[Bug rtl-optimization/102842] [10 Regression] ICE in cselib_record_set at -O2 or greater

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102842

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
And reduced test-case looks like this:

struct Plane {
  using T = float;
  T *Row();
};
using ImageF = Plane;
long long Mirror_x;
struct EnsurePaddingInPlaceRowByRow {
  void Process() {
    switch (strategy_) {
    case kSlow:
      float *row = img_.Row();
      long long xsize = x1_;
      while (Mirror_x >= xsize)
        if (Mirror_x)
          Mirror_x = 2 * xsize - 1;
      *row = Mirror_x;
    }
  }
  ImageF img_;
  unsigned x1_;
  enum { kSlow } strategy_;
};
void FinalizeImageRect() {
  EnsurePaddingInPlaceRowByRow ensure_padding;
  ensure_padding.Process();
}