[libcxx-commits] [libcxx] [libc++] Replace `__compressed_pair` with `[[no_unique_address]]` (PR #76756)

[Louis Dionne via libcxx-commits]

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@@ -93,7 +93,8 @@ static_assert(TEST_ALIGNOF(unordered_map_alloc<char, final_small_iter_allocator<
 struct TEST_ALIGNAS(32) AlignedHash {};
 struct UnalignedEqualTo {};
 
-static_assert(sizeof(std::unordered_map<int, int, AlignedHash, UnalignedEqualTo>) == 96, "");
+// This part of the ABI has been broken between LLVM 20 and LLVM 21.
----------------
ldionne wrote:

```suggestion
// This part of the ABI has been broken between LLVM 19 and LLVM 20.
```

https://github.com/llvm/llvm-project/pull/76756