Re: GCC 4.8.4 Status Report (2014-12-05)

2014-12-11 Thread Joshua Kinard
On 12/05/2014 04:18, Jakub Jelinek wrote: > Status > == > > It is time for another 4.8 release, I'd like to create 4.8.4 release > candidate at the end of the next week and if all goes well, 4.8.4 release > a week after that. If you have any safe fixes you'd like to be backported, > please do

gcc-4.8-20141211 is now available

2014-12-11 Thread gccadmin
Snapshot gcc-4.8-20141211 is now available on ftp://gcc.gnu.org/pub/gcc/snapshots/4.8-20141211/ and on various mirrors, see http://gcc.gnu.org/mirrors.html for details. This snapshot has been generated from the GCC 4.8 SVN branch with the following options: svn://gcc.gnu.org/svn/gcc/branches

Re: Do we create new insn in combine? Or can we rely on INSN_LUID checking the order of instuctions?

2014-12-11 Thread Segher Boessenkool
On Thu, Dec 11, 2014 at 03:13:50PM +0800, Bin.Cheng wrote: > So I am wondering if I can rely on INSN_LUID checking orders of > difference instruction. If it can be done, I can easily differentiate > live range shrink and extend. > Further question is, if we don't insert new insns, can I use INSN_L

Re: [RFC] GCC vector extension: binary operators vs. differing signedness

2014-12-11 Thread Ulrich Weigand
Richard Biener wrote: > On Wed, Dec 10, 2014 at 10:09 PM, Ulrich Weigand wrote: > > So at the very least, we should bring the documentation in line with the > > actual behavior. However, as seen above, that actual behavior is probably > > not really useful in any case, at least in C. > > > > > >

Vector modes and the corresponding width integer mode

2014-12-11 Thread Matthew Fortune
Hi, I'm working on MIPS SIMD support for MSA. Can anyone point me towards information about the need for an integer mode of equal size to any supported vector mode? I.e. if I support V4SImode is there any core GCC requirement that TImode is also supported? Any guidance is appreciated. The MIPS p

Re: [RFC] GCC vector extension: binary operators vs. differing signedness

2014-12-11 Thread Richard Biener
On Wed, Dec 10, 2014 at 10:09 PM, Ulrich Weigand wrote: > Hello, > > we've noticed the following behavior of the GCC vector extension, and were > wondering whether this is actually intentional: > > When you use binary operators on two vectors, GCC will accept not only > operands > that use the sa