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

[via llvm-commits]

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@@ -885,7 +887,9 @@ void DisassemblerTables::emitContextTable(raw_ostream &o, unsigned &i) const {
   for (unsigned index = 0; index < ATTR_max; ++index) {
     o.indent(i * 2);
 
-    if ((index & ATTR_EVEX) || (index & ATTR_VEX) || (index & ATTR_VEXL)) {
+    if ((index & ATTR_EVEX) && (index & ATTR_OPSIZE) && (index & ATTR_ADSIZE))
+      o << "IC_EVEX_OPSIZE_ADSIZE";
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XinWang10 wrote:

Yes, we need new context for MOVDIR64B64_EVEX, otherwise it would have conflict with MOVDIR64B32_EVEX, their context should all be IC_EVEX_OPSIZE. And special handling is to make disassembler could add attribute ADSIZE to movdir64b so that it could match to IC_EVEX_OPSIZE_ADSIZE context.

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