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