search for: mzolotukhin

On 28 Feb 2017, at 22:50, Michael Zolotukhin <mzolotukhin at apple.com<mailto:mzolotukhin at apple.com>> wrote: I also usually rerun suspiciously improved or regressed tests to verify the performance change. Most of the time, if it was just a noise, the test doesn’t appear on another run. I wish LNT (or any other script) could do that for me :)...

...>, David Blaikie <dblaikie at gmail.com>, Davide Italiano <davide at freebsd.org>, Dehao Chen <dehao at google.com>, Evgeniy Stepanov <eugeni.stepanov at gmail.com>, Hal Finkel <hfinkel at anl.gov>, Kostya Serebryany <kcc at google.com>, Michael Zolotukhin <mzolotukhin at apple.com>, Reid Kleckner <rnk at google.com>, Sanjay Patel <spatel at rotateright.com> Cc: gkistanova at gmail.com The Buildbot has detected a new failure on builder llvm-mips-linux while building llvm. Full details are available at: http://lab.llvm.org:8011/builders/llvm-mips...

On Sat, Aug 22, 2015 at 11:57 PM, Michael Zolotukhin <mzolotukhin at apple.com> wrote: > Hi, > > Several passes would have troubles with such code (namely, GVN and > JumpThreading). Can you just choose not to run those particular passes? I suppose the big problem would be if there's a problem with the code generation and related stuff like i...

...:dehao at google.com>>, Evgeniy Stepanov <eugeni.stepanov at gmail.com<mailto:eugeni.stepanov at gmail.com>>, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>>, Kostya Serebryany <kcc at google.com<mailto:kcc at google.com>>, Michael Zolotukhin <mzolotukhin at apple.com<mailto:mzolotukhin at apple.com>>, Reid Kleckner <rnk at google.com<mailto:rnk at google.com>>, Sanjay Patel <spatel at rotateright.com<mailto:spatel at rotateright.com>> Cc: gkistanova at gmail.com<mailto:gkistanova at gmail.com> The Buildbot h...

The reruns flag already does that. It helps a bit, but only as long as the the benchmark is flagged as regressed. > On May 18, 2015, at 8:28 PM, Sean Silva <chisophugis at gmail.com> wrote: > > > > On Mon, May 18, 2015 at 11:24 AM, Mikhail Zolotukhin <mzolotukhin at apple.com <mailto:mzolotukhin at apple.com>> wrote: > Hi Chris and others! > > I totally support any work in this direction. > > In the current state LNT’s regression detection system is too noisy, which makes it almost impossible to use in some cases. If after each run...

...v at gmail.com>, Fiona Glaser <escha at apple.com>, Hal Finkel < hfinkel at anl.gov>, Ivan Krasin <krasin at chromium.org>, Jingyue Wu < jingyue at google.com>, Kaelyn Takata <rikka at google.com>, Kostya Serebryany < kcc at google.com>, Michael Zolotukhin <mzolotukhin at apple.com>, Reid Kleckner < rnk at google.com>, Rui Ueyama <ruiu at google.com>, Sanjay Patel < spatel at rotateright.com>, Vedant Kumar <vsk at apple.com> Cc: gkistanova at gmail.com The Buildbot has detected a new failure on builder sanitizer-x86_64-linux-bootstrap...

Hi Michael, On Thu, Dec 7, 2017 at 3:16 AM, Michael Zolotukhin <mzolotukhin at apple.com> wrote: > > Nice to IWYU developers here:) I wonder how hard it would be to run IWYU on > LLVM/Clang (or, if it’s supposed to work, I wonder what I did wrong). There are known problems with running IWYU over LLVM/Clang -- Zachary Turner made an attempt a while back to get...

Hi devs, Recently I came across an interesting testcase that LLVM failed to optimize well. The test does some image processing, and as a part of it, it traverses all the pixels and computes some value basing on the adjacent pixels. So, the hot part looks like this: for(y = 0..height) { for (x = 0..width) { val = 0 for (j = 0..5) { for (i = 0..5) { val += img[x+i,y+j] *

...could not determine the original source location for :0:0 I found “llvm-as < /dev/null | llc -march=aarch64 -mattr=help” which listed a bunch of features but when I tried adding “-mfpu=neon” or “-mattr=+neon”, clang complained that the option was unrecognized. From: Michael Zolotukhin [mailto:mzolotukhin at apple.com] Sent: Monday, February 09, 2015 3:08 PM To: Ralph Campbell Cc: Arnaud A. de Grandmaison; llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] aarch64 status for generating SIMD instructions Hi Ralph, A bunch of useful options for vectorizers is listed in [1]. Also, what you see might be a...

...ne options to define what transform to do, and unit tests to test the delegate behaviour and return values. I'll try and produce a mega patch with at least the loop vectoriser moved over, then split it up again after review. Cheers, James On Tue, 28 Jul 2015 at 20:27, Michael Zolotukhin <mzolotukhin at apple.com> wrote: > BTW, I think this thread should be on LLVM-dev, and I’d also CC Arnold, > Hal, and Nadav - their feedback would be very valuable here. > > Michael > > On Jul 28, 2015, at 12:21 PM, Mikhail Zolotukhin <mzolotukhin at apple.com> > wrote: > >...

