efriedma added a comment. In D124158#3480384 <https://reviews.llvm.org/D124158#3480384>, @arsenm wrote:
> I'm thinking noundef is a bit of red herring here. The real problem seems to > be arising from the assume call which is inserted, which now introduces the > assumption that the lane ID must be 0 The optimizer is creating the llvm.assume call based on the violation of the noundef attribute. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D124158/new/ https://reviews.llvm.org/D124158 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
