[Bug tree-optimization/95423] New: Failure to optimize separated multiplications by x and square of x

[gabravier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95423

            Bug ID: 95423
           Summary: Failure to optimize separated multiplications by x and
                    square of x
           Product: gcc
           Version: 11.0
            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 a, int b, int x)
{
    return a * (x * x) + (b * x);
}

This can be optimized to `return (((a * x) + b) * x);`. LLVM does this
transformation, but GCC does not.