[Bug middle-end/120803] inline assembly sign extends unsigned constraints

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120803

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Plus there is an easy workaround, just cast it to some wider type.  For -O0
purposes, better as constexpr as well.  So constexpr unsigned char value =
0x80; constexpr int value_promoted = var; asm("int %0" :: "i"(value_promoted));
in this case.