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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/97292] [11 Regression] dealII from SPECCPU 2006 no longer
 terminates after g:c34db4b6f8a5d80367c709309f9b00cb32630054
Date: Thu, 08 Oct 2020 17:36:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97292

--- Comment #14 from Jan Hubicka <hubicka at gcc dot gnu.org> ---

So this really seems that the alias set 6 is not conflicting with  alias se=
ts
11 or 13. active_cell is
struct active_cell_iterator active_cell;
and the code around seems SRA injected
  MEM[(struct TriaRawIterator *)&active_cell] =3D{v} {CLOBBER};=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  MEM <struct DoFHandler *> [(struct DoFCellAccessor *)&active_cell] =3D
cell$dof_handler_253;
  MEM <int> [(struct DoFCellAccessor *)&active_cell + 8B] =3D
cell$8$present_level_242;
  MEM <int> [(struct DoFCellAccessor *)&active_cell + 12B] =3D
cell$8$present_index_245;
  MEM <const struct Triangulation *> [(struct DoFCellAccessor *)&active_cel=
l +
16B] =3D cell$8$tria_244;
  operator++ (&active_cell);=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20
  MEM[(struct TriaRawIterator *)&D.17355].accessor =3D MEM[(const struct
TriaRawIterator &)&active_cell].accessor;

and we CSE is acrss the call

Honza=