<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 31, 2015 at 9:53 AM, Rafael Espíndola <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"><p dir="ltr">Having it off by default makes sense to me. We just need an easy way of enabling it from the clang driver.</p></blockquote><div>Not sure I follow? Generally LTO inputs are going to be "user provided" (in the sense that they're not produced immediately prior by the same process - or you'd have just produced a single Module in the first place, I would imagine) so changing the default still seems problematic in the sense of allowing 'unbounded' input without verification... <br> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">
<div class="gmail_quote">On Aug 29, 2015 6:04 PM, "Duncan P. N. Exon Smith via llvm-dev" <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">The verifier takes ~5% of link time when using LTO. I think we<br>
should add a `-disable-llvm-verifier` option to the LTO plugins, and<br>
change the clang driver to pass the option through in release builds.<br>
In asserts builds, the clang driver would not pass the option.<br>
<br>
This would match the way the driver passes -disable-llvm-verifier to<br>
-cc1.<br>
<br>
Everyone on board?<br>
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