http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60965
Harald van Dijk <harald at gigawatt dot nl> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |harald at gigawatt dot nl --- Comment #10 from Harald van Dijk <harald at gigawatt dot nl> --- (In reply to Jan Hubicka from comment #4) > Mine, probably 4.9 regression, too. It is, and Jonathan Wakely's earlier reduction exposes it on 4.9 too. (In reply to Jan Hubicka from comment #6) > Can you, please, double check that it fixes the Java issues? With 4.9.0, for me, IcedTea reliably hangs during the build process. I hadn't investigated the problem at all, but with 4.9.0 plus your patch, it builds successfully. What I had looked into was a segmentation fault in Qt (https://bugreports.qt-project.org/browse/QTBUG-38733) and Chromium, both using WebKit, also because of this. Chromium is still building, but for Qt, I can confirm it is also fixed by your patch. (In reply to Jason Merrill from comment #9) > As far as I know people always use char arrays for placement new anyway; at > least all the examples I've ever seen do. Or a structure containing (possibly indirectly) a character array as its first member, such as aligned_storage. But as long as a pointer to such a structure is indistinguishable from a pointer to the contained character array, that should not be a problem.