https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64722
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Can you explain it? Usually when this function is called, pic_offset_table_rtx is NULL and your i386.h macro relies on that. When initializing default target during initialization it is NULL of course, and apparently even in target_reinit, when it is called with freshly cleared heap object for the non-default target. It is just when jit calls the initialization again without clearing all the variables... So I believe my proposed change is correct. In any case, perhaps jit shouldn't reinitialize everything all the time, at least if the compilation options don't change.