[llvm] [GlobalISel] Change MatchTable entries to 1 byte each (PR #74429)

[Wang Pengcheng via llvm-commits]

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@@ -39,10 +40,46 @@ std::string getEnumNameForPredicate(const TreePredicateFn &Predicate) {
 std::string getMatchOpcodeForImmPredicate(const TreePredicateFn &Predicate) {
   return "GIM_Check" + Predicate.getImmTypeIdentifier().str() + "ImmPredicate";
 }
+
+// GIMT_Encode2/4/8
+constexpr StringLiteral EncodeMacroName = "GIMT_Encode";
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wangpc-pp wrote:

Do we really need this?

https://github.com/llvm/llvm-project/pull/74429