<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=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jul 16, 2020, at 14:10, Hendrik Greving 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=""><span style="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; float: none; display: inline !important;" class="">I scanned other architectures, haven't found an example where somebody creates a chain out of thin air. Do you know any?</span></div></blockquote></div><br class=""><div class=""><br class=""></div><div class="">This is the case for all operations expanded as library calls. The call sequence involves a chain. One of the AMDGPU fdiv expansions also introduces a side effecting mode switch with a chain</div><div class=""><br class=""></div><div class="">-Matt</div></body></html>