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From: "iii at linux dot ibm.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/97866] [11 Regression] bootstrap error in libasan
 building a s390x-linux-gnu cross compiler
Date: Tue, 17 Nov 2020 20:06:50 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97866

--- Comment #2 from Ilya Leoshkevich <iii at linux dot ibm.com> ---
Never mind, I managed to reproduce it now:

ubuntu-focal-amd64$ git rev-parse --short HEAD
77f67db2a47

ubuntu-focal-amd64$ ../configure --target=3Ds390x-linux-gnu --exec-prefix=
=3D/usr
--disable-bootstrap --disable-multilib --enable-languages=3Dc,c++

ubuntu-focal-amd64$ cat test.cpp
typedef long a;
typedef void (*b)(a, a, void *);
class c {
  unsigned char *m_fn1();
  char d(a);
  a e(a);
  void f();
};
b g;
void *h;
void c::f() {
  for (a j; j < 6; j++) {
    unsigned char *flags =3D m_fn1();
    for (a i, k; i < k; i++) {
      if (flags)
        continue;
      int *ff =3D reinterpret_cast<int *>(d(i));
      g(a(ff), e(j), h);
    }
  }
}

ubuntu-focal-amd64$ gcc/xgcc -Bgcc -std=3Dgnu++14 -O2 -c test.cpp
during RTL pass: reload
test.cpp: In member function =E2=80=98void c::f()=E2=80=99:
test.cpp:21:1: internal compiler error: in get_insn_freq, at lra.c:1554=