Advanced Micro Devices Inc (AMD)

[mmoy]

I didn't know that such a tool exists. I've compared IDCT
routines in FP and Scaled Integer and found that Scaled
Integer performs much better on SSE and SSE2 machines. You
can lose accuracy though but this is for displaying JPEGs
in Mozilla and I haven't heard any degradation reports from
the code nor have I seen any myself.

I'll have to take a look at this tool. I've done a lot of
work but I know that there are improvements possible and I
didn't focus that much on pipelines.

Does the tool recommend code changes or reorder instructions
for you or do you tweak, test and repeat?