https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577
--- Comment #141 from dave.anglin at bell dot net --- On 2020-02-07 8:04 p.m., peter.bisroev at groundlabs dot com wrote: > Program received signal SIGSEGV, Segmentation fault > si_code: 1 - SEGV_MAPERR - Address not mapped to object. > 0x79e7a40 in <unknown_procedure> () > (gdb) bt > #0 0x79e7a40 in <unknown_procedure> () > warning: Attempting to unwind past bad PC 0x79e7a40 > #1 0x6c81c20 in > vector_builder<tree_node*,tree_vector_builder>::try_npatterns(unsigned > int)+0x2a0 () I'm not very familiar with selftest but it looks like the code has branched to a bad location in frame 1. Disassemble code around 0x6c81c20. Put a break before bad branch and try to figure out what's going wrong. Something is miscompiled. Probably it's in vector_builder.
