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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GLSL IR copy propagates loads of SSBOs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106774#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GLSL IR copy propagates loads of SSBOs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106774">bug 106774</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>(In reply to Ian Romanick from <a href="show_bug.cgi?id=106774#c3">comment #3</a>)
<span class="quote">> (In reply to Ilia Mirkin from <a href="show_bug.cgi?id=106774#c2">comment #2</a>)
> > Are you sure that's illegal? I'd imagine that you'd need that variable to be
> > marked as coherent, or to introduce a compiler barrier somehow.
>
> Legality isn't really relevant. The shader source contains one instance of
> a very, very expensive operation, and we decide to do it four times. That's
> unacceptable.</span >
Oh wait. I totally misread. Copy propagate. And it does so ACROSS an atomic, no
less! That's definitely broken</pre>
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