efriedma added a comment. We won't call compiler-rt for i128 multiply on aarch64. It's not worthwhile under any circumstances.
Pattern-matching 64/64->128 multiply in SelectionDAG legalization has been reliable in practice, as far as I know. And even it misses due to weird behavior in instcombine or something like that, we only end up with one or two extra mla instructions, so not a big deal. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D106721/new/ https://reviews.llvm.org/D106721 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
