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...lation as such ,Please can you through some lights like references etc ,Which states that how can i cross compile the llvm for Bulldozer and run the performance test against my changes.So that i can tune for a better result. Thanks ~Umesh On Fri, Nov 22, 2013 at 8:28 PM, Mike Vermeulen <mevermeulen at gmail.com>wrote: > If you haven't found it yet, the last public AMD Software Optimization > Guide for Family 15h is here: > http://developer.amd.com/wordpress/media/2012/03/47414_15h_sw_opt_guide.pdf > > This one describes both Bulldozer and Piledriver processors. Chapter...

If you haven't found it yet, the last public AMD Software Optimization Guide for Family 15h is here: http://developer.amd.com/wordpress/media/2012/03/47414_15h_sw_opt_guide.pdf This one describes both Bulldozer and Piledriver processors. Chapter 2 will given an overview of the Microarchitecture and Appendix B gives some additional details on which pipes are used for where. I haven't yet

I made a quick cross check with information in the SWOG (Software Optimization Guide). The port assignments look consistent. A few of the latency values are slightly different from the SWOG, e.g. WriteFRcp --> 6, WriteFSqrt --> 29 and WriteCvt* --> 4 seem to be suggested instead. Others are in better position to describe how to use llvm performance framework. --mev, Mike Vermeulen