<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 All,<div class=""><br class=""></div><div class="">For a custom backend I’m developing, where jumps are not particularly expensive, I want to reduce the <span style="font-family: Monaco; font-size: 11px; background-color: rgb(255, 255, 255);" class="">phi-node-folding-threshold </span>attribute value from the default 2 to just 1, as it produces better code in my case.</div><div class=""><br class=""></div><div class="">I first tried to set the attribute as a clang command line option, but it does not seem to be available. ( I tried “clang -phi-node-folding-threshold=1” but this returns an “unknown argument” error) </div><div class=""><br class=""></div><div class="">However, it works as intended if I replace the default value by hard coding in it in SimplifyCFG.cpp and recompiling clang</div><div class=""><br class=""></div><div class=""> My question is, Is there a way to set that attribute to a different value for a specific target?. Or at least to set it on the command line?</div><div class=""><br class=""></div><div class="">Thanks in advance</div><div class=""><br class=""></div><div class="">John</div></body></html>