On Thu, Sep 01, 2005 at 11:45:35PM +0200, Steven Bosscher wrote: > On Thursday 01 September 2005 23:19, girish vaitheeswaran wrote: > > Sorry I still did not follow. This is what I > > understood. During Feedback optimization apart from > > the -fprofile-generate, one needs to turn on > > -fmove-loop-invariants. > > You don't "need to". It just might help iff you are using a gcc 4.1 > based compiler. > > > However this option is not > > recognized by the gcc 3.4.4 or 3.4.3 compilers. What > > am I missing? > > You are missing that > 1) this whole thread does not concern gcc 3.4.x; and > 2) the option -fmove-loop-invariants does not exist in 3.4.x.
Girish started this thread about problems he is seeing with GCC 3.4.3 (see http://gcc.gnu.org/ml/gcc/2005-07/msg00866.html). Others of us chimed in about similar issues with later versions. Suggestions for avoiding the problems have been about those later versions, not the version he is using. Janis
