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Re: [tree-ssa] New regressions as of 2003-11-04
On Monday 10 November 2003 20:29, Zdenek Dvorak wrote:
> > >
> > >Huh??? Timings of what?
> >
> > When I wrote remove_useless_stmts_and_vars I actually took the time to
> > measure how it impacted compile-time performance.
>
> you wrote it working on cfg? Otherwise I don't see how the timing is
> relevant. Anyway, my patch does not change cfg at all and the only
> thing it does is a simple pass over all statements, so I don't see a
> potential for it to be slow.
This kind of reasoning is why GCC is slowing down all the time.
Yes, a pass over all statements _does_ have a compile time impact. Especially
if we keep adding new ones by the dozens claiming that they don't impact
compile time.
Gr.
Steven