Marc-Hendrik Bremer wrote:
[...]
> 
> They say, it produces wrong code if you use -ipo (inter procedural
> optimization). This way, some subroutines are not called as procedures
> (call/return), but are inserted directly in the code. This fails in some
> cases, as in Pov. And even if it might be faster in some cases, it should
> be avoided, esp. as the compiler produces fast code even without that
> switch.

it does not fail every time you render scenes with Intel-compiled POVRay. 
in some pictures it is possible that scenes are wrong-colored.

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