From: David Malcolm <dmalcolm@redhat.com>
To: gcc-patches@gcc.gnu.org
Cc: David Malcolm <dmalcolm@redhat.com>
Subject: [PATCH 1/2] analyzer: g++ testsuite support
Date: Thu, 06 Feb 2020 20:27:00 -0000 [thread overview]
Message-ID: <20200206202730.18584-1-dmalcolm@redhat.com> (raw)
PR analyzer/93288 reports a C++-specific ICE with -fanalyzer.
This patch creates the beginnings of a C++ test suite for the analyzer,
so that there's a place to put test coverage for the fix.
It adds a regression test for PR analyzer/93212, an ICE fixed
in r10-5970-g32077b693df8e3ed0424031a322df23822bf2f7e.
Successfully regrtested on x86_64-pc-linux-gnu (in conjunction with
the second patch).
OK for master?
gcc/testsuite/ChangeLog:
PR analyzer/93212
* g++.dg/analyzer/analyzer.exp: New subdirectory and .exp suite.
* g++.dg/analyzer/malloc.C: New test.
* g++.dg/analyzer/pr93212.C: New test.
---
gcc/testsuite/g++.dg/analyzer/analyzer.exp | 49 ++++++++++++++++++++++
gcc/testsuite/g++.dg/analyzer/malloc.C | 9 ++++
gcc/testsuite/g++.dg/analyzer/pr93212.C | 17 ++++++++
3 files changed, 75 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/analyzer/analyzer.exp
create mode 100644 gcc/testsuite/g++.dg/analyzer/malloc.C
create mode 100644 gcc/testsuite/g++.dg/analyzer/pr93212.C
diff --git a/gcc/testsuite/g++.dg/analyzer/analyzer.exp b/gcc/testsuite/g++.dg/analyzer/analyzer.exp
new file mode 100644
index 00000000000..60262f678ee
--- /dev/null
+++ b/gcc/testsuite/g++.dg/analyzer/analyzer.exp
@@ -0,0 +1,49 @@
+# Copyright (C) 2020 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 GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+# G++ testsuite that uses the `dg.exp' driver.
+
+# Load support procs.
+load_lib g++-dg.exp
+
+# If the analyzer has not been enabled, bail.
+if { ![check_effective_target_analyzer] } {
+ return
+}
+
+if [info exists DEFAULT_CXXFLAGS] then {
+ set save_default_cxxflags $DEFAULT_CXXFLAGS
+}
+
+# If a testcase doesn't have special options, use these.
+set DEFAULT_CXXFLAGS " -fanalyzer -fdiagnostics-path-format=separate-events -Wanalyzer-too-complex -fanalyzer-call-summaries"
+
+# Initialize `dg'.
+dg-init
+
+# Main loop.
+set tests [lsort [glob -nocomplain $srcdir/$subdir/*.C]]
+
+g++-dg-runtest $tests "" $DEFAULT_CXXFLAGS
+
+# All done.
+dg-finish
+
+if [info exists save_default_cxxflags] {
+ set DEFAULT_CXXFLAGS $save_default_cxxflags
+} else {
+ unset DEFAULT_CXXFLAGS
+}
diff --git a/gcc/testsuite/g++.dg/analyzer/malloc.C b/gcc/testsuite/g++.dg/analyzer/malloc.C
new file mode 100644
index 00000000000..0637295e1f2
--- /dev/null
+++ b/gcc/testsuite/g++.dg/analyzer/malloc.C
@@ -0,0 +1,9 @@
+// { dg-do compile }
+
+#include <stdlib.h>
+
+void test_1 (void *ptr)
+{
+ free (ptr);
+ free (ptr); /* { dg-warning "double-'free' of 'ptr'" } */
+}
diff --git a/gcc/testsuite/g++.dg/analyzer/pr93212.C b/gcc/testsuite/g++.dg/analyzer/pr93212.C
new file mode 100644
index 00000000000..cfbb42d2275
--- /dev/null
+++ b/gcc/testsuite/g++.dg/analyzer/pr93212.C
@@ -0,0 +1,17 @@
+// { dg-do compile { target c++11 } }
+
+#include <iostream>
+auto lol()
+{
+ int aha = 3;
+ return [&aha] {
+ return aha;
+ };
+}
+
+int main()
+{
+ auto lambda = lol();
+ std::cout << lambda() << std::endl;
+ return 0;
+}
--
2.21.0
next reply other threads:[~2020-02-06 20:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 20:27 David Malcolm [this message]
2020-02-06 20:27 ` [PATCH 2/2] analyzer: use ultimate alias target at calls (PR 93288) David Malcolm
2020-02-12 1:41 ` [PATCH 1/2] analyzer: g++ testsuite support Mike Stump
2020-02-13 7:11 ` testsuite: Fix g++.dg/analyzer/pr93212.C with check-c++-all Jakub Jelinek
2020-02-13 9:23 ` David Malcolm
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200206202730.18584-1-dmalcolm@redhat.com \
--to=dmalcolm@redhat.com \
--cc=gcc-patches@gcc.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).