On 13/05/19 08:56 -0600, Jeff Law wrote:
Tester started failing Wattributes1.C on various targets after this change:


commit de3f1d9aabb765f78d127696ff9dd0a83b268aa2 (HEAD, refs/bisect/bad)
Author: redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri May 10 21:41:11 2019 +0000

    Improve API docs for <memory> and <new>

            * include/bits/shared_ptr.h: Improve docs.
            * include/bits/shared_ptr_base.h: Likewise.
            * include/bits/stl_uninitialized.h: Likewise.
            * include/bits/unique_ptr.h: Likewise.
            * libsupc++/new: Likewise.

    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@271077 
138bc75d-0d04-0410-961f-82ee72b054a4

x86_64 native:

Running target unix
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++14  (test for warnings, line 125)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++17  (test for warnings, line 125)
FAIL: g++.dg/guality/pr55665.C   -O2  line 23 p == 40


Grubbing through the logs shows:


In file included from 
/home/law/gcc-testing/gcc/gcc/testsuite/g++.dg/cpp0x/Wattributes1.C:5:^M
/home/law/gcc-testing/gcc/libstdc++-v3/libsupc++/new:126:26: note: previous 
declaration of 'void* operator new(std::size_t)'^M

Looking at the test:

// PR c++/60373
// { dg-do compile { target c++11 } }
// { dg-require-visibility "" }

#include <new>
__attribute__((visibility("hidden")))void*operator new(std::size_t); // { dg-warning 
"visibility attribute ignored" }

// { dg-message "previous declaration" "" { target *-*-* } 125 }
~


It looks like we are expecting an error on line 125 that's now occuring
on 126.  Or am I totally off-base here?  I'll avoid ranting on whether
or not it is wise to test for a line # in a header file outside the test :-)

Yeah I have a patch coming. We discussed it on IRC earlier.

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