https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97172
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> --- I'm not at all familiar with this part of GCC so I'm not sure what needs to be done here. It seems to me that the streamer is missing support for certain trees under some conditions. It knows how to stream SSA_NAMEs but apparently isn't prepared for them in attributes -- I put more detail in bug 97133 comment #4.
