[Bug debug/78587] dwarf2out.c:1517:45: runtime error: negation of -9223372036854775808 cannot be represented in type 'long int [4]'; cast to an unsigned type to negate this value to itself

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78587

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40202
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40202&action=edit
gcc7-pr78587.patch

Untested fix for the first issue, we even generate better debug info (and
conceptually more correct):
-       .value  0x10    # Location expression size
+       .value  0xe     # Location expression size
        .byte   0xf3    # DW_OP_GNU_entry_value
        .uleb128 0x1
        .byte   0x55    # DW_OP_reg5
-       .byte   0x11    # DW_OP_consts
-       .sleb128 -9223372036854775808
+       .byte   0xe     # DW_OP_const8u
+       .quad   0x8000000000000000
        .byte   0x1c    # DW_OP_minus
        .byte   0x9f    # DW_OP_stack_value

I couldn't reproduce the other issues.