March 22, 2016
11:46 a.m.
On Tue, Mar 22, 2016 at 7:35 PM, Nicholas Mc Guire <der.herr@hofr.at> wrote:
yes - but for any given code you will find that many of those options actually have no effect for the particular code blob. The set of flags effectively impacting the generated object file is generally much smaller than the ones reported by gcc -c -Q -O1 --help=optimizers.
thx! hofrat
yeah,only several options take effect. Because "-O0" will break the link progress,I just want use "-O1" and some other options to approximate the effects of "-O0". regards, Hao Lee