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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement a NIR -> vec4 pass"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89580#c13">Comment # 13</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement a NIR -> vec4 pass"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89580">bug 89580</a>
from <span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span></b>
<pre>Yeah, that definitely looks bizarre - but I think it's expected.
Fixed-function vertex programs and ARB programs go through prog_to_nir.c (the
Mesa IR -> NIR translator), which generates load_uniform intrinsics directly,
instead of creating uniform variables then having nir_lower_io lower variable
access to intrinsics. It just sets nir->num_uniforms directly, and brw_nir.c
skips the part that inspects uniform variables when dealing with FF/ARB
programs.
/* Set the number of uniforms */
shader->num_uniforms = 4 * c->prog->Parameters->NumParameters;
Sorry for the confusion :)</pre>
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