[Bug bootstrap/105218] [12 regression] bootstrap build error in mpc in stage3

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105218

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
   Last reconfirmed|                            |2022-04-11
           Priority|P3                          |P1
   Target Milestone|---                         |12.0

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase for -O2 -g:
int a, c;

void
foo (void)
{
  int b;
  if (a)
    b = c;
  if (a)
    b = b == 2 ? b == 2 : b;
  while (b)
    ;
}