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[Bug c++/81476] severe slow-down with range-v3 library compared to clang
- From: "h2+bugs at fsfe dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 18 Jul 2017 15:49:35 +0000
- Subject: [Bug c++/81476] severe slow-down with range-v3 library compared to clang
- Auto-submitted: auto-generated
- References: <bug-81476-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81476
--- Comment #5 from Hannes Hauswedell <h2+bugs at fsfe dot org> ---
> Please clarify if the problem is in compilation time (how long the compiler takes to compile the file), or in performance of generated code.
Performance of code.
> Please attach preprocessed testcase obtained with -E or -save-temps.
I have added intermediate code.
> For clang are you using GCC's libstdc++ or llvm's libc++?
For clang I am using libc++ (FreeBSD). I has no immediate luck trying to use
libstdc++ with clang (to exclude library issues), but I will give it another
shot later.