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[Bug middle-end/83239] False positive from -Wstringop-overflow on simple std::vector code
- From: "msebor at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 16 Dec 2017 22:37:54 +0000
- Subject: [Bug middle-end/83239] False positive from -Wstringop-overflow on simple std::vector code
- Auto-submitted: auto-generated
- References: <bug-83239-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83239
--- Comment #15 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Sat Dec 16 22:37:22 2017
New Revision: 255753
URL: https://gcc.gnu.org/viewcvs?rev=255753&root=gcc&view=rev
Log:
PR tree-optimization/83239 - False positive from -Wstringop-overflow
on simple std::vector code
libstdc++/CHangeLog:
* include/bits/vector.tcc (vector::_M_default_append): Assert
invariant to generate better code.
gcc/testsuite/ChangeLog:
* g++.dg/pr83239.C: New test case.
Added:
trunk/gcc/testsuite/g++.dg/pr83239.C
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/vector.tcc