[Bug lto/41565] using -m32 with LTO causes an ICE when the object files were compiled with 64bit

[Bug lto/41565] using -m32 with LTO causes an ICE when the object files were compiled with 64bit

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41565

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |lto
            Summary|-m32 causes an ICE when the |using -m32 with LTO causes
                   |object files were compiled  |an ICE when the object
                   |with 64bit                  |files were compiled with
                   |                            |64bit
                 CC|                            |egallager at gcc dot gnu.org

--- Comment #15 from Eric Gallager <egallager at gcc dot gnu.org> ---
retitling to make a bit clearer

[Bug lto/41565] using -m32 with LTO causes an ICE when the object files were compiled with 64bit

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41565

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2017-08-07 00:00:00         |2021-12-25

--- Comment #16 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Still ICEs today on x86_64:
apinski@xeond:~/src$ ~/upstream-gcc/bin/gcc -m64 -c -flto t55.c
apinski@xeond:~/src$ ~/upstream-gcc/bin/gcc -m32 -flto t55.o
lto1: internal compiler error: in operator[], at vec.h:889
0x70f75e vec<edge_def*, va_gc, vl_embed>::operator[](unsigned int)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/vec.h:889
0x70f8a4 vec<tree_node*, va_heap, vl_embed>::operator[](unsigned int)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto-streamer-in.c:1832
0x70f8a4 vec<tree_node*, va_heap, vl_ptr>::operator[](unsigned int)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/vec.h:1495
0x70f8a4 streamer_tree_cache_get_tree
        /home/apinski/src/upstream-gcc-git/gcc/gcc/tree-streamer.h:96
0x70f8a4 stream_read_tree_ref(lto_input_block*, data_in*)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto-streamer-in.c:1819
0xff6c2d lto_input_ts_decl_minimal_tree_pointers
        /home/apinski/src/upstream-gcc-git/gcc/gcc/tree-streamer-in.c:710
0xff6c2d streamer_read_tree_body(lto_input_block*, data_in*, tree_node*)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/tree-streamer-in.c:1061
0xc38a79 lto_read_tree_1
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto-streamer-in.c:1700
0xc39437 lto_read_tree
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto-streamer-in.c:1741
0xc39437 lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto-streamer-in.c:1882
0x8ad04e lto_read_decls
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto-common.c:1957
0x8adfef lto_file_finalize
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto-common.c:2269
0x8adfef lto_create_files_from_ids
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto-common.c:2279
0x8adfef lto_file_read
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto-common.c:2334
0x8adfef read_cgraph_and_symbols(unsigned int, char const**)
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto-common.c:2785
0x8961f2 lto_main()
        /home/apinski/src/upstream-gcc-git/gcc/gcc/lto/lto.c:625
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
lto-wrapper: fatal error: /home/apinski/upstream-gcc/bin/gcc returned 1 exit
status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status