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// { dg-do run { target { *-*-darwin* } } }

// { dg-require-weak "" }

// { dg-options "-O2" }

// { dg-options "-O2 -mmacosx-version-min=10.2" { target { powerpc-*-darwin* } } }

// { dg-additional-sources "attr-weakref-1a.c attr-weakref-1b.c" }

// Copyright 2005 Free Software Foundation, Inc.

// Contributed by Alexandre Oliva <aoliva@redhat.com>

// Torture test for weakrefs.  The first letter of an identifier

// indicates whether/how it is defined; the second letter indicates

// whether it is part of a variable or function test; the number that

// follows is a test counter, and a letter that may follow enables

// multiple identifiers within the same test (e.g., multiple weakrefs

// or pointers to the same identifier).

// Identifiers starting with W are weakrefs; those with p are

// pointers; those with g are global definitions; those with l are

// local definitions; those with w are expected to be weak undefined

// in the symbol table; those with u are expected to be marked as

// non-weak undefined in the symbol table.

#include <stdlib.h>

#define USED __attribute__((used))

typedef int vtype;

extern vtype wv1;

static vtype Wv1a __attribute__((weakref ("wv1")));

static vtype *pv1a USED = &Wv1a;

vtype gv2;

static vtype Wv2a __attribute__((weakref ("gv2")));

static vtype *pv2a USED = &Wv2a;

static vtype lv3;

static vtype Wv3a __attribute__((weakref ("lv3")));

static vtype *pv3a USED = &Wv3a;

extern vtype uv4;

static vtype Wv4a __attribute__((weakref ("uv4")));

static vtype *pv4a USED = &Wv4a;

static vtype *pv4 USED = &uv4;

static vtype Wv5a __attribute__((weakref ("uv5")));

static vtype *pv5a USED = &Wv5a;

extern vtype uv5;

static vtype *pv5 USED = &uv5;

static vtype Wv6a __attribute__((weakref ("wv6")));

static vtype *pv6a USED = &Wv6a;

extern vtype wv6;

static vtype Wv7a __attribute__((weakref ("uv7")));

static vtype* USED fv7 (void) {

  return &Wv7a;

}

extern vtype uv7;

static vtype* USED fv7a (void) {

  return &uv7;

}

extern vtype uv8;

static vtype* USED fv8a (void) {

  return &uv8;

}

static vtype Wv8a __attribute__((weakref ("uv8")));

static vtype* USED fv8 (void) {

  return &Wv8a;

}

extern vtype wv9 __attribute__((weak));

static vtype Wv9a __attribute__((weakref ("wv9")));

static vtype *pv9a USED = &Wv9a;

static vtype Wv10a __attribute__((weakref ("Wv10b")));

static vtype Wv10b __attribute__((weakref ("Wv10c")));

static vtype Wv10c __attribute__((weakref ("Wv10d")));

static vtype Wv10d __attribute__((weakref ("wv10")));

extern vtype wv10;

extern vtype wv11;

static vtype Wv11d __attribute__((weakref ("wv11")));

static vtype Wv11c __attribute__((weakref ("Wv11d")));

static vtype Wv11b __attribute__((weakref ("Wv11c")));

static vtype Wv11a __attribute__((weakref ("Wv11b")));

static vtype Wv12 __attribute__((weakref ("wv12")));

extern vtype wv12 __attribute__((weak));

static vtype Wv13 __attribute__((weakref ("wv13")));

extern vtype wv13 __attribute__((weak));

static vtype Wv14a __attribute__((weakref ("wv14")));

static vtype Wv14b __attribute__((weakref ("wv14")));

extern vtype wv14 __attribute__((weak));

typedef void ftype(void);

extern ftype wf1;

static ftype Wf1a __attribute__((weakref ("wf1")));

static ftype *pf1a USED = &Wf1a;

static ftype Wf1c __attribute__((weakref));

extern ftype Wf1c __attribute__((alias ("wf1")));

static ftype *pf1c USED = &Wf1c;

void gf2(void) {}

static ftype Wf2a __attribute__((weakref ("gf2")));

static ftype *pf2a USED = &Wf2a;

static void lf3(void) {}

static ftype Wf3a __attribute__((weakref ("lf3")));

static ftype *pf3a USED = &Wf3a;

extern ftype uf4;

static ftype Wf4a __attribute__((weakref ("uf4")));

static ftype *pf4a USED = &Wf4a;

static ftype *pf4 USED = &uf4;

static ftype Wf5a __attribute__((weakref ("uf5")));

static ftype *pf5a USED = &Wf5a;

extern ftype uf5;

static ftype *pf5 USED = &uf5;

static ftype Wf6a __attribute__((weakref ("wf6")));

static ftype *pf6a USED = &Wf6a;

extern ftype wf6;

static ftype Wf7a __attribute__((weakref ("uf7")));

static ftype* USED ff7 (void) {

  return &Wf7a;

}

extern ftype uf7;

static ftype* USED ff7a (void) {

  return &uf7;

}

extern ftype uf8;

static ftype* USED ff8a (void) {

  return &uf8;

}

static ftype Wf8a __attribute__((weakref ("uf8")));

static ftype* USED ff8 (void) {

  return &Wf8a;

}

extern ftype wf9 __attribute__((weak));

static ftype Wf9a __attribute__((weakref ("wf9")));

static ftype *pf9a USED = &Wf9a;

static ftype Wf10a __attribute__((weakref ("Wf10b")));

static ftype Wf10b __attribute__((weakref ("Wf10c")));

static ftype Wf10c __attribute__((weakref ("Wf10d")));

static ftype Wf10d __attribute__((weakref ("wf10")));

extern ftype wf10;

extern ftype wf11;

static ftype Wf11d __attribute__((weakref ("wf11")));

static ftype Wf11c __attribute__((weakref ("Wf11d")));

static ftype Wf11b __attribute__((weakref ("Wf11c")));

static ftype Wf11a __attribute__((weakref ("Wf11b")));

static ftype Wf12 __attribute__((weakref ("wf12")));

extern ftype wf12 __attribute__((weak));

static ftype Wf13 __attribute__((weakref ("wf13")));

extern ftype wf13 __attribute__((weak));

static ftype Wf14a __attribute__((weakref ("wf14")));

static ftype Wf14b __attribute__((weakref ("wf14")));

extern ftype wf14 __attribute__((weak));

#ifndef __APPLE__

#define chk(p) do { if (!p) abort (); } while (0)

#else

#define chk(p) /* */

#endif

int main () {

  chk (!pv1a);

  chk (pv2a);

  chk (pv3a);

  chk (pv4a);

  chk (pv4);

  chk (pv5a);

  chk (pv5);

  chk (!pv6a);

  chk (fv7 ());

  chk (fv7a ());

  chk (fv8 ());

  chk (fv8a ());

  chk (!pv9a);

  chk (!&Wv10a);

  chk (!&Wv11a);

  chk (!&Wv12);

  chk (!&wv12);

  chk (!&wv13);

  chk (!&Wv14a);

  chk (!pf1a);

  chk (!pf1c);

  chk (pf2a);

  chk (pf3a);

  chk (pf4a);

  chk (pf4);

  chk (pf5a);

  chk (pf5);

  chk (!pf6a);

  chk (ff7 ());

  chk (ff7a ());

  chk (ff8 ());

  chk (ff8a ());

  chk (!pf9a);

  chk (!&Wf10a);

  chk (!&Wf11a);

  chk (!&Wf12);

  chk (!&wf12);

  chk (!&wf13);

  chk (!&Wf14a);

  exit (0);

}