diff options
| author | Jade Lovelace <lix@jade.fyi> | 2024-05-30 13:44:01 -0700 |
|---|---|---|
| committer | jade <lix@jade.fyi> | 2024-05-30 21:54:21 +0000 |
| commit | 0f99ed43f15aba7805ebe6d757a2d98418596205 (patch) | |
| tree | f90b6b293ffc4036a24ec530566bbb0d383eeb50 /src/pch | |
| parent | e6e5cacabeab0959d092aaf4957932a0b6f4b78e (diff) | |
build-time: remove 20% more by PCH'ing C++ stdlib
It seems like someone implemented precompiled headers a long time ago
and then it never got ported to meson or maybe didn't work at all.
This is, however, blessedly easy to simply implement. I went looking for
`#define` that could affect the result of precompiling the headers, and
as far as I can tell we aren't doing any of that, so this should truly
just be free build time savings.
Previous state:
Compilation (551 times):
Parsing (frontend): 1302.1 s
Codegen & opts (backend): 956.3 s
New state:
**** Time summary:
Compilation (567 times):
Parsing (frontend): 1123.0 s
Codegen & opts (backend): 1078.1 s
I wonder if the "regression" in codegen time is just doing the PCH
operation a few times, because meson does it per-target.
Change-Id: I664366b8069bab4851308b3a7571bea97ac64022
Diffstat (limited to 'src/pch')
| -rw-r--r-- | src/pch/precompiled-headers.hh | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/pch/precompiled-headers.hh b/src/pch/precompiled-headers.hh new file mode 100644 index 000000000..f52f1cab8 --- /dev/null +++ b/src/pch/precompiled-headers.hh @@ -0,0 +1,60 @@ +#include <algorithm> +#include <array> +#include <atomic> +#include <cassert> +#include <cctype> +#include <chrono> +#include <climits> +#include <cmath> +#include <condition_variable> +#include <cstddef> +#include <cstdint> +#include <cstdio> +#include <cstdlib> +#include <cstring> +#include <exception> +#include <functional> +#include <future> +#include <iostream> +#include <limits> +#include <list> +#include <locale> +#include <map> +#include <memory> +#include <mutex> +#include <numeric> +#include <optional> +#include <queue> +#include <random> +#include <regex> +#include <set> +#include <sstream> +#include <stack> +#include <stdexcept> +#include <string> +#include <thread> +#include <unordered_map> +#include <unordered_set> +#include <vector> + +#include <boost/format.hpp> + +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <grp.h> +#include <netdb.h> +#include <pwd.h> +#include <signal.h> +#include <sys/resource.h> +#include <sys/select.h> +#include <sys/socket.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/utsname.h> +#include <sys/wait.h> +#include <termios.h> +#include <unistd.h> + +#include <nlohmann/json.hpp> |