https://bugs.freedesktop.org/show_bug.cgi?id=83785
Priority: medium
Bug ID: 83785
Assignee: [email protected]
Summary: Shader branches excluded by uniform values are not
optimized out
Severity: major
Classification: Unclassified
OS: All
Reporter: [email protected]
Hardware: x86-64 (AMD64)
Status: NEW
Version: 10.2
Component: Mesa core
Product: Mesa
In investigating bug 83570 I noticed that for shader code such as
uniform bool u_debug;
if(!u_debug)
{
//do some stuff
}
else
{
//do some other stuff
}
both the if and else are executing. Seems like a pretty trivial
optimization...is there a reason it doesn't optimize out the excluded branch,
or is it just "yet to be done"?
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