[llvm] [X86][MC] Support encoding/decoding for APX variant MUL/IMUL/DIV/IDIV instructions (PR #76919)

[Shengchen Kan via llvm-commits]

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@@ -72,23 +72,59 @@ multiclass Mul<bits<8> o, string m, Format RegMRM, Format MemMRM, SDPatternOpera
   // This probably ought to be moved to a def : Pat<> if the
   // syntax can be accepted.
   let Defs = [AL,EFLAGS,AX], Uses = [AL] in
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KanRobert wrote:

Will do

https://github.com/llvm/llvm-project/pull/76919