<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On Jan 22, 2015, at 3:29 PM, Chris Sears <<a href="mailto:chris.sears@gmail.com">chris.sears@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div class="gmail_extra">The status quo is:</div><div class="gmail_extra"><br></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div class="gmail_extra">a) 40b REX+BT instruction for the 64b case</div><div class="gmail_extra">b) 48b TEST for the 32b case</div><div class="gmail_extra">c) unless it's small TEST</div></blockquote><br><div>You are currently paying a 16b penalty for TEST vs BT in the 32b case.</div><div>That may be worth testing the -Os flag.</div></div></blockquote><div><br></div><div>Seems like a must do for -Oz at least.</div><div><br></div><div>Cheers,</div><div>Q. </div><br><blockquote type="cite">
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