Matt Sealey <n...@bakuhatsu.net> writes: > BTW has there been any evaluation of the penalty for the extra > branching, or the performance hit for the ARMv7-without-division > cases?
The branches themselves probably have minimal overhead. There will however be code to preserve call-clobbered registers (and move the values to/from r0/r1) that would not be needed if the div instructions were done inline (obviously such a kernel could only run on hardware with division support). -- Måns Rullgård m...@mansr.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
