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...standard Cortex-a9 design from ARM, Swift is the CPU that Apple that's used in their latest products that is significantly modified from a basic ARM design and then there's the next generation Cortex-a15 design from ARM. Each of them handles the same instruction set, but the implementation detaiis of each mean that different instruction sequences may perform better on each. Cheers, Dave -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130212/1445adca/attachment.html>

Hi all, Sorry for my naïve question but what is Swift ? Yes vmlx-forwarding is the only variable I changed in my tests. I did the experiment on another popular FP benchmark and observe a 14% speed-up only by disabling vmlx-forwarding. Best Regards Seb My VMLA performance work was on Swift, rather than Cortex-A9. Sebastian - is vmlx-forwarding really the only variable you changed between your

...standard Cortex-a9 design from ARM, Swift is the CPU that Apple that's used in their latest products that is significantly modified from a basic ARM design and then there's the next generation Cortex-a15 design from ARM. Each of them handles the same instruction set, but the implementation detaiis of each mean that different instruction sequences may perform better on each. Cheers, Dave -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130212/2472f5ef/attachment.html>