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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/98000] g++-10 internal compiler error: verify_cgraph_node
 failed
Date: Thu, 26 Nov 2020 10:17:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98000

--- Comment #4 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat pr98000.C
struct {
  template <typename T> T *operator()(T);
} hb_addressof;
template <typename, typename, typename... Ts> static int _hb_cmp_method(Ts.=
..)
{
  return 0;
}
template <typename V, typename K>
inline bool hb_bsearch_impl(K key, V, int compar(void *, void *)) {
  V p;
  int __trans_tmp_2 =3D *hb_addressof(key) =3D compar(&__trans_tmp_2, p);
  return false;
}
struct hb_array_t {
  int arrayZ;
};
struct hb_sorted_array_t : hb_array_t {
  void bsearch() {
    hb_bsearch_impl(bsearch_impl_x, &arrayZ, _hb_cmp_method<int, int>);
  }
  int bsearch_impl_x;
};
template <typename Returned> struct hb_lazy_loader_t {
  Returned *operator->();
};
namespace OT {
struct COLR;
}
struct hb_ot_face_t {
  hb_lazy_loader_t<OT::COLR> COLR;
};
struct {
  hb_ot_face_t table;
} hb_ot_color_glyph_get_layers_face;
namespace OT {
struct IntType {
  typedef int wide_type;
  operator wide_type();
};
struct UnsizedArrayOf;
struct OffsetTo {
  template <typename Base> friend UnsizedArrayOf operator+(Base, OffsetTo);
};
template <typename, bool> using LOffsetTo =3D OffsetTo;
template <typename Type> using LNNOffsetTo =3D LOffsetTo<Type, false>;
struct UnsizedArrayOf {
  void as_array(int);
};
struct SortedUnsizedArrayOf {
  hb_sorted_array_t __trans_tmp_4;
  void bsearch() { __trans_tmp_4.bsearch(); }
};
struct COLR {
  SortedUnsizedArrayOf __trans_tmp_3;
  int get_glyph_layers() {
    __trans_tmp_3.bsearch();
    int __trans_tmp_3 =3D numLayers;
    (this + layersZ).as_array(__trans_tmp_3);
  }
  LNNOffsetTo<int> layersZ;
  IntType numLayers;
};
} // namespace OT
void hb_ot_color_glyph_get_layers() {
  hb_ot_color_glyph_get_layers_face.table.COLR->get_glyph_layers();
}

fails with:
g++ pr98000.C -c -fchecking -Og

since r10-7306-g72b3bc895f023bf4=