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by fulafel 3252 days ago
They used GCC before Clang, so they switched to a less optimizing compiler.
2 comments
wuch 3251 days ago
I would argue to the contrary, especially that we are comparing modern Clang/LLVM with a GCC that was released back in 2008. At that point C programming language didn't even have a memory model.
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microcolonel 3251 days ago
Their GCC version was forked a while back because of quality issues in "stable" releases of GCC. Optimizing compilers have gotten a lot better since then. Upstream Clang still (in aggregate) generates worse code than upstream GCC, but the point is that Clang's stable releases tend to have fewer correctness regressions, and optimize more than OpenBSD's current version of GCC.
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