<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Joerg,<div class=""><br class=""></div><div class="">This should be fixed by r<span style="font-family: Menlo; font-size: 11px;" class="">217926.</span><div><br class=""></div><div>Thanks again for the test case.</div><div>-Quentin<br class=""><blockquote type="cite" class=""><div class="">On Sep 16, 2014, at 1:45 PM, Quentin Colombet <<a href="mailto:qcolombet@apple.com" class="">qcolombet@apple.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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;" class=""><br class="Apple-interchange-newline">On Sep 16, 2014, at 1:41 PM, Quentin Colombet <<a href="mailto:qcolombet@apple.com" class="">qcolombet@apple.com</a>> wrote:<br class=""><br class=""><br class=""><blockquote type="cite" class="">On Sep 16, 2014, at 12:28 PM, Joerg Sonnenberger <<a href="mailto:joerg@britannica.bec.de" class="">joerg@britannica.bec.de</a>> wrote:<br class=""><br class="">On Thu, Sep 11, 2014 at 09:22:14PM -0000, Quentin Colombet wrote:<br class=""><blockquote type="cite" class="">Author: qcolombet<br class="">Date: Thu Sep 11 16:22:14 2014<br class="">New Revision: 217629<br class=""><br class="">URL: <a href="http://llvm.org/viewvc/llvm-project?rev=217629&view=rev" class="">http://llvm.org/viewvc/llvm-project?rev=217629&view=rev</a><br class="">Log:<br class="">[CodeGenPrepare] Teach the addressing mode matcher how to promote zext.<br class="">I.e., teach it about 'sext (zext a to ty) to ty2' => zext a to ty2.<br class=""></blockquote><br class="">More fun, again, build with -O2.<br class=""></blockquote><br class="">Nice!<br class="">This one is funny, we have in the IR 'zext i8 undef to i32’, which when it is promoted gives a constant 0 instead of ‘zext i8 undef to i64’ (because of how the IRBuilder works).<br class=""></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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; float: none; display: inline !important;" class="">And the problem is that we expect an instruction, not a value!</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 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;" class="">I do not know why it is valid to have 'zext i8 undef to i32’ and not 'zext i8 undef to i64’… It looks to me we shouldn’t have ''zext i8 undef to i32’ in the first place.<br class=""><br class="">Looking.<br class=""><br class="">-Quentin<br class=""><br class=""><blockquote type="cite" class=""><br class="">Joerg<br class=""><cvt-double-fd672c.c>_______________________________________________<br class="">llvm-commits mailing list<br class=""><a href="mailto:llvm-commits@cs.uiuc.edu" class="">llvm-commits@cs.uiuc.edu</a><br class=""><a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits" class="">http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits</a><br class=""></blockquote><br class=""></blockquote><br style="font-family: Helvetica; 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