[Bug middle-end/77457] Print intended value of constants in assembly output

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77457

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |easyhack

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is an easy hack.
In assemble_real (in varasm.c), after the loop that calls assemble_integer,
print out the value of d (REAL_VALUE_TYPE).
Note GCC is smart and does not use the host floating point (I don't know if
clang/llvm does that or not).

Something like this to do the printing (comes from tree-pretty-print.c):
        if (REAL_VALUE_ISINF (d))
          pp_string (pp, REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
        else if (REAL_VALUE_ISNAN (d))
          pp_string (pp, " Nan");
        else
          {
            char string[100];
            real_to_decimal (string, &d, sizeof (string), 0, 1);
            pp_string (pp, string);
          }