<br><br><div class="gmail_quote"><div dir="ltr">On Mon, Apr 17, 2017, 3:08 AM Kavon Farvardin <<a href="mailto:kavon@farvard.in">kavon@farvard.in</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>By "dropped" do you mean that the metadata is not propagated/preserved during the transformation?</div></div></blockquote></div><div><br></div><div>Yes</div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br></div><div>If anyone knows which passes in particular are doing this, I would be happy to try to come up with a patch!</div><div></div></div></blockquote></div><div><br></div><div>+Ben</div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br></div><div>~kavon</div></div><div style="word-wrap:break-word"><br><div><blockquote type="cite"><div>On Apr 14, 2017, at 3:52 PM, Daniel Berlin <<a href="mailto:dberlin@dberlin.org" target="_blank">dberlin@dberlin.org</a>> wrote:</div><br class="m_7635014795592311181Apple-interchange-newline"><div><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Apr 14, 2017 at 6:12 AM, Hal Finkel via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><br>
On 04/14/2017 08:03 AM, Kavon Farvardin via llvm-dev wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Thanks for the explanation Sanjoy!<br>
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Another question I have is: are there are any passes that invalidate or make the TBAA analysis information less precise?<br>
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Some transformation drop TBAA information when they might invalidate it, but it should be preserved in most places.<span><br>
<br></span></blockquote><div><br></div><div>FWIW, I believe some folks at Google in a different group have come to the conclusion it is dropped in about 20-30% of cases.</div><div>(I said "file bugs") </div><div><br></div></div></div></div>
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