[llvm] [X86] Support lowering for APX promoted BMI instructions. (PR #77433)

[Simon Pilgrim via llvm-commits]

================
@@ -1241,43 +1241,49 @@ let Predicates = [HasBMI, In64BitMode], Defs = [EFLAGS] in {
   defm BLSI64 : Bls<"blsi", MRM3r, MRM3m, Xi64, "_EVEX">, EVEX;
 }
 
-let Predicates = [HasBMI] in {
+multiclass Bls_Pats<string suffix> {
----------------
RKSimon wrote:

`bls_pats`

https://github.com/llvm/llvm-project/pull/77433