Grigory Zagorodnev wrote: > Mark Mitchell wrote: >> Excellent question; I should have asked for that as well. If 4.2 has >> gained on 4.1 in other respects, the 4.7% drop might represent a smaller >> regression relative to 4.1. >> > There is the 4.2 (r120817) vs. 4.1.2 release FP performance comparison > numbers. SPECfp_base2006 of gcc 4.2 has 19% performance gain over 4.1.2.
Thank you for the measurements. In that case, I think we have absolutely nothing to worry about for 4.2.0. Whether we deliver 19% SPECfp, 23% SPECfp, or 15% SPECfp improvements isn't so important; all of those numbers are a vast improvement over 4.1.x. Given that, I think we should just leave Danny's conservative changes in, and not worry. Thanks, -- Mark Mitchell CodeSourcery [EMAIL PROTECTED] (650) 331-3385 x713