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

[Wang Pengcheng via llvm-commits]

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@@ -647,6 +670,10 @@ class GIMatchTableExecutor {
   /// MI and IntoMI do not need to be in the same basic blocks, but MI must
   /// preceed IntoMI.
   bool isObviouslySafeToFold(MachineInstr &MI, MachineInstr &IntoMI) const;
+
+  template <typename Ty> static Ty readBytes(const uint8_t *MatchTable) {
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wangpc-pp wrote:

What about `readBytesAs`?

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