[hrydgard]

Function calls are very fast (unless there's really a lot of parameter copying/saving-to-stack) and if you can re-use a chunk of code from multiple places, you'll reduce pressure on the instruction cache. Inlining is not always ideal.

[janwas]

Perhaps the use cases are different (heavily data-parallel), but FWIW I do not remember many cases where we were frontend bound, so icache hasn't been a concern.