gcc-4.8-20140925 is now available

2014-09-25 Thread gccadmin
Snapshot gcc-4.8-20140925 is now available on ftp://gcc.gnu.org/pub/gcc/snapshots/4.8-20140925/ 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: cgraph_node::verify - quite strong condition that was met by IPA-ICF

2014-09-25 Thread Jan Hubicka
> Hello. > > I've been finalizing IPA ICF testing process and I met a condition > for lto-bootstrap, where cgraph_node::verify encounters error: > > In WPA, I prove that gen_vec_initv16qi can be merged with > gen_vec_initv2sf. In the following case, ale local calls are > redirected: > > wh

Autotuning parameters/heuristics within gcc - best place to start?

2014-09-25 Thread Robert Stevenson
Hi, I am planning to begin a project to explore the space of tuning gcc internals in an effort to increase performance. I am wondering if anyone can point to me any parameterizations, heuristics, or priorities functions within gcc that can be tuned/adjusted. Some general areas I am considering inc

cgraph_node::verify - quite strong condition that was met by IPA-ICF

2014-09-25 Thread Martin Liška
Hello. I've been finalizing IPA ICF testing process and I met a condition for lto-bootstrap, where cgraph_node::verify encounters error: In WPA, I prove that gen_vec_initv16qi can be merged with gen_vec_initv2sf. In the following case, ale local calls are redirected: while (alias->cal

Re: [RFD] Using the 'memory constraint' trick to avoid memory clobber doesn't work

2014-09-25 Thread Yury Gribov
On 09/24/2014 12:31 PM, Richard Biener wrote: On Wed, Sep 24, 2014 at 9:43 AM, David Wohlferd wrote: Hans-Peter Nilsson: I should have listened to you back when you raised concerns about this. My apologies for ever doubting you. In summary: - The "trick" in the docs for using an arbitrarily