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IRHash: Efficient Multi-Language Compiler Caching by IR-Level Hashing

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32 points matt_d | 1 comments | 05 Sep 25 08:43 UTC | HN request time: 0.302s | source
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orlp ◴[05 Sep 25 13:21 UTC] No.45138254[source]▶
Every developer I've talked to has had the same experience with compilation caches as me: they're great. Until one day you waste a couple hours of your time chasing a bug caused by a stale cache. From that point on your trust is shattered, and there's always a little voice in the back of your head when debugging something which says "could this be caused by a stale cache?". And you turn it off again for peace of mind.
replies(3): >>45159702 #>>45159758 #>>45160578 #
1. johnisgood ◴[07 Sep 25 16:35 UTC] No.45159702[source]▶
What kind of compilation caches, something like ccache[1]? Do you use it, or would you? It is for C and C++. Check out the features, they are pretty neat, IMO!

The documentation may come in handy:

1. https://ccache.dev/manual/4.11.3.html#_how_ccache_works

2. https://ccache.dev/manual/4.11.3.html#_cache_statistics

and so forth.

[1] https://ccache.dev (ccache - a fast C/C++ compiler cache)