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- /* Copyright (C) 2010-2022 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;
- }
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