Comparing with SSE, NEON instructions seems hard to be generated in some cases

2014-03-01 Thread 勝余傅
Hi, In the following sample code #define N 4 float a[N] __attribute__ ((aligned (16))); float b[N] __attribute__ ((aligned (16))); float c[N] __attribute__ ((aligned (16))); double d[N] __attribute__ ((aligned (16))); void f(float *pa, float *pb); int main(){ int i; f(a,b);

Re: [RFC][PATCH 0/5] arch: atomic rework

2014-03-01 Thread Peter Sewell
Hi Paul, On 28 February 2014 18:50, Paul E. McKenney wrote: > On Thu, Feb 27, 2014 at 12:53:12PM -0800, Paul E. McKenney wrote: >> On Thu, Feb 27, 2014 at 11:47:08AM -0800, Linus Torvalds wrote: >> > On Thu, Feb 27, 2014 at 11:06 AM, Paul E. McKenney >> > wrote: >> > > >> > > 3. The compari

Re: [RFC][PATCH 0/5] arch: atomic rework

2014-03-01 Thread Paul E. McKenney
On Sat, Mar 01, 2014 at 04:06:34AM -0600, Peter Sewell wrote: > Hi Paul, > > On 28 February 2014 18:50, Paul E. McKenney > wrote: > > On Thu, Feb 27, 2014 at 12:53:12PM -0800, Paul E. McKenney wrote: > >> On Thu, Feb 27, 2014 at 11:47:08AM -0800, Linus Torvalds wrote: > >> > On Thu, Feb 27, 2014

GSoC question

2014-03-01 Thread Andrew Sutton
Hi all, I'm not sure if this is the right place to post, but I had a question regarding GSoC. I'm working on the C++ concepts branch (slowly), and had some students express interest in contributing to its development over the course of the summer. I was hoping I could act as a mentor or co-mentor

gcc-4.7-20140301 is now available

2014-03-01 Thread gccadmin
Snapshot gcc-4.7-20140301 is now available on ftp://gcc.gnu.org/pub/gcc/snapshots/4.7-20140301/ and on various mirrors, see http://gcc.gnu.org/mirrors.html for details. This snapshot has been generated from the GCC 4.7 SVN branch with the following options: svn://gcc.gnu.org/svn/gcc/branches