<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi,<div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 23, 2020, at 18:53, Riyaz Puthiyapurayil via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" class="">llvm-dev@lists.llvm.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 14pt; font-family: Consolas;" class="">I am analyzing a clang 10.0.0 vs gcc 7.3 performance difference that I can reproduce in the following test.<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 14pt;" class=""><o:p class=""> </o:p></span></div></div></div></blockquote><br class=""></div></div><div><br class=""></div><div>It looks like Clang 11.0/trunk optimizes the example quite differently (<a href="https://godbolt.org/z/P4Eo53" class="">https://godbolt.org/z/P4Eo53</a>). Does the same performance gap exist with Clang 11.0/trunk? If it does, it would probably be best to file a bug at <a href="https://bugs.llvm.org" class="">https://bugs.llvm.org</a>. That way it is easy to track.</div><div><br class=""></div><div>Cheers,</div><div>Florian</div></body></html>