Dear all, I am trying to track down the following OpenJPEG regression on x86 (amd64 is fine): https://github.com/uclouvain/openjpeg/issues/571 In summary, if I compile OpenJPEG (git/master) using gcc (all gcc versions in debian: 4.8, 4.9 and 5.2 are affected) and try to compress a specific input file the generated J2K file is invalid. The bug is somewhat problematic within OpenJPEG because it make lossless compression: lossy ! I have not been able to reproduce this behavior using clang 3.5 (again debian/sid chroot 32bits), and I am not able to reproduce this behavior from an amd64 debian sid chroot. What is even more surprising is that I can no longer reproduce the behavior using `valgrind` from my 32bits chroot. I understand that my bug description is relatively small, but I am eager to report a more specific gcc issue. If anyone could help me narrow down this issue, I'd appreciate your comments. Please note that that I disabled any kind of optimizations by using (explicitly!) -O0. Thanks
