[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #16 from paolo at gcc dot gnu dot org 2006-05-29 20:00 --- Subject: Bug 24692 Author: paolo Date: Mon May 29 20:00:29 2006 New Revision: 114215 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=114215 Log: 2006-05-29 Paolo Carlini [EMAIL PROTECTED] PR libstdc++/24692 * include/bits/atomicity.h (__exchange_and_add_multi, __atomic_add_multi): New, depending on _GLIBCXX_ATOMIC_BUILTINS, inline the atomic builtins. (__exchange_and_add_dispatch, __atomic_add_dispatch): Adjust. * configure.ac: Define _GLIBCXX_ATOMIC_BUILTINS when the atomic builtins are available. * configure: Regenerate. * config.h.in: Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/config.h.in trunk/libstdc++-v3/configure trunk/libstdc++-v3/configure.ac trunk/libstdc++-v3/include/bits/atomicity.h -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #17 from pcarlini at suse dot de 2006-05-29 20:01 --- Fixed. -- pcarlini at suse dot de changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #12 from pinskia at gcc dot gnu dot org 2006-05-21 20:21 --- Any news on this bug? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #13 from pcarlini at suse dot de 2006-05-21 20:30 --- No news about this one. Frankly, since x86-* would not benefit in any way, I consider the work low priority. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #14 from pinskia at gcc dot gnu dot org 2006-05-21 20:33 --- (In reply to comment #13) No news about this one. Frankly, since x86-* would not benefit in any way, I consider the work low priority. What about x86_64 or even PowerPC64 both of which are becoming more popular than x86. In fact in a few years PPC64 might even supass x86 usage (but only because of the PS3). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #15 from pcarlini at suse dot de 2006-05-21 20:36 --- (In reply to comment #14) (In reply to comment #13) No news about this one. Frankly, since x86-* would not benefit in any way, I consider the work low priority. What about x86_64 Of course by x86-* I meant to include x86_64. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #10 from pcarlini at suse dot de 2005-11-08 10:58 --- Ok, apparently short-term at least, smart solutions using libgcc and dynamic linking will not be implemented (one blocker are systems using a static libgcc.a). Therefore this one becomes a pure libstdc++-v3 PR. Then what we can improve is rather limited: we can inline the atomics on architecture families that uniformly implement the builtins (e.g., powerpc - ok, i?86 - not ok). The atomics will also remain in the library, however, for ABI stability reasons. -- pcarlini at suse dot de changed: What|Removed |Added CC|rth at gcc dot gnu dot org | AssignedTo|unassigned at gcc dot gnu |pcarlini at suse dot de |dot org | Status|UNCONFIRMED |ASSIGNED Component|other |libstdc++ Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2005-11-08 10:58:34 date|| Target Milestone|--- |4.2.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
[Bug libstdc++/24692] Atomic builtins for v3
--- Comment #11 from pcarlini at suse dot de 2005-11-08 13:37 --- Changing the declarations in include/bits/atomicity.h to inline definitions forwarding to the builtins and including bits/atomic_word.h instead of bits/atomicity.h in config/cpu/*/atomicity.h for the supported arch families would be most of it, probably. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24692
