[llvm] RuntimeLibcalls: Add bitset for available libcalls (PR #150869)

[Nikita Popov via llvm-commits]

================
@@ -588,7 +588,12 @@ void RuntimeLibcallEmitter::emitSystemRuntimeLibrarySetCalls(
     PredicateSorter.insert(
         PredicateWithCC()); // No predicate or CC override first.
 
+    constexpr unsigned BitsPerStorageElt = 64;
     DenseMap<PredicateWithCC, LibcallsWithCC> Pred2Funcs;
+
+    SmallVector<uintptr_t, 32> BitsetValues(
----------------
nikic wrote:

```suggestion
    SmallVector<uint64_t, 32> BitsetValues(
```

https://github.com/llvm/llvm-project/pull/150869