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Re: GCC 3.3 compile speed regression - THE GRAPH
On 09-Feb-2003, Diego Novillo <dnovillo@redhat.com> wrote:
> On Mon, 10 Feb 2003, Fergus Henderson wrote:
>
> > compiler version options compilation time
> > -------- ------- ------- ----------------
> > gcc 2.95.4 -c -O2 ... 5.53
> > gcc 2.95.4 -c -O1 ... 3.19
> > gcc 2.95.4 -c -O0 ... 2.65
> > lcc 4.1 -c 1.04
> > tcc 1.9.16 -c 0.34
> >
> What optimizations were used by 'lcc' and 'tcc'? i.e., is GCC 7
> times or 16 times slower than 'tcc'? What about the generated
> code? I want to make sure that we are comparing apples to
> apples.
Neither lcc nor tcc are optimizing compilers.
So the right one to compare compilation speed with is `-O0'.
--
Fergus Henderson <fjh@cs.mu.oz.au> | "I have always known that the pursuit
The University of Melbourne | of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh> | -- the last words of T. S. Garp.