sebpop added a comment. In https://reviews.llvm.org/D26991#606764, @mclow.lists wrote:
> /me wonders what the perf difference when `_LIBCPP_UNROLL_LOOPS` is defined > or not. > > I think this (`_LIBCPP_UNROLL_LOOPS`) falls squarely into Chandler's request > that we complain to him when the compiler generates sub-optimal code, instead > of doing things like manually unrolling loops. I think we should remove all the code in the ifdef: it looks to me like this code was left in from a previous "experiment", as it never gets executed unless one compiles the code with -D_LIBCPP_UNROLL_LOOPS, which seems wrong. Let's push this cleanup in a separate commit. https://reviews.llvm.org/D26991 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
