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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109301] [13 Regression] ICE in format_helper,
 at real.h:233 since r13-1763
Date: Mon, 27 Mar 2023 19:23:30 +0000
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X-Bugzilla-Keywords: ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109301

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Tried -Ofast -mavx512f
#include <math.h>

void
foo (double *a, double *b)
{
  for (int i =3D 0; i < 1024; i++)
    a[i] =3D pow (a[i], b[i]);
}

void
bar (double *a)
{
  for (int i =3D 0; i < 1024; i++)
    a[i] =3D cbrt (sqrt (a[i]));
}

void
baz (double *a)
{
  for (int i =3D 0; i < 1024; i++)
    a[i] =3D cbrt (cbrt (a[i]));
}
but that doesn't trigger, it uses simd clones rather than internal function=
s.
Strangely, bar isn't vectorized while foo and baz are.=