[Bug tree-optimization/101617] New: a ? -1 : 1 -> (-(type)a) | 1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101617

            Bug ID: 101617
           Summary: a ? -1 : 1 -> (-(type)a) | 1
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
          Assignee: pinskia at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

I noticed this while looking through a few bug reports but it deals with <=>
too.
Take:
int f(int i)
{
  int t = i ? -1 : 0;
  return t | 1;
}

int f1(int i)
{
  return i ? -1 : 1;
}

------- CUT ------
These two should produce the same code generation.

Filing so I don't lose this while I am going through bug reports.