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You can change the input LLVM-IR. On Feb 21, 2013, at 7:16 AM, "Nowicki, Tyler" <tyler.nowicki at intel.com> wrote: > Hi, > > I am interested in evaluating the performance of packed vs scalar double-precision floating point instructions on x86-atom and I was wondering if anyone knows more precisely where to modify llvm to use one or the other. I know I probably need

Hi, I am interested in evaluating the performance of packed vs scalar double-precision floating point instructions on x86-atom and I was wondering if anyone knows more precisely where to modify llvm to use one or the other. I know I probably need to change something in the type legalizer. Could anyone provide more details than that? Thanks, Tyler -------------- next part -------------- An HTML

...ss, I'm mainly interested in Interlagos and Sandybridge, so this conjecture may not hold for other processors such as Atom. Hope this helps, Cameron -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130221/acf6a6c9/attachment.html>