[Mesa-dev] [Bug 105755] Mesa freezes when the GLSL shader contains a `for` loop with an uninitialized `i` index/counter variable

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105755

--- Comment #17 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to iive from comment #16)
> With SSA and phi it is very easy to find when variable is used uninitialized
> and handle the case in deterministic way.

So initialize all those to MIN_INT? That'll work nicely.

That's the thing - there is no single "correct" thing to do in such situations.

for (float f; f > 0; f -= 1.0) { ... }

You really can't predict it. There's no real point in trying.

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