https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83403

luoxhu at gcc dot gnu.org changed:

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

--- Comment #7 from luoxhu at gcc dot gnu.org ---
int could pass but unsigned will fail to capture the refs independent, drafted
a patch to use the range info when checking the CONVERT expression on
PLUS/MINUS/MULT for wrapping overflow(unsigned).

https://gcc.gnu.org/pipermail/gcc-patches/2020-April/544684.html


(gdb) p debug_aff(&off1)
{
  type = sizetype
  offset = 8
  elements = {
    [0] = (long unsigned int) n_93 * 80,
    [1] = &C * 1
  }
}
$571 = void
(gdb) p debug_aff(&off2)
{
  type = sizetype
  offset = 0
  elements = {
    [0] = (long unsigned int) n_93 * 80,
    [1] = &C * 1
  }
}

Is this a reasonable solution, please?

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