[LLVMdev] arm compiler benchmarks

David Chisnall David.Chisnall at cl.cam.ac.uk
Wed Feb 27 00:54:19 PST 2013


On 27 Feb 2013, at 00:45, Renato Golin <renato.golin at linaro.org> wrote:

> People normally care about code size on Cortex-R/M and ARM9 or older, and in there, not many LLVM users.

There are a lot of A8 devices around with 256KB (or less) of L2 cache (32KB of L1 i-cache), and so code density, if not code size, matters a lot for these.  Cache sizes in mobile chips tend to be as small as possible, as it's very hard to turn off those transistors (there are several projects at ARM and elsewhere that I'm aware of in this direction, but I don't know of any in shipping products yet).

David





More information about the llvm-dev mailing list