Re: xtensa PR65730

2015-04-10 Thread augustine.sterl...@gmail.com
On Fri, Apr 10, 2015 at 12:15 PM, Max Filippov wrote: > Then configuration w/o multiplication should call helper at -O0 and > use shift at higher optimization levels? That is what I would expect.

GNAT User's Guide /onlinedocs broken? (was: Broken links on gcc.gnu.org/onlinedocs)

2015-04-10 Thread Gerald Pfeifer
On Mon, 9 Feb 2015, EXT-Barrett, James wrote: > The following links are broken at gcc.gnu.org/onlinedocs/4.9.2. The > corresponding 4.9.2-related links at gcc.gnu.org/onlinedocs are also broken: > GCC 4.9.2 GNAT User's Guide (/onlinedocs/gcc-4.9.2/gnat_ugn_unw/) > also in PDF (/onlinedocs

Re: Selecting an architecture tuple for the Rumprun toolchain

2015-04-10 Thread Joseph Myers
On Fri, 10 Apr 2015, Martin Lucina wrote: > On Thursday, 09.04.2015 at 16:20, Joseph Myers wrote: > > > Why do you not recommend using the vendor component for anything > > > significant? To me it seems the logical place to say "this is a rumprun > > > toolchain", plus the result is easier to par

Re: xtensa PR65730

2015-04-10 Thread Max Filippov
On Fri, Apr 10, 2015 at 10:51 PM, augustine.sterl...@gmail.com wrote: > On Fri, Apr 10, 2015 at 12:15 PM, Max Filippov wrote: >> Then configuration w/o multiplication should call helper at -O0 and >> use shift at higher optimization levels? > > That is what I would expect. Ok, then I see why thi

Re: AutoFDO profile toolchain is open-sourced

2015-04-10 Thread Jan Hubicka
> On Tue, Apr 7, 2015 at 9:45 AM, Ilya Palachev wrote: > > In the mentioned README file it is said that " In order to collect this > > profile, you will need to have an Intel CPU that have last branch record > > (LBR) support." Is this information obsolete? Chrome Canary builds use > > AutoFDO for

Re: Please document `contrib/download_prerequisites'

2015-04-10 Thread Gerald Pfeifer
On Thu, 30 May 2013, Michael Witten wrote: >> http://gcc.gnu.org/wiki/InstallingGCC > I'm not looking for anything. > > That wiki information should be incorporated into what that wiki page > calls `the official installation docs', and the rest of it should > probably be thrown out as superfluous.

Re: AutoFDO profile toolchain is open-sourced

2015-04-10 Thread Xinliang David Li
LBR is used for both cfg edge profiling and indirect call Target value profiling. David On Fri, Apr 10, 2015 at 3:26 PM, Xinliang David Li wrote: > LBR is used for both cfg edge profiling and indirect call Target value > profiling. > > David > > On Apr 10, 2015 10:39 AM, "Jan Hubicka" wrote: >>

Re: AutoFDO profile toolchain is open-sourced

2015-04-10 Thread Jan Hubicka
> LBR is used for both cfg edge profiling and indirect call Target value > profiling. I see, that makes sense ;) I guess if we want to support profile collection on targets w/o this feature we could still use one of the algorithms that try to guess edge profile from BB profile. Honza

Re: AutoFDO profile toolchain is open-sourced

2015-04-10 Thread Xinliang David Li
On Tue, Apr 7, 2015 at 7:45 AM, Ilya Palachev wrote: > Hi, > > Here are some questions about AutoFDO. > > On 08.05.2014 02:55, Dehao Chen wrote: >> >> We have open-sourced AutoFDO profile toolchain in: >> >> https://github.com/google/autofdo >> >> For GCC developers, the most important tool is cre

Re: AutoFDO profile toolchain is open-sourced

2015-04-10 Thread Xinliang David Li
On Fri, Apr 10, 2015 at 3:43 PM, Jan Hubicka wrote: >> LBR is used for both cfg edge profiling and indirect call Target value >> profiling. > I see, that makes sense ;) I guess if we want to support profile collection > on targets w/o this feature we could still use one of the algorithms that > t

Re: xtensa PR65730

2015-04-10 Thread augustine.sterl...@gmail.com
On Fri, Apr 10, 2015 at 1:18 PM, Max Filippov wrote: > Ok, then I see why this doesn't happen: mulsi3 pattern matching is > conditional on TARGET_MUL32, so when TARGET_MUL32 ==0 and > expand_simple_binop emits a call to a helper it's not considered > mulsi3, it's just a call: > > (call_insn/u 17 1

Re: lto bootstrap fails.

2015-04-10 Thread Jan Hubicka
> On Fri, Apr 10, 2015 at 11:18:39AM -0400, Trevor Saunders wrote: > > On Fri, Apr 10, 2015 at 03:59:19PM +0200, Toon Moene wrote: > > > Like this: > > > > > > https://gcc.gnu.org/ml/gcc-testresults/2015-04/msg01086.html > > > > > > ODR rears its head again ... > > > > huh, why is c/c-lang.h ge

Need help to install C++ compiler

2015-04-10 Thread Kumar Aditya
Hello GCC team, Greetings... I am new user of Linux. I have RHEL 6.0 installed and want to run C++ on my system but I do not know how. Please help me or let me know where to contact. -- Thanks & Regards, Kumar Aditya +919015142426