https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90441
--- Comment #14 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Iain Sandoe from comment #13) > (In reply to Iain Sandoe from comment #12) current trunk (271111), manual regeneration of the firmware.elf.ltrans0.ltrans.o -> (it's kinda frustrating that one can't see the link line, more tweaks are still needed to help debug LTO - but putting -Wl,--verbose indicates that the right number of files are presented to, and load correctly) iains@gcc122:~/gcc-trunk/C$ ../../llvm-710-build/bin/llvm-dwarfdump --verify firmware.elf.ltrans0.ltrans.o Verifying firmware.elf.ltrans0.ltrans.o: file format ELF64-x86-64 Verifying .debug_abbrev... Verifying .debug_info Unit Header Chain... Verifying .debug_info references... error: invalid DIE reference 0x0000001d. Offset is in between DIEs: 0x00000038: DW_TAG_subprogram DW_AT_abstract_origin (0x000000000000001d) DW_AT_low_pc (0x0000000000000000) DW_AT_high_pc (0x0000000000000000) DW_AT_frame_base (DW_OP_call_frame_cfa) DW_AT_GNU_all_call_sites (true) error: invalid DIE reference 0x0000003b. Offset is in between DIEs: 0x0000004f: DW_TAG_variable DW_AT_abstract_origin (0x000000000000003b) DW_AT_location (DW_OP_addr 0x0) Errors detected.