efriedma-quic wrote: > the baseline code generation uses memset over the entire union when the size > is large
That looks like an unintended side-effect of CheckAggExprForMemSetUse: it's supposed to check how much of the initialization is non-zero, but it's assuming all padding needs to be zeroed. Which we weren't explicitly doing before, but I guess it's convenient here. And given nobody has filed a bug report for this (I think?), it doesn't seem this memset is causing significant issues for anyone. https://github.com/llvm/llvm-project/pull/97121 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
