[Bug d/104911] [12 regression] Comparison failure in gcc/d/typesem.o etc.

[ibuclaw at gdcproject dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104911

Iain Buclaw <ibuclaw at gdcproject dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=104738

--- Comment #7 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
Ah, yes, of course.

libdruntime/core/stdc/stdint.d:
---
alias int8_t   = char;
alias uint8_t  = ubyte;

dmd/globals.d:
---
alias d_int8 = int8_t;
alias d_uns8 = uint8_t;

dmd/expression.d:
---
case Tint8:
    result = cast(d_int8)value;
    break;

case Tchar:
case Tuns8:
    result = cast(d_uns8)value;
    break;
---

D sees both char and ubyte as having the same signed-ness.