<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Excellent. Thanks! <div><br><div><div>On Jun 14, 2013, at 7:00 AM, Renato Golin <<a href="mailto:renato.golin@linaro.org">renato.golin@linaro.org</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div dir="ltr">Hi Nadav,<div><br></div><div>No noticeable difference between "-Os" and "-Os -fvectorize" in code size or compilation times in my tests, and only minimal performance improvements (small enough to be ignored).</div><div><br></div><div>cheers,</div><div>--renato</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 14 June 2013 09:29, Renato Golin<span class="Apple-converted-space"> </span><span dir="ltr"><<a href="mailto:renato.golin@linaro.org" target="_blank">renato.golin@linaro.org</a>></span><span class="Apple-converted-space"> </span>wrote:<br><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;"><div dir="ltr"><div class="im">On 14 June 2013 05:37, Nadav Rotem<span class="Apple-converted-space"> </span><span dir="ltr"><<a href="mailto:nrotem@apple.com" target="_blank">nrotem@apple.com</a>></span><span class="Apple-converted-space"> </span>wrote:<br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex;">Last week I wrote llvm-dev and presented data that shows how enabling the vectorizer on -Os can improve the performance of many workloads and that it has negligible effects on code size. I also added a command line switch to make it easier for people to benchmark the vectorizer using -Os directly from clang without changing LLVM. Has anyone done any benchmarks on -Os + vectorization ?<br></blockquote><div></div></div><br></div></div><div class="gmail_extra">Hi Nadav,</div><div class="gmail_extra"><br></div><div class="gmail_extra">I haven't, sorry. I'll run some tests on my Chromebook and will let you know.</div><div class="gmail_extra"><br></div><div class="gmail_extra">cheers,</div><div class="gmail_extra">--renato</div></div></blockquote></div></div></div></blockquote></div><br></div></body></html>