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r228615 - in /branches/gcc-5-branch: gcc/Change...
- From: redi at gcc dot gnu dot org
- To: libstdc++-cvs at gcc dot gnu dot org
- Date: Thu, 08 Oct 2015 16:54:23 -0000
- Subject: r228615 - in /branches/gcc-5-branch: gcc/Change...
Author: redi
Date: Thu Oct 8 16:54:23 2015
New Revision: 228615
URL: https://gcc.gnu.org/viewcvs?rev=228615&root=gcc&view=rev
Log:
Backport PR libstdc++/65913 fix from mainline.
Handle alignment in __atomic_is_lock_free
gcc:
2015-09-17 Richard Henderson <rth@redhat.com>
PR libstdc++/65913
* builtins.c (fold_builtin_atomic_always_lock_free): Handle fake
pointers that encode the alignment of the object.
libstdc++-v3:
2015-09-17 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/65913
* include/bits/atomic_base.h (__atomic_base<_TTp>::is_lock_free(),
__atomic_base<_PTp*>::is_lock_free()): Call the built-in with the
immediate pointer value, not a variable.
* include/std/atomic (atomic<T>::is_lock_free()): Likewise.
* testsuite/29_atomics/atomic/65913.cc: New.
Added:
branches/gcc-5-branch/libstdc++-v3/testsuite/29_atomics/atomic/65913.cc
Modified:
branches/gcc-5-branch/libstdc++-v3/ChangeLog
branches/gcc-5-branch/libstdc++-v3/include/bits/atomic_base.h
branches/gcc-5-branch/libstdc++-v3/include/std/atomic
Changes in other areas also in this revision:
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/builtins.c