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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Spurious “used uninitialized” warning"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103895">103895</a>
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<th>Summary</th>
<td>Spurious “used uninitialized” warning
</td>
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<th>Product</th>
<td>Mesa
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<th>Version</th>
<td>17.2
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/DRI/i965
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>sgunderson@bigfoot.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<p>
<div>
<pre>Hi,
When compiling this GLSL compute shader:
===
#version 430
layout(local_size_x = 1) in;
uniform restrict writeonly image2D outbuf;
vec4 CS_OUTPUT_VAL;
vec4 func() {
return CS_OUTPUT_VAL;
}
void main()
{
CS_OUTPUT_VAL = vec4(0.0, 0.0, 0.0, 1.0);
vec4 val = func();
imageStore(outbuf, ivec2(0, 0), val);
}
===
I get this warning:
Shader compile log: 0:9(9): warning: `CS_OUTPUT_VAL' used uninitialized
If I move func() below main() (with a forward declaration), the warning goes
away.</pre>
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