------- Comment #7 from tbptbp at gmail dot com 2006-03-12 21:35 ------- For clarification i should say that rt::mono::ray_t which uses vec_t etc, isn't a source of trouble, it's part of the single ray path where mostly scalar ops are used.
There's a symmetrical set of structures in rt::packet which deal with bundles of rays (ie 2x2) and uses packed vectors; that's what that unit is massaging. Some functions have a bunch of live 16 bytes aligned data on the stack and depending on how they get (force_)inlined g++ goes nuts an forgets about those constraints. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26650
