMV.td
@@ -75,7 +75,7 @@ def : FMVExtension<"rdm", "FEAT_RDM", "+rdm,+fp-armv8,+neon", 108>;
 def : FMVExtension<"rng", "FEAT_RNG", "+rand", 10>;
 def : FMVExtension<"rpres", "FEAT_RPRES", "", 300>;
 def : FMVExtension<"sb", "FEAT_SB", "+sb", 470>;
-def : FMVExtension<"sha1", "FEAT_SHA1", "+fp-armv8,+neon", 120>;
+def : FMVExtension<"sha1", "FEAT_SHA1", "+sha1,+fp-armv8,+neon", 120>;
+def : FMVExtension<"sha2", "FEAT_SHA2", "+sha2,+sha1,+fp-armv8,+neon", 130>;
+def : FMVExtension<"sha3", "FEAT_SHA3", "+sha3,+sha2,+sha1,+fp-armv8,+neon", 140>;
 def : FMVExtension<"simd", "FEAT_SIMD", "+fp-armv8,+neon", 100>;
```

https://github.com/llvm/llvm-project/pull/99816