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Re: tree-ssa performance
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Joe Buck <jbuck at synopsys dot com>
- Cc: Diego Novillo <dnovillo at redhat dot com>, Richard dot Earnshaw at arm dot com, Steven Bosscher <s dot bosscher at student dot tudelft dot nl>, Andrew Macleod <amacleod at redhat dot com>, Gerald Pfeifer <pfeifer at dbai dot tuwien dot ac dot at>, Andrew Haley <aph at redhat dot com>, Jeff Sturm <jsturm at one-point dot com>, Tim Josling <tej at melbpc dot org dot au>, Zack Weinberg <zack at codesourcery dot com>, gcc mailing list <gcc at gcc dot gnu dot org>, Neil Booth <neil at daikokuya dot co dot uk>
- Date: Tue, 10 Jun 2003 17:49:38 -0400
- Subject: Re: tree-ssa performance
>>>>> Joe Buck writes:
Joe> The only way out is to have the allowable memory, by default, be a
Joe> constant or depend only on the input. People with low memory can choose
Joe> a smaller value; people with lots of memory can choose a larger value,
Joe> but the output code has to be determined solely by the compiler flags.
XLC defaults to a reasonable limit that the user can override.
You proposed the premise of the limits depending on the user's
machine resources. I did not agree that it should be implemented that
way.
David