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Re: IRA for GCC 4.4
- From: Chris Lattner <clattner at apple dot com>
- To: Mark Mitchell <mark at codesourcery dot com>
- Cc: "Vladimir N. Makarov" <vmakarov at redhat dot com>, "gcc-patches >> GCC Patches" <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 24 Apr 2008 10:04:37 -0700
- Subject: Re: IRA for GCC 4.4
- References: <48103C70.4020306@codesourcery.com>
On Apr 24, 2008, at 12:53 AM, Mark Mitchell wrote:
* Ensure that IRA performance on SPEC is no worse than old-RA
performance on primary targets. Again, I hope and expect that the
target maintainers will work with you to gather data and investigate
any issues.
Are there any compile-time performance goals/requirements for this?
It would be nice to not take a 40% slowdown at -O0 for example (which
is apparently the case currently). What is the acceptable compile-
time hit at -O0 and -O3?
-Chris