Re: Plan of CS304: Thumb2 tuning investigation

On 10/05/2010 10:01 PM, Yao Qi wrote:

• Fix speed regression

I found speed regression on EEMBC on linaro 4.5, compared with FSF GCC 4.5.0, and I'll investigate why speed regression happens on these cases. Here is a table below about speed regression compared between FSF GCC 4.5.0 and Linaro GCC 4.5 (revno:99398) O2 O3 puwmod01, -5.5 -3.5 bitmnp01, -7.9 -0.7 routelookup, -6.4 -8.2 conven00data_1, -7.2 -5.8 conven00data_2, -8.1 -7.3 conven00data_3, -6.6 -5.5 viterb00data_1, -1.7 +5.9 viterb00data_2, -4.3 +2.6 viterb00data_3, -2.3 +1.8 viterb00data_4, -5.3 -0.3

Update my tree to latest linaro 4.5 (revno:99399), result is similar to revno:99398.