[llvm] [X86] Support APX promoted RAO-INT and MOVBE instructions (PR #77431)

[Shengchen Kan via llvm-commits]

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@@ -1090,7 +1090,7 @@ def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
 //===----------------------------------------------------------------------===//
 // MOVBE Instructions
 //
-let Predicates = [HasMOVBE] in {
+let Predicates = [HasMOVBE, NoEGPR] in {
   let SchedRW = [WriteALULd] in {
   def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
                     "movbe{w}\t{$src, $dst|$dst, $src}",
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KanRobert wrote:

Rewrite MOVBE with `ITy`

https://github.com/llvm/llvm-project/pull/77431