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GCC loop optimizations
- From: linuxkaffee at gmx dot net
- To: gcc at gcc dot gnu dot org
- Date: Thu, 28 Feb 2008 22:54:08 +0100
- Subject: GCC loop optimizations
Hi,
I'd like to know your experiences with the gcc loop optimizations.
What loop optimizations (in your opinion) can be applied to a large
number of programs and yield a (significant) improvement of the
program run-time?
I've tested the gcc compiler optimization "loop unswitching"
(introduced in gcc 3.4) but going through a large number of different
benchmarks I could find very few cases where the optimization could be
applied. Do you share my experience?
Regards,
Tim
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