<div dir="ltr">I am thinking as llvm gets more sophisticated outlining facilities where parts of function could be extracted into separate functions to help with inlining, vectorization, openmp, exceptions, etc, coroutines won't remain unique. From the debugging experience, it is still the original function, just split up into more than one for some only optimizer known reason :)</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 30, 2017 at 10:46 AM, David Blaikie <span dir="ltr"><<a href="mailto:dblaikie@gmail.com" target="_blank">dblaikie@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><br><div class="gmail_quote"><span class=""><div dir="ltr">On Tue, May 30, 2017 at 8:17 AM Adrian Prantl via Phabricator <<a href="mailto:reviews@reviews.llvm.org" target="_blank">reviews@reviews.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">aprantl accepted this revision.<br>
aprantl added a comment.<br>
This revision is now accepted and ready to land.<br>
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Thanks Keno, this appears to be a far better approach. The only question that remains is whether / how to update the linkage name of the cloned DISubprogram. But I don't think that this needs to be solved in this patch.<br></blockquote></span><div><br>*nod* Agreed.<br><br>Speculating rampantly: I wonder if it'd make sense to remove the linkage name from definitions and use the actual Function's linkage name (hmm, that doesn't work for inlining, though - so maybe it does have to be duplicated when the function is cloned - but could then have a verifier/invariant that it matches the Function if there is one). And then even allow the mangled name to differ between declaration and definition - and put an extra DW_AT_linkage_name on the definition if it's different from the declaration.<br><br>*shrug* Don't really know. The right answers may require thinking a fair bit about the coroutines debug info as a (perhaps somewhat unique) example of cloning, etc.<br> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<a href="https://reviews.llvm.org/D33655" rel="noreferrer" target="_blank">https://reviews.llvm.org/<wbr>D33655</a><br>
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