xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/testsuite/gdb.base/vla-sideeffect.exp (revision d909946ca08dceb44d7d0f22ec9488679695d976) 
1# Copyright 2014-2015 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 ${testfile}.exp ${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}" \
37         "print sizeof (vla1\[i++\])"
38gdb_test "print i" " = 0" \
39         "print i - sizeof no side effects"
40
41gdb_test "print sizeof (++vla1\[0\])" " = ${sizeof_int}" \
42         "print sizeof (++vla1\[0\])"
43gdb_test "print vla1\[0\]" " = 10" \
44         "print vla1\[0\] - sizeof no side effects"
45
46gdb_test "ptype ++vla1\[0\]" "type = int" "ptype ++vla1\[0\]"
47gdb_test "print vla1\[0\]" " = 10" \
48         "print vla1\[0\] - ptype no side effects"
49
50gdb_test "whatis ++vla1\[0\]" "type = int" "whatis ++vla1\[0\]"
51gdb_test "print vla1\[0\]" " = 10" \
52         "print vla1\[0\] - whatis no side effects"
53
54
55gdb_test "print sizeof (vla2\[i++\])" " = ${sizeof_vla}" \
56         "print sizeof (vla2\[i++\])"
57gdb_test "print i" " = 1" \
58         "print i - sizeof with side effects (1)"
59
60gdb_test "print sizeof (vla2\[i++ + sizeof(j++)\])" " = ${sizeof_vla}" \
61         "print sizeof (vla2\[i++ + sizeof(j++)\])"
62gdb_test "print i" " = 2" \
63         "print i - sizeof with side effects (2)"
64gdb_test "print j" " = 0" \
65         "print j - sizeof with no side effects"
66
67gdb_test "ptype vla2\[i++\]" "type = int \\\[10\\\]" \
68         "ptype vla2\[i++\]"
69gdb_test "print i" " = 2" \
70         "print i - ptype with side effects (1)"
71
72gdb_test "ptype vla2\[i++ + sizeof(j++)\]" "type = int \\\[10\\\]" \
73         "ptype vla2\[i++ + sizeof(j++)\]"
74gdb_test "print i" " = 2" \
75         "print i - ptype with side effects (2)"
76gdb_test "print j" " = 0" \
77         "print j - ptype with no side effects"
78
79gdb_test "whatis vla2\[i++\]" "type = int \\\[10\\\]" \
80         "whatis vla2\[i++\]"
81gdb_test "print i" " = 2" \
82         "print i - whatis with side effects (1)"
83
84gdb_test "whatis vla2\[i++ + sizeof(j++)\]" "type = int \\\[10\\\]" \
85         "whatis vla2\[i++ + sizeof(j++)\]"
86gdb_test "print i" " = 2" \
87         "print i - whatis with side effects (2)"
88gdb_test "print j" " = 0" \
89         "print j - whatis with no side effects"
90