S32DS set -O2(optimize more) to the C/C++ compiler, as compared to -O(none optimize)

[王标王]

Hi,  NXP experts 

On the optimization page, we change to O2 setting options. What will be optimized and what problems may be caused by this optimization, and could you please give me one or two examples to help explain the differences between -O2 and -O0.

Here is the options picture, thanks.

[mikedoidge]

Hello @王标王 ,

Probably you will find this article useful to answer your question.

https://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/Optimize-Options.html

Best Regards,

Mike