Hi, I wish to selectively enable specific optimizations to observe its effect on the source. My project requires me to do this analysis. It seemed, the -f* flags would enable me to do that. But it turns out that individual optimizations can't be enabled like that, and all the optimizations at a specific level gets enabled when I use a -Ox switch. This faq at http://gcc.gnu.org/wiki/FAQ#optimization-options, says this too.
So here are my two questions : a) Is there any way to observe the effect of a particular optimization, without the obvious option of using a lot of -fno switches. b) And do the -f* switches serve any purpose, if I can't enable individual optimizations using them. Thanks, Sharjeel Imam
