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Re: Limits of stage3 changes
- From: "Kaveh R. GHAZI" <ghazi at caip dot rutgers dot edu>
- To: Steven Bosscher <stevenb dot gcc at gmail dot com>
- Cc: GCC <gcc at gcc dot gnu dot org>, Mark Mitchell <mark at codesourcery dot com>, bonzini at gcc dot gnu dot org
- Date: Sun, 18 Nov 2007 01:28:54 -0500 (EST)
- Subject: Re: Limits of stage3 changes
- References: <571f6b510711161443r4727c091h1f6f211b0a7c119a@mail.gmail.com>
On Fri, 16 Nov 2007, Steven Bosscher wrote:
> Question is, whether this kind of rather large changes is acceptable
> for stage 3 or not. Me, I call it a "regression fix" if it reduces
> compile time. But I will not work on it now (or ask help from others)
> if it is a priori not acceptable for stage 3.
>
> Thus, thoughts please! :-)
I think the answer is "maybe". In the past we have counted compile-time
savings as appropriate for stage3 regression fixes. However IMHO you
would need to provide some measurement of the improvements (memory saved,
speed timings) so the RM and perhaps middle-end maintainers can weigh the
risk vs benefit and make an informed decision.
So far you've only shown us the "risky" part, i.e. the patch.
--Kaveh
--
Kaveh R. Ghazi ghazi@caip.rutgers.edu