Subversion Repositories openrisc_2011-10-31

/* Copyright (C) 2010 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* The original program corresponding to pieces.S.

   This came from https://bugzilla.redhat.com/show_bug.cgi?id=589467

   Note that it is not ever compiled, pieces.S is used instead.

   However, it is used to extract breakpoint line numbers.  */

struct A { int i; int j; };

struct B { int i : 12; int j : 12; int : 4; };

struct C { int i; int j; int q; };

__attribute__((noinline)) void

bar (int x)

{

  asm volatile ("" : : "r" (x) : "memory");

}

__attribute__((noinline)) int

f1 (int k)

{

  struct A a = { 4, k + 6 };

  asm ("" : "+r" (a.i));

  a.j++;

  bar (a.i);            /* { dg-final { gdb-test 20 "a.i" "4" } } */

  bar (a.j);            /* { dg-final { gdb-test 20 "a.j" "14" } } */

  return a.i + a.j;     /* f1 breakpoint */

}

__attribute__((noinline)) int

f2 (int k)

{

  int a[2] = { 4, k + 6 };

  asm ("" : "+r" (a[0]));

  a[1]++;

  bar (a[0]);            /* { dg-final { gdb-test 31 "a\[0\]" "4" } } */

  bar (a[1]);           /* { dg-final { gdb-test 31 "a\[1\]" "14" } } */

  return a[0] + a[1];    /* f2 breakpoint */

}

__attribute__((noinline)) int

f3 (int k)

{

  struct B a = { 4, k + 6 };

  asm ("" : "+r" (a.i));

  a.j++;

  bar (a.i);            /* { dg-final { gdb-test 42 "a.i" "4" } } */

  bar (a.j);            /* { dg-final { gdb-test 42 "a.j" "14" } } */

  return a.i + a.j;     /* f3 breakpoint */

}

__attribute__((noinline)) int

f4 (int k)

{

  int a[2] = { k, k };

  asm ("" : "+r" (a[0]));

  a[1]++;

  bar (a[0]);

  bar (a[1]);

  return a[0] + a[1];            /* f4 breakpoint */

}

__attribute__((noinline)) int

f5 (int k)

{

  struct A a = { k, k };

  asm ("" : "+r" (a.i));

  a.j++;

  bar (a.i);

  bar (a.j);

  return a.i + a.j;             /* f5 breakpoint */

}

__attribute__((noinline)) int

f6 (int k)

{

  int z = 23;

  struct C a = { k, k, z };

  asm ("" : "+r" (a.i));

  a.j++;

  bar (a.i);

  bar (a.j);

  return a.i + a.j;             /* f6 breakpoint */

}

int

main (void)

{

  int k;

  asm ("" : "=r" (k) : "0" (7));

  f1 (k);

  f2 (k);

  f3 (k);

  f4 (k);

  f5 (k);

  f6 (k);

  return 0;

}