[llvm] [X86][MC] Support Enc/Dec for EGPR for promoted MOVDIR instruction (PR #74713)

[via llvm-commits]

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@@ -265,8 +265,12 @@ InstructionContext RecognizableInstr::insnContext() const {
       }
     }
     // No L, no W
-    else if (OpPrefix == X86Local::PD)
-      insnContext = EVEX_KB(IC_EVEX_OPSIZE);
+    else if (OpPrefix == X86Local::PD) {
+      if(AdSize == X86Local::AdSize32)
+        insnContext = IC_EVEX_OPSIZE_ADSIZE;
+      else
+        insnContext = EVEX_KB(IC_EVEX_OPSIZE);
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XinWang10 wrote:

This IC_EVEX_OPSIZE_ADSIZE is only used for movdir64b32 so far, I think might not need it. What do you think?

https://github.com/llvm/llvm-project/pull/74713