Re: Performance optimizations for Intel Core 2 and Core i7 processors

2010-05-20 Thread Alexander Strange
On May 20, 2010, at 8:04 AM, Steven Bosscher wrote: > On Mon, May 17, 2010 at 8:44 AM, Maxim Kuvyrkov > wrote: >> CodeSourcery is working on improving performance for Intel's Core 2 and Core >> i7 families of processors. >> >> CodeSourcery plans to add support for unaligned vector instructions

Re: "-fno-unswitch-loops" option have no effect?

2009-08-17 Thread Alexander Strange
On Aug 17, 2009, at 10:50 AM, Bernd Roesch wrote: [..] There is no need for much detail, just compile any bigger sourcecode with -O3 -fno-.. and after that with -O2 When the object files are not identical, something is wrong and I can start a bug report. how much is size diffrent ?

Re: GCC 4.0, Fast Math, and Acovea

2005-05-03 Thread Alexander Strange
On May 3, 2005, at 4:54 PM, Diego Novillo wrote: On Tue, May 03, 2005 at 04:45:55PM -0400, Scott Robert Ladd wrote: If you have a suggestion for better benchmarks, I'm listening. Is your ray tracer available? I recently heard of Openbench, a project to create an open version of the SPEC benchm

Re: Questions about trampolines

2005-03-14 Thread Alexander Strange
On Mar 14, 2005, at 8:11 AM, Marc Espie wrote: In article <[EMAIL PROTECTED]> you write: Well as I said above, trampolines or an equivalent are currently critically needed by some front ends (and of course by anyone using the (very useful IMO) extension of nested functions in C). This is your opi