[llvm] [X86][MC] Support Enc/Dec for EGPR for promoted AMX-TILE instruction (PR #76210)

[Shengchen Kan via llvm-commits]

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@@ -0,0 +1,6 @@
+# RUN: llvm-mc --disassemble %s -triple=x86_64 | FileCheck %s --check-prefixes=ATT
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KanRobert wrote:

Good suggestion. I agree with you and phoebe, we can classify the instruction by CPUID if there is no NDD and NF variant, For NDD, NF instructions, we can keep using the mnemonic. 

https://github.com/llvm/llvm-project/pull/76210