https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83816
Bug ID: 83816 Summary: [7 Regression] lto1: internal compiler error: compressed stream: data error Product: gcc Version: 7.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto Assignee: unassigned at gcc dot gnu.org Reporter: olegendo at gcc dot gnu.org CC: marxin at gcc dot gnu.org Target Milestone: --- This happens when building a bigger app on RX with LTO during linking: 0x7f619a lto_end_uncompression(lto_compression_stream*) ../../gcc7/gcc/lto-compress.c:293 0x7f43e8 lto_get_section_data(lto_file_decl_data*, lto_section_type, char const*, unsigned long*, bool) ../../gcc7/gcc/lto-section-in.c:164 0x561ebf lto_file_finalize ../../gcc7/gcc/lto/lto.c:2033 0x561ebf lto_create_files_from_ids ../../gcc7/gcc/lto/lto.c:2050 0x561ebf lto_file_read ../../gcc7/gcc/lto/lto.c:2091 0x561ebf read_cgraph_and_symbols ../../gcc7/gcc/lto/lto.c:2803 0x561ebf lto_main() ../../gcc7/gcc/lto/lto.c:3308 Not sure how to make a reproducer for that. I can't post the full source of the whole thing. Any advice on how to get info out of the compiler to solve this is appreciated.