[PATCH v3 10/13] test: multi-dimensional c99 vla.

Sanimir Agovic
2013-12-04T14:22:52Z

2013-10-18 Keven Boell <keven.boell@intel.com>
Sanimir Agovic <sanimir.agovic@intel.com>

gdb/testsuite:
* gdb.base/vla-multi.c: New. Test source file
for testing multi-dimensional VLA's in C.
* gdb.base/vla-multi.exp: New. Tests ensure
that multi-dimensional VLA's can be evaluated
correctly in C.

Change-Id: If9cf7517301e0558aced1358723e1b62f6df0c97
Signed-off-by: Sanimir Agovic <sanimir.agovic@intel.com>
---
gdb/testsuite/gdb.base/vla-multi.c | 55 ++++++++++++++++++++++++++++++++++++
gdb/testsuite/gdb.base/vla-multi.exp | 48 +++++++++++++++++++++++++++++++
2 files changed, 103 insertions(+)
create mode 100644 gdb/testsuite/gdb.base/vla-multi.c
create mode 100644 gdb/testsuite/gdb.base/vla-multi.exp

diff --git a/gdb/testsuite/gdb.base/vla-multi.c b/gdb/testsuite/gdb.base/vla-multi.c
new file mode 100644
index 0000000..47c753e
--- /dev/null
+++ b/gdb/testsuite/gdb.base/vla-multi.c
@@ -0,0 +1,55 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2013 Free Software Foundation, Inc.
+
+ 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/>. */
+
+void
+f1 (int n, int m, int vla_ptr[n][m])
+{
+ return; /* f1_breakpoint */
+}
+
+void
+f2 (int m, int vla_ptr[][m])
+{
+ return; /* f2_breakpoint */
+}
+
+void
+vla_mult (int n, int m)
+{
+ int vla[n][m];
+ int i, j;
+
+ for (i = 0; i < n; i++)
+ {
+ for (j = 0; j < m; j++)
+ {
+ vla[i][j] = i + j;
+ }
+ }
+
+ f1(n, m, vla); /* vla_filled */
+ f2(m, vla);
+
+ return;
+}
+
+int
+main()
+{
+ vla_mult(2, 2);
+ return 0;
+}
diff --git a/gdb/testsuite/gdb.base/vla-multi.exp b/gdb/testsuite/gdb.base/vla-multi.exp
new file mode 100644
index 0000000..53f626f
--- /dev/null
+++ b/gdb/testsuite/gdb.base/vla-multi.exp
@@ -0,0 +1,48 @@
+# Copyright 2013 Free Software Foundation, Inc.
+
+# 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/>.
+
+standard_testfile ".c"
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
+ return -1
+}
+
+if ![runto_main] {
+ return -1
+}
+
+set sizeof_int [get_sizeof "int" 4]
+
+gdb_breakpoint [gdb_get_line_number "vla_filled"]
+gdb_continue_to_breakpoint "vla_filled"
+gdb_test "print vla" "\\$\\d+ = \\\{\\\{0, 1\\\}, \\\{1, 2\\\}\\\}" \
+ "print vla"
+gdb_test "print vla\[0\]\[1\]" "\\$\\d+ = 1" "print vla\[0\]\[1\]"
+
+gdb_breakpoint [gdb_get_line_number "f1_breakpoint"]
+gdb_continue_to_breakpoint "f1_breakpoint"
+gdb_test "print *vla_ptr" "\\$\\d+ = \\\{0, 1\\\}" "print *vla_ptr (f1)"
+
+# Calculate the overall size of the vla.
+set sizeof_vla [ expr "2" * "$sizeof_int" ]
+gdb_test "print sizeof vla_ptr\[0\]" "\\$\\d+ = ${sizeof_vla}" \
+ "print sizeof vla_ptr\[0\]"
+gdb_test "ptype &vla_ptr" \
+ "type = int \\\(\\\*\\\*\\\)\\\[variable length\\\]" \
+ "ptype &vla_ptr"
+
+gdb_breakpoint [gdb_get_line_number "f2_breakpoint"]
+gdb_continue_to_breakpoint "f2_breakpoint"
+gdb_test "print *vla_ptr" "\\$\\d+ = \\\{0, 1\\\}" "print *vla_ptr (f2)"
--
1.8.3.1