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1d506c26 | 1 | # Copyright (C) 2015-2024 Free Software Foundation, Inc. |
7fecd1b4 DE |
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 | # Test printing of std::cerr. | |
17 | # libstdc++ is typically near the end of the list of shared libraries, | |
18 | # and thus searched last (or near last). | |
19 | # Plus llvm had a bug where its pubnames output that gold uses to generate | |
20 | # the index caused a massive perf regression (basically it emitted an entry | |
21 | # for every CU that used it, whereas we only want the CU with the | |
22 | # definition). | |
23 | # | |
24 | # Note: One difference between this test and gmonster-ptype-string.py | |
25 | # is that here we do not pre-expand the symtab: we don't want include | |
26 | # GDB's slowness in searching expanded symtabs first to color these results. | |
27 | ||
28 | from perftest import perftest | |
29 | from perftest import measure | |
30 | from perftest import utils | |
31 | ||
13123da8 | 32 | |
7fecd1b4 DE |
33 | class PrintCerr(perftest.TestCaseWithBasicMeasurements): |
34 | def __init__(self, name, run_names, binfile): | |
35 | super(PrintCerr, self).__init__(name) | |
36 | self.run_names = run_names | |
37 | self.binfile = binfile | |
38 | ||
39 | def warm_up(self): | |
40 | pass | |
41 | ||
42 | def execute_test(self): | |
43 | for run in self.run_names: | |
13123da8 | 44 | this_run_binfile = "%s-%s" % (self.binfile, utils.convert_spaces(run)) |
7fecd1b4 DE |
45 | utils.select_file(this_run_binfile) |
46 | utils.runto_main() | |
47 | iteration = 5 | |
48 | while iteration > 0: | |
50a5f187 | 49 | utils.safe_execute("mt flush symbol-cache") |
7fecd1b4 DE |
50 | func = lambda: utils.safe_execute("print gm_std::cerr") |
51 | self.measure.measure(func, run) | |
52 | iteration -= 1 |