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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/115138] [15 Regression] Bootstrap
 compare-debug fail after r15-580-gf3e5f4c58591f5
Date: Thu, 23 May 2024 09:24:55 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 15.0
X-Bugzilla-Keywords: build, wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115138

--- Comment #22 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes!  Testing a fix for

int foo (int) {}
int bar (int) {}

typedef int (*pred)(int);

int x, y;
pred A () { if (x) return foo; else return bar; }
pred B () { if (y) return foo; else return bar; }
int __attribute__((noipa)) baz()
{
  pred a =3D A();
  pred b =3D B();
  if (a !=3D b)
    return 42;
  return 0;
}

int main()
{
  if (baz () !=3D 0)
    __builtin_abort ();
  y =3D 1;
  if (baz () !=3D 42)
    __builtin_abort ();
  return 0;
}=