<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>
> > The new --enable-lto flag improves math computations.<br>
> Does this mean "gets more correct answers" or just "expected to take<br>
> less CPU time"? I think it's the latter. Either way, would be good<br>
> to adjust wording to accurately describe it.<br>
> <br>
<br>
Expected to take less cpu time. Darafei, please correct me if I misspoke.<br><br></blockquote><div><br></div><div>LTO = Link Time Optimization, allows the compiler to optimize and inline the code across the source code file boundaries. Removes function calls in loops and tightens some steps where functions are wrapper over wrapper over wrapper. With correct -march/-mcpu enables more vectorization than otherwise possible. Generally a very desired thing when you need performance (like in PostGIS). </div><div> </div></div></div>