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Re: GCC 3.3
- From: Mike Stump <mrs at apple dot com>
- To: Steven Bosscher <s dot bosscher at student dot tudelft dot nl>
- Cc: "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>, mark at codesourcery dot com, gcc at gcc dot gnu dot org
- Date: Wed, 30 Apr 2003 12:37:48 -0700
- Subject: Re: GCC 3.3
On Tuesday, April 29, 2003, at 08:16 AM, Steven Bosscher wrote:
Gerald and others have shown, there is no single patch or a small set
of
patches that we can blame the slowdown on; instead GCC consistently
slowed down over a period that spans at least two years: 3.2 was slower
than 3.1, which in turn was slower than 3.0, etc.
For one benchmark we have, between 3.1 and 3.3, there were two patches
that caused compile time speed regressions, the second was small and
was eventually fixed or worked around with the physmem patch. The
first, was a ~30% speed regression in one tiny little patch. This bug
remains unfixed on the 3.3 branch.