https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99447
--- Comment #15 from Jan Hubicka <hubicka at gcc dot gnu.org> --- I also tried to reproduce this locally w/o luck. Looking at the backtrace in detail, there is no DEF_STMT involved. It walks from dwarf dies, to RTL constant pool address that points to tree which has abstract origin that points to symtab node which points to callgraph edge which points to dead basic block. The pointer from cgraph node to edge that should be removed. I can add code to clear pointers SSA_NAME->def_stmt bit there is no def stmt in the backtrace, so it would not help here. W/o reproducer it seem hard to tell what is/was real cause of this issue... Honza
