optimization documentation

[Van Eps, Nathan D. (James Tower)]

Hello,

On the following documentation page, it says "-O also turns on
-fomit-frame-pointer on machines where doing so does not interfere with
debugging.". It also says "-O2 turns on all optimization flags specified by
-O.". Is "-fomit-frame-pointer" always turned on when you use "-O2", or does
the same condition of "-O" apply when you use "-O2"?

http://gcc.gnu.org/onlinedocs/gcc-3.3.2/gcc/Optimize-Options.html#Optimize%2
0Options

Thanks,
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Nathan Van Eps