On Mon, 6 Sep 2010, Yao Qi wrote: > Yao Qi wrote: > > Hi, > > We are looking for some possible improvements and optimizations on > > thumb2 code size. Currently, I am running some benchmarks with > > compilation flag "-Os -march=armv7-a -mthumb", and hope to find some > > thing interesting that we can improve. Beside that, do you have some > > ideas on this topic? or do you have some observations on thumb2 code > > that we may probably improve the size? > > > > Any thoughts on this are appreciated. > > I've put some ideas in this wiki page, > https://wiki.linaro.org/Internal/People/YaoQi/Thumb2Optimize
Your remark for the first example is wrong. GCC has to store r8 (or any other register for that matter) in order to keep the stack pointer 64-bit aligned, as required by EABI. Nicolas _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
