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I'm moving forward with this now given no one has raised objections. Based on Sean's comments, the naming I'm going to use is: FrontendInfo/PerfTips I plan on committing an initial version based on what was discussed here without further review. I'm going to keep the first version short, and then open it for others to contribute. Philip On 02/24/2015 02:13 PM, Sean Silva wrote: > SGTM. > > I like your idea of startin...

I'd like to propose that we create a new Performance Guide document. The target of this document will be frontend authors, not necessarily LLVM contributors. The content will be a collection of items a frontend author might want to know about how to generate LLVM IR which will optimize well. Some ideas on topics that might be worthwhile: - Prefer sext over zext when value is known to be