search for: bougacha

On 27 February 2015 at 21:26, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > Which brings us to my fallback proposal: what about disabling the > pass on darwin only? That's a decision for Jim/Evan. I'm ok if they are. > As for other targets, as a first step, making the pass run under -O3 > rather than -O1...

...- http://llvm.org/bugs/show_bug.cgi?id=22413 And that's pretty much it for internal changes. I'm fine with flipping the switch; Quentin, are you? Also, just to have an idea, do you (or someone else!) plan to tackle these in the near future? -Ahmed On Thu, Jan 29, 2015 at 11:50 AM, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > > On Wed, Jan 28, 2015 at 4:47 PM, Chandler Carruth <chandlerc at gmail.com> > wrote: > >> >> On Wed, Jan 28, 2015 at 4:05 PM, Ahmed Bougacha <ahmed.bougacha at gmail.com >> > wrote: >> >>> Hi Cha...

On Fri, Feb 27, 2015 at 2:01 PM, Renato Golin <renato.golin at linaro.org> wrote: > On 27 February 2015 at 21:26, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: >> Which brings us to my fallback proposal: what about disabling the >> pass on darwin only? > > That's a decision for Jim/Evan. I'm ok if they are. Jim, thoughts? > >> As for other targets, as a first step, making the...

> On Feb 27, 2015, at 2:15 PM, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > > On Fri, Feb 27, 2015 at 2:01 PM, Renato Golin <renato.golin at linaro.org> wrote: >> On 27 February 2015 at 21:26, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: >>> Which brings us to my fallback proposal: what...

I may get one or two in the next month, but not more than that. Focused on the pass manager for now. If none get there first, I'll eventually circle back though, so they won't rot forever. On Jan 30, 2015 11:21 AM, "Ahmed Bougacha" <ahmed.bougacha at gmail.com> wrote: > I filed a couple more, in case they're actually different issues: > - http://llvm.org/bugs/show_bug.cgi?id=22412 > - http://llvm.org/bugs/show_bug.cgi?id=22413 > > And that's pretty much it for internal changes. I'm fin...

...the AArch64CollectLOH-pass information and a linker that makes use of that information could affect the profitability of the GlobalMerge pass? Thanks, Kristof > -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of Ahmed Bougacha > Sent: 26 February 2015 01:13 > To: LLVM Dev > Subject: Re: [LLVMdev] [RFC] AArch64: Should we disable GlobalMerge? > > With the numbers! > -Ahmed > > > On Wed, Feb 25, 2015 at 4:57 PM, Ahmed Bougacha > <ahmed.bougacha at gmail.com> wrote: > > Hi all, &...

On Wed, Mar 4, 2015 at 10:49 AM, Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > On Wed, Mar 4, 2015 at 10:26 AM, Ryan Taylor <ryta1203 at gmail.com> wrote: >> Yes, it is breaking during the legalize phase, depending on which >> TargetLowering callback method we use. For example, Custom will let it >> thro...

On Fri, Feb 27, 2015 at 3:51 PM, Eric Christopher <echristo at gmail.com> wrote: > > > On Fri, Feb 27, 2015 at 3:48 PM Ahmed Bougacha <ahmed.bougacha at gmail.com> > wrote: >> >> On Fri, Feb 27, 2015 at 3:13 PM, Quentin Colombet <qcolombet at apple.com> >> wrote: >> > To be precise, GlobalMerge is registered as a pre-ISel pass, but still >> > it runs very early in the pipeline, b...

Hi all, This is covered by (struct-path aware) TBAA, but BasicAA disagrees. See the attached testcase, where it prevents us from removing the redundant load. For arbitrary GEPs, we can't decide based on constant indices (because of e.g., &A[0][1] and &A[1][0], with *A a one-element array). BasicAA has some logic to "try to distinguish something like &A[i][1] against

On Mon, Feb 2, 2015 at 10:59 AM, Chandler Carruth <chandlerc at google.com> wrote: > > On Mon, Feb 2, 2015 at 10:55 AM, Ahmed Bougacha <ahmed.bougacha at gmail.com> > wrote: > >> Ah yes, the structs are what make it messy. >> >> How about the more useful constraint: >> - the (identical) base must point to a (possibly multidimensional) array >> of structs. >> >> Then, the above...

