nikic added a comment. @TimNN Do you have an IR sample for this? DAE is supposed to strip UB-implying attributes when converting arguments to poison here: https://github.com/llvm/llvm-project/blob/cbe5b2dd914b7ee47bb4d0f67af154a40be4d208/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp#LL291C17-L291C37
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