https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58770
s at martinien dot de changed:
What |Removed |Added
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CC| |s at martinien dot de
--- Comment #6 from s at martinien dot de ---
The issue still exists in gcc7.
Some numbers from the 3*10000 file inclusion benchmark here:
https://tinodidriksen.com/2011/08/cpp-include-speed/
$ /usr/bin/time g++ -c guards-only/main.cpp
0:00.28
$ /usr/bin/time g++ -c pragma-only/main.cpp
0:01.46
Compared to clang, gcc's guard implementation is pretty fast:
$ /usr/bin/time clang++ -c guards-only/main.cpp
0:00.92
$ /usr/bin/time clang++ -c pragma-only/main.cpp
0:00.87
