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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/67413] Complex NOP expanded to several
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Date: Wed, 15 Dec 2021 22:08:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D67413

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
             Blocks|                            |101926

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Maybe for:
  _1 =3D REALPART_EXPR <i_5(D)>;
  _2 =3D (long long unsigned intD.23) _1;
  _3 =3D IMAGPART_EXPR <i_5(D)>;
  _4 =3D (long long unsigned intD.23) _3;
  _6 =3D COMPLEX_EXPR <_2, _4>;

We should just create a VCE, I don't know if that is a good idea or not,
complex int in cases like this are not used that much anyways so ....


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101926
[Bug 101926] [meta-bug] struct/complex argument passing and return should be
improved=