[klelatti]

I've been working on a project that auto generates c programs - sometimes up to 1.5m lines of code - in a single file (actually two files but the second is only 35 lines)

Not open source but happy to share benchmarks if that would be useful.

[dhekir]

Too bad it's not open source, but will some of the generated programs be?

Also, would you mind comparing it to Csmith (https://embed.cs.utah.edu/csmith/)?

[klelatti]

There is quite a lot of IP in the generated programs so probably not possible to share sadly.

I wasn't aware of Csmith so thanks for highlighting. My C code doesn't really test many features of the compiler so I suspect mainly of interest in seeing just how the compiler handles a really large single file.

[efferifick]

There's also https://github.com/intel/yarpgen which I haven't used. I believe there are a couple of others...

[klelatti]

Some compile times for those interested:

Hardware 2016 12" MacBook (1.1GHz Core m3) Ubuntu 20.04 running in Docker Clang 9 -O0 optimisation (more optimisation increases the compile times a lot!)

0.53m LOC 41MB 34s

0.99m LOC 76MB 91s

1.44m LOC 110MB 167s

I suspect the code is relatively straightforward to compile - few function calls etc.

[pulse7]

Please share the benchmarks...

[klelatti]

Will do - give me a few hours (and that's not the compilation times!).