[llvm] [X86][MC] Compress APX Promoted instrs from evex to legacy encoding to save code size. (PR #77065)

[Shengchen Kan via llvm-commits]

https://github.com/KanRobert commented:

Why is llvm/test/CodeGen/X86/invpcid-intrinsic.ll llvm/test/CodeGen/X86/x64-cet-intrinsics.ll not affected? I see you updated it in https://github.com/llvm/llvm-project/pull/76786

https://github.com/llvm/llvm-project/pull/77065