jdoerfert marked an inline comment as done. jdoerfert added a comment. I tried to determine why we don't emit such calls for c++11 and stdc++ but I was not successful :( Tracking back from the emission lead to the generic expression codegen without any (obvious) check of the runtime library or std versions.
================ Comment at: clang/lib/Headers/__clang_cuda_complex_builtins.h:136-137 + __d = _COPYSIGNf(_ISINFf(__d) ? 1 : 0, __d); + if (_ISNANf(__a)) + __a = _COPYSIGNf(0, __a); + if (_ISNANf(__b)) ---------------- arsenm wrote: > Why does this try to preserve the sign of a nan? They are meaningless Idk [I only work here... ;)] I guess the algorithm was once copied from libc++, unclear if the one in there is still the same, we could check. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D80897/new/ https://reviews.llvm.org/D80897 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
