================
@@ -330,6 +330,9 @@ def warn_atomic_op_misaligned : Warning<
"; the expected alignment (%0 bytes) exceeds the actual alignment (%1
bytes)">,
InGroup<AtomicAlignment>;
+def err_atomic_op_size_zero : Error<
----------------
AaronBallman wrote:
Rather than introduce a new diagnostic, I think it makes more sense to modify
`err_atomic_builtin_must_be_pointer` to say "... must be a pointer %select{to a
non-zero-sized object}1 (%0 invalid)".
https://github.com/llvm/llvm-project/pull/91057
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