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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/99751] [11 Regression] wrong code at -O1
Date: Wed, 24 Mar 2021 12:46:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99751

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
  parm 0 flags: nodirectescape
void e (int * d)
{
  int * * c.0_1;
  int * _2;

  <bb 2> :
  c.0_1 =3D c;
  _2 =3D b (d_4(D));
  *c.0_1 =3D _2;
  return;

is wrong, it does escape through the *c store.  I suppose b (d) is "wrong"
somehow, the escape through the return is not mentioned:

  parm 0 flags: direct noclobber noescape nodirectescape
int * b (int * d)
{
  <bb 2> :
  return d_1(D);=