[Bug tree-optimization/94899] New: Failure to optimize out add before compare

[gabravier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94899

            Bug ID: 94899
           Summary: Failure to optimize out add before compare
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gabravier at gmail dot com
  Target Milestone: ---

int f(int x, int y)
{
    return x + 0x80000000 < y + 0x80000000;
}

This can be optimized to `return x < y`. LLVM does this transformation, but GCC
does not.