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From fa770c25013df537c41d0929c4202b0a774a6a75 Mon Sep 17 00:00:00 2001
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From: David Malcolm <dmalcolm@redhat.com>
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Date: Thu, 2 Sep 2021 15:27:59 -0400
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Subject: [PATCH 14/17] Conditionalize tests for PR libstdc++/98466 on
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__LIBSTDCXX_SO_VERSION >= 11
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The tests:
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23_containers/deque/debug/98466.cc
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23_containers/unordered_map/debug/98466.cc
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were added upstream 2021-01-01 as part of:
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libstdc++: Implement N3644 for _GLIBCXX_DEBUG iterators
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https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=05a30af3f237984b4dcf1dbbc17fdac583c46506
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but fail when run in DTS against a system libstdc++.so
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from an older GCC.
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In particular, they use the older implementation of _M_can_compare from
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the dynamic library:
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$ eu-readelf -s 98466.exe | grep can_compare | c++filt
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11: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF __gnu_debug::_Safe_iterator_base::_M_can_compare(__gnu_debug::_Safe_iterator_base const&) const@GLIBCXX_3.4 (4)
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157: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF __gnu_debug::_Safe_iterator_base::_M_can_compare(__gnu_debug::_Safe_iterator_base const&) const@@GLIBCXX_3.4
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---
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.../testsuite/23_containers/deque/debug/98466.cc | 6 ++++++
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.../23_containers/unordered_map/debug/98466.cc | 12 ++++++++++++
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2 files changed, 18 insertions(+)
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diff --git a/libstdc++-v3/testsuite/23_containers/deque/debug/98466.cc b/libstdc++-v3/testsuite/23_containers/deque/debug/98466.cc
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index c2d793374..e92d719bf 100644
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--- a/libstdc++-v3/testsuite/23_containers/deque/debug/98466.cc
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+++ b/libstdc++-v3/testsuite/23_containers/deque/debug/98466.cc
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@@ -26,11 +26,17 @@ void test01()
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{
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typedef typename __gnu_debug::deque<int>::iterator It;
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It it = It();
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( it == it );
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+#endif
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typedef typename __gnu_debug::deque<int>::const_iterator Cit;
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Cit cit = Cit();
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( cit == cit );
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+#endif
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}
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int main()
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diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/debug/98466.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/debug/98466.cc
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index cc22b9ff8..3a1b6cd32 100644
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--- a/libstdc++-v3/testsuite/23_containers/unordered_map/debug/98466.cc
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+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/debug/98466.cc
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@@ -25,16 +25,28 @@
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void test01()
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{
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__gnu_debug::unordered_map<int, int>::iterator it{};
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( it == it );
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+#endif
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__gnu_debug::unordered_map<int, int>::const_iterator cit{};
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( cit == cit );
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+#endif
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__gnu_debug::unordered_map<int, int>::local_iterator lit{};
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( lit == lit );
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+#endif
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__gnu_debug::unordered_map<int, int>::const_local_iterator clit{};
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+ // Fixed upstream in GCC 11
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+#if __LIBSTDCXX_SO_VERSION >= 11
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VERIFY( clit == clit );
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+#endif
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}
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int main()
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--
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2.31.1
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