On Wed, Dec 21, 2016 at 8:07 AM, Davide Italiano via llvm-dev < llvm-dev at lists.llvm.org> wrote: > On Mon, Dec 19, 2016 at 4:24 PM, Mikhail Zolotukhin > <mzolotukhin at apple.com> wrote: > > Hi Davide, > > > > Thanks for the analysis, it's really interesting! And I'm really glad > that we now put more and more attention at the compile time! > > > > Just recently I've been looking into historical compile time data...

...ers can be converted to function passes, but in that case we will execute them only once per LPPassManager, which is also not an option. Now I’m not sure how to better bypass this issue. Do you have any ideas? - Michael Thanks, Michael — Igor On 14 Oct 2016, at 01:57, Mikhail Zolotukhin <mzolotukhin at apple.com<mailto:mzolotukhin at apple.com>> wrote: Hi Igor, I like the second option more, and I think we can do something like this, or even more general. I'd suggest creating a new loop pass, called e.g. LoopVerification, and manually (at least for now) add it as a last pass to...

...Mon, Dec 11, 2017 at 3:37 PM, Mikhail Zolotukhin via cfe-dev < cfe-dev at lists.llvm.org> wrote: > Hi Kim, > > On Dec 10, 2017, at 7:39 AM, Kim Gräsman <kim.grasman at gmail.com> wrote: > > Hi Michael, > > On Thu, Dec 7, 2017 at 3:16 AM, Michael Zolotukhin > <mzolotukhin at apple.com> wrote: > > > Nice to IWYU developers here:) I wonder how hard it would be to run IWYU on > LLVM/Clang (or, if it’s supposed to work, I wonder what I did wrong). > > > There are known problems with running IWYU over LLVM/Clang -- Zachary > Turner made an atte...

...hugis at gmail.com>> wrote: > > On Wed, Dec 21, 2016 at 8:07 AM, Davide Italiano via llvm-dev > <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: > > On Mon, Dec 19, 2016 at 4:24 PM, Mikhail Zolotukhin > > > <mzolotukhin at apple.com <mailto:mzolotukhin at apple.com>> wrote: > > > > Hi Davide, > > > > > > > > Thanks for the analysis, it's really interesting! And I'm > really glad that we now put more and more attention at the &g...

On Mon, Dec 19, 2016 at 4:24 PM, Mikhail Zolotukhin <mzolotukhin at apple.com> wrote: > Hi Davide, > > Thanks for the analysis, it's really interesting! And I'm really glad that we now put more and more attention at the compile time! > > Just recently I've been looking into historical compile time data as well, and have had similar...

...lists.llvm.org> wrote: > + llvm-dev > > -----Original Message----- > From: Nema, Ashutosh > Sent: Wednesday, July 4, 2018 12:12 PM > To: Hal Finkel <hfinkel at anl.gov>; Saito, Hideki <hideki.saito at intel.com>; > Sanjay Patel <spatel at rotateright.com>; mzolotukhin at apple.com > Cc: dccitaliano at gmail.com; Masten, Matt <matt.masten at intel.com> > Subject: RE: [llvm-dev] [RFC][VECLIB] how should we legalize VECLIB calls? > > Hi Hal, > > > __svml_sin8 (plus whatever shuffles are necessary). > > The vectorizer should do this....

...<mailto:chisophugis at gmail.com>> wrote: >> On Wed, Dec 21, 2016 at 8:07 AM, Davide Italiano via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: >> On Mon, Dec 19, 2016 at 4:24 PM, Mikhail Zolotukhin >> >> >> <mzolotukhin at apple.com <mailto:mzolotukhin at apple.com>> wrote: >> >> >> > Hi Davide, >> >> >> > >> >> >> > Thanks for the analysis, it's really interesting! And I'm really glad that we now put more and more attention at t...

> On Aug 23, 2015, at 11:35 AM, Joerg Sonnenberger via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > On Sun, Aug 23, 2015 at 01:46:12AM +0100, Russell Wallace via llvm-dev wrote: >> On Sat, Aug 22, 2015 at 11:57 PM, Michael Zolotukhin <mzolotukhin at apple.com> >> wrote: >> >>> Hi, >>> >>> Several passes would have troubles with such code (namely, GVN and >>> JumpThreading). >> >> >> Can you just choose not to run those particular passes? I suppose the big >> prob...

...acking required). On Wed, Dec 21, 2016 at 12:12 PM Sean Silva <chisophugis at gmail.com> wrote: > On Wed, Dec 21, 2016 at 8:07 AM, Davide Italiano via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > On Mon, Dec 19, 2016 at 4:24 PM, Mikhail Zolotukhin > > > <mzolotukhin at apple.com> wrote: > > > > Hi Davide, > > > > > > > > Thanks for the analysis, it's really interesting! And I'm really glad > that we now put more and more attention at the compile time! > > > > > > > > Just recently I'...

...otukhin via cfe-dev < > cfe-dev at lists.llvm.org> wrote: > >> Hi Kim, >> >> On Dec 10, 2017, at 7:39 AM, Kim Gräsman <kim.grasman at gmail.com> wrote: >> >> Hi Michael, >> >> On Thu, Dec 7, 2017 at 3:16 AM, Michael Zolotukhin >> <mzolotukhin at apple.com> wrote: >> >> >> Nice to IWYU developers here:) I wonder how hard it would be to run IWYU >> on >> LLVM/Clang (or, if it’s supposed to work, I wonder what I did wrong). >> >> >> There are known problems with running IWYU over LLVM/Clan...