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docs: document three NIR_ envvars

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Initially I was only interested on documenting NIR_PRINT, as today I
needed to check the code to find this envvar, that at the moment I
vaguely remembered that existed.

As we are here, though, let's just document all of them (assuming that
makes sense).

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Alejandro Piñeiro 2019-06-13 13:22:40 +02:00
parent 83829abe03
commit d317944c24
1 changed files with 17 additions and 0 deletions
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docs/envvars.html
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@ -210,6 +210,23 @@ sometimes be useful for debugging end-user issues.
</dl>
<h2>NIR passes enviroment variables</h2>
<p>
The following are only applicable for drivers that uses NIR, as they
modify the behaviour for the common NIR_PASS and NIR_PASS_V macros,
that wrap calls to NIR lowering/optimizations.
</p>
<dl>
<dt><code>NIR_PRINT</code></dt>
<dd>If defined, the resulting NIR shader will be printed out at each succesful NIR lowering/optimization call.</dd>
<dt><code>NIR_TEST_CLONE</code></dt>
<dd>If defined, cloning a NIR shader would be tested at each succesful NIR lowering/optimization call.</dd>
<dt><code>NIR_TEST_SERIALIZE</code></dt>
<dd>If defined, serialize and deserialize a NIR shader would be tested at each succesful NIR lowering/optimization call.</dd>
</dl>
<h2>Mesa Xlib driver environment variables</h2>
<p>