[llvm] [X86][MC] Support Enc/Dec for NF for promoted BMI instructions in 73899 (PR #76709)

[Shengchen Kan via llvm-commits]

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@@ -1244,6 +1244,15 @@ let Predicates = [HasBMI, HasEGPR], Defs = [EFLAGS] in {
   defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem, WriteBLS, "_EVEX">, REX_W, EVEX;
 }
 
+let Predicates = [In64BitMode], Pattern = [(null_frag)] in {
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KanRobert wrote:

Remove `Pattern = [(null_frag)]`, the class does not have any pattern.

https://github.com/llvm/llvm-project/pull/76709