Re: Compilers and RCU readers: Once more unto the breach!

2015-07-13 Thread Paul E. McKenney
On Tue, May 19, 2015 at 05:55:10PM -0700, Paul E. McKenney wrote: > Hello! > > Following up on last year's discussion (https://lwn.net/Articles/586838/, > https://lwn.net/Articles/588300/), I believe that we have a solution. If > I am wrong, I am sure you all will let me know, and in great detail

Re: %fs and %gs segments on x86/x86-64

2015-07-13 Thread Bin.Cheng
On Thu, Jul 9, 2015 at 8:02 PM, Armin Rigo wrote: > Hi all, > > Here is an updated patch (attached) for __seg_fs and __seg_gs: > > * added a target hook "default_pointer_address_modes" to avoid > disabling a few gcc optimizations which, according to my reading of > the documentation, should contin

GCC 5.2 Second Release Candidate available from gcc.gnu.org

2015-07-13 Thread Richard Biener
A second release candidate for GCC 5.2 is available from ftp://gcc.gnu.org/pub/gcc/snapshots/5.2.0-RC-20150712 and shortly its mirrors. It has been generated from SVN revision 225717. I have sofar bootstrapped the release candidate on x86_64-suse-linux-gnu. Please test the release candidate