On 3/12/15 8:14 PM, Daniel Dilts wrote: > On Thu, Mar 12, 2015 at 6:33 PM, Ahmed Bougacha > <ahmed.bougacha at gmail.com <mailto:ahmed.bougacha at gmail.com>> wrote: > > > On Thu, Mar 12, 2015 at 05:44:02PM -0700, Daniel Dilts wrote: > >> Does there exist a tool that could lift a binary (assembly for some > >> supported target) to LL...

On Fri, Feb 27, 2015 at 1:38 PM Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > On Thu, Feb 26, 2015 at 2:33 AM, Kristof Beyls <kristof.beyls at arm.com> > wrote: > > > > Hi Ahmed, > > > > Did you run these experiments on a platform with a linker that makes > > use of the AArch64CollectLOH-...

...s pretty much the description of -O3. We can still run into problematic cases under LTO, though. -Ahmed > > Thanks, > > Kristof > > > -----Original Message----- > > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > > On Behalf Of Ahmed Bougacha > > Sent: 26 February 2015 01:13 > > To: LLVM Dev > > Subject: Re: [LLVMdev] [RFC] AArch64: Should we disable GlobalMerge? > > > > With the numbers! > > -Ahmed > > > > > > On Wed, Feb 25, 2015 at 4:57 PM, Ahmed Bougacha > > <ahmed.bouga...

...t 11:58 AM, Ryan Taylor <ryta1203 at gmail.com> wrote: > I'm still not sure why copysign and fabs have to be lowered to a call when > they are represented as a call in the IR? > > Looks like the DAG makes them into SDNodes. > > > On Thu, Jun 9, 2016 at 2:35 PM, Ahmed Bougacha <ahmed.bougacha at gmail.com> > wrote: > >> On Thu, Jun 9, 2016 at 11:28 AM, Ryan Taylor <ryta1203 at gmail.com> wrote: >> > I'm assuming that "__builtin_" is a keyword in LLVM. If I have code >> like: >> > >> > #define acos __b...

my compiler gave me a warning in MCObjectDisassembler.cpp. it found a self-comparation in loop condition. I think it's a typo. the suspicious code was introduced by this patch: >From f176482752fbea3139394e280adfb10270dd3aac Mon Sep 17 00:00:00 2001 From: Ahmed Bougacha <ahmed.bougacha at gmail.com> Date: Wed, 21 Aug 2013 07:28:55 +0000 Subject: MC CFG: Support disassembly at arbitrary addresses in MCObjectDisassembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk at 188889 91177308-0d34-0410-b5e6-96231b3b80d8 please review "SE != SE&quot...

...ers/clang-cmake-mips/builds/9387 ) - does anyone know/care about it? ---------- Forwarded message ---------- From: <llvm.buildmaster at lab.llvm.org> Date: Wed, Sep 30, 2015 at 7:49 PM Subject: buildbot failure in LLVM on clang-cmake-mips To: Adrian Prantl <aprantl at apple.com>, Ahmed Bougacha < ahmed.bougacha at gmail.com>, Bob Wilson <bob.wilson at apple.com>, David Blaikie <dblaikie at gmail.com>, Davide Italiano <davide at freebsd.org>, Dehao Chen < dehao at google.com> Cc: gkistanova at gmail.com The Buildbot has detected a new failure on builder clan...

...now ( http://lab.llvm.org:8011/builders/llvm-mips-linux/builds/14658 ) - is anyone watching it/caring about it? ---------- Forwarded message ---------- From: <llvm.buildmaster at lab.llvm.org> Date: Wed, Sep 30, 2015 at 11:34 PM Subject: buildbot failure in LLVM on llvm-mips-linux To: Ahmed Bougacha <ahmed.bougacha at gmail.com>, Chad Rosier < mcrosier at codeaurora.org>, 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...

On Wed, Jan 28, 2015 at 4:47 PM, Chandler Carruth <chandlerc at gmail.com> wrote: > > On Wed, Jan 28, 2015 at 4:05 PM, Ahmed Bougacha <ahmed.bougacha at gmail.com> > wrote: > >> Hi Chandler, >> >> I've been looking at the regressions Quentin mentioned, and filed a PR >> for the most egregious one: http://llvm.org/bugs/show_bug.cgi?id=22377 >> >> As for the others, I'm workin...

...gen/S2E, Fracture, Dagger (my own), libcpu, several closed-source ones used by pentest shops, some that use another representation before going to IR (say llvm-qemu), and probably others still I forgot about. Are you interested in a specific target / use case? > http://llvm.org/devmtg/2013-04/bougacha-slides.pdf > might be a starting point. Note that after a hiatus I've been slowly revamping Dagger (more to come), making the implementation parