llvm-project

4b267d5c - [MLIR][MemRef] Emit error on atomic generic result op defined outside the region (#172190)

[MLIR][MemRef] Emit error on atomic generic result op defined outside the region (#172190) While figuring out how to perform an atomic exchange on a memref, I tried the generic atomic rmw with the yielded value captured from the enclosing scope (instead of a plain atomic_rmw with `arith::AtomicRMWKind::assign`). Instead of segfaulting, this PR changes the pass to produce an error when the result is not found in the region's IR map. It might be more useful to give a suggestion to the user, but giving an error message instead of a crash is at least an imrovement, I think. See: #172184