LLVM 23 renamed false-deps-lzcnt-tzcnt to false-deps-lzcnt and dropped amx-tf32.

--- a/lib/std/Target/x86.zig
+++ b/lib/std/Target/x86.zig
@@ -314,7 +314,7 @@ pub const all_features = blk: {
         }),
     };
     result[@intFromEnum(Feature.amx_tf32)] = .{
-        .llvm_name = "amx-tf32",
+        .llvm_name = null,
         .description = "Support AMX-TF32 instructions",
         .dependencies = featureSet(&[_]Feature{
             .amx_tile,
@@ -622,7 +622,7 @@ pub const all_features = blk: {
         .dependencies = featureSet(&[_]Feature{}),
     };
     result[@intFromEnum(Feature.false_deps_lzcnt_tzcnt)] = .{
-        .llvm_name = "false-deps-lzcnt-tzcnt",
+        .llvm_name = "false-deps-lzcnt",
         .description = "LZCNT/TZCNT have a false dependency on dest register",
         .dependencies = featureSet(&[_]Feature{}),
     };