[llvm] [GlobalISel] Optimize ULEB128 usage (PR #90565)

[Jay Foad via llvm-commits]

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@@ -1565,13 +1565,14 @@ bool MemoryAddressSpacePredicateMatcher::isIdentical(
 
 void MemoryAddressSpacePredicateMatcher::emitPredicateOpcodes(
     MatchTable &Table, RuleMatcher &Rule) const {
+  assert(AddrSpaces.size() < 255);
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jayfoad wrote:

```suggestion
  assert(AddrSpaces.size() < 256);
```

https://github.com/llvm/llvm-project/pull/90565