Much thanks for this, Jakub!
Greetings,
Daniel
On 01.10.2014 00:13, Jakub Wilk wrote:
Control: tags -1 + patch
* Jakub Wilk <[email protected]>, 2014-09-30, 21:23:
I debugged this a bit. The problem appears to be that for some (but
not all!) pixels with value 0, is_white() returns false. I don't
understand why, though.
I still don't know what's going on, but I noticed that the bug triggers
only when optimizations are enabled. This is why only the -dbg tests
failed, and tests for the normal interpreter succeeded. The simple
work-around is to use -Og (which enables optimizations that don't
interfere with debugging) instead of -O0. Please see the attached patch.
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