<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Nov 14, 2013 at 3:00 PM, Pete Cooper <span dir="ltr"><<a href="mailto:peter_cooper@apple.com" target="_blank" class="cremed">peter_cooper@apple.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>This is probably most like #1, but i would either improve (or add a verbose option to) -debug-pass=Structure. Then just write a test which calls opt with some passes and uses FileCheck to verify the debug output.</div>
</blockquote><div><br></div><div>Yes, but see the problems with it that I brought up. Note that the new pass manager makes this significantly more complex because there isn't a linear series of passes (regardless of nesting).</div>
<div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br></div><div>This is nice as it means that if anyone ever wants to verify for performance reasons that a given test invalidates a very specific set of passes and never regresses from that set then they can use FileCheck for this.</div>
</blockquote><div><br></div><div>I don't think these are realistic or good tests in the new model... I'm not really sure what we're gaining from this at all. It sounds like a much worse case of what other people are complaining about with unittests?</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br></div><div>And it looks like debug-pass is available on release builds.</div></blockquote><div><br>
</div><div>... not always. Certainly, with the added complexity needed to check a system that uses active caching, I don't think we would want it in release builds. </div></div><br></div></div>