Slowdowns in code generated by GCC>=3.3

[Steven Bosscher]

On Wednesday 20 October 2004 16:25, Remko Troncon wrote:
> > This looks similar to PR15242 and related bugs.
>
> It sure does. However, I tried applying the patch to GCC-CVS, and
> recompiled with -O3, but that didn't do anything to my performance :(

Probably because it happens too late and you're still killed by
register pressure, or does not actually change anything at all
for your test case (did you look to see if the computed jump was
un-factored?).  Try -fno-crossjumping.

Gr.
Steven