1# Copyright 2014-2020 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16# Tests side-effects of sizeof evaluation.
17# Based on gcc/testsuite/gcc.dg/vla-4.c; vla-15.c
18
19standard_testfile
20
21if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
22    return -1
23}
24
25if ![runto_main] {
26    return -1
27}
28
29gdb_breakpoint [gdb_get_line_number "vla-filled"]
30gdb_continue_to_breakpoint "vla-filled"
31
32# Check side effects for sizeof argument.
33set sizeof_int [get_sizeof "int" 4]
34set sizeof_vla [ expr "10" * "$sizeof_int" ]
35
36gdb_test "print sizeof (vla1\[i++\])" " = ${sizeof_int}"
37gdb_test "print i" " = 0" \
38         "print i - sizeof no side effects"
39
40gdb_test "print sizeof (++vla1\[0\])" " = ${sizeof_int}"
41gdb_test "print vla1\[0\]" " = 10" \
42         "print vla1\[0\] - sizeof no side effects"
43
44gdb_test "ptype ++vla1\[0\]" "type = int"
45gdb_test "print vla1\[0\]" " = 10" \
46         "print vla1\[0\] - ptype no side effects"
47
48gdb_test "whatis ++vla1\[0\]" "type = int"
49gdb_test "print vla1\[0\]" " = 10" \
50         "print vla1\[0\] - whatis no side effects"
51
52
53gdb_test "print sizeof (vla2\[i++\])" " = ${sizeof_vla}"
54gdb_test "print i" " = 1" \
55         "print i - sizeof with side effects (1)"
56
57gdb_test "print sizeof (vla2\[i++ + sizeof(j++)\])" " = ${sizeof_vla}"
58gdb_test "print i" " = 2" \
59         "print i - sizeof with side effects (2)"
60gdb_test "print j" " = 0" \
61         "print j - sizeof with no side effects"
62
63gdb_test "ptype vla2\[i++\]" "type = int \\\[10\\\]"
64gdb_test "print i" " = 2" \
65         "print i - ptype with side effects (1)"
66
67gdb_test "ptype vla2\[i++ + sizeof(j++)\]" "type = int \\\[10\\\]"
68gdb_test "print i" " = 2" \
69         "print i - ptype with side effects (2)"
70gdb_test "print j" " = 0" \
71         "print j - ptype with no side effects"
72
73gdb_test "whatis vla2\[i++\]" "type = int \\\[10\\\]"
74gdb_test "print i" " = 2" \
75         "print i - whatis with side effects (1)"
76
77gdb_test "whatis vla2\[i++ + sizeof(j++)\]" "type = int \\\[10\\\]"
78gdb_test "print i" " = 2" \
79         "print i - whatis with side effects (2)"
80gdb_test "print j" " = 0" \
81         "print j - whatis with no side effects"
82