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// { dg-do link }

// { dg-xfail-if "" { "powerpc-ibm-aix*" } { "*" } { "" } }

// { dg-require-alias "" }

// { dg-options "-O2 -fno-common" }

// Copyright 2005 Free Software Foundation, Inc.

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

// PR middle-end/24295

// The unit-at-a-time call graph code used to fail to emit variables

// without external linkage that were only used indirectly, through

// aliases.  Although the PR above is about #pragma weak-introduced

// aliases, the underlying machinery is the same.

#ifndef ATTRIBUTE_USED

# define ATTRIBUTE_USED __attribute__((used))

#endif

static int lv1;

extern int Av1a __attribute__((alias ("lv1")));

int *pv1a = &Av1a;

static int lv2;

extern int Av2a __attribute__((alias ("lv2")));

int *pv2a = &lv2;

static int lv3;

extern int Av3a __attribute__((alias ("lv3")));

static int *pv3a ATTRIBUTE_USED = &Av3a;

static int lv4;

extern int Av4a __attribute__((alias ("lv4")));

static int *pv4a = &Av4a;

typedef void ftype(void);

static void lf1(void) {}

extern ftype Af1a __attribute__((alias ("lf1")));

ftype *pf1a = &Af1a;

static void lf2(void) {}

extern ftype Af2a __attribute__((alias ("lf2")));

ftype *pf2a = &Af2a;

static void lf3(void) {}

extern ftype Af3a __attribute__((alias ("lf3")));

static ftype *pf3a ATTRIBUTE_USED = &Af3a;

static void lf4(void) {}

extern ftype Af4a __attribute__((alias ("lf4")));

static ftype *pf4a = &Af4a;

main() {

  asm volatile ("" : : "m" (pv4a), "m" (pf4a));

}