[Bug tree-optimization/126076] New: missing frange related optimization with bit_and for the comparison where one of the sides is used twice

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126076

            Bug ID: 126076
           Summary: missing frange related optimization with bit_and for
                    the comparison where one of the sides is used twice
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

Take:
```
// { dg-options "-O2 -fdump-tree-evrp -fno-thread-jumps" }

void use (double);
void link_error ();

void
foo (double x)
{
  double y,z;
  int t = x >= 0.5;
  int t1 = x <= 1.3;
  int t2 = x < 1.75;
  if (t & t1)
    {
      y = __builtin_sin (x);
      if (y < 0.45 || y > 0.97)
        link_error ();
      use (y);
    }
  if (t & t2)
    {
      z = __builtin_sin (x);
      if (z < 0.45 || z > 1.05)
        link_error ();
      use (z);
    }
}
```

This at `-O2 -fno-thread-jumps`, link_error should be optimized away. But
currently it is not.

This is reduced from gcc.dg/tree-ssa/range-sincos-2.c with -fno-trapping-math
used.