[llvm] [MVT][TableGen] Extend Machine Value Type to `uint16_t` (PR #99657)

[Craig Topper via llvm-commits]

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@@ -599,7 +600,8 @@ unsigned MatcherTableEmitter::EmitMatcher(const Matcher *N,
         IdxSize = 2; // size of opcode in table is 2 bytes.
       } else {
         Child = cast<SwitchTypeMatcher>(N)->getCaseMatcher(i);
-        IdxSize = 1; // size of type in table is 1 byte.
+        IdxSize = GetVBRSize(cast<SwitchTypeMatcher>(N)->getCaseType(
+            i)); // size of type in table is sizeof(MVT) byte.
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topperc wrote:

This comment is wrong for VBR isn't it?

https://github.com/llvm/llvm-project/pull/99657