<div dir="ltr">On 11 February 2013 23:15, Hal Finkel <span dir="ltr"><<a href="mailto:hfinkel@anl.gov" target="_blank">hfinkel@anl.gov</a>></span> wrote:<br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb"><div class="h5"><span style="color:rgb(34,34,34)">I agree with this. We should err on the side of safety even at the cost of larger IR. Relying on other passes to drop metadata on loop backedges, even if those passes are making (seemingly) completely-unrelated changes is asking for trouble; and in this case, trouble means miscompiles. Also, the changes to support propagating this metadata in existing passes are well defined: just grep for all places where TBAA metadata is handled. Some refactoring may be in order, but that is not a bad thing.</span></div>
</div></blockquote><div><br></div><div>+1</div><div><br></div><div style>--renato </div></div><br></div></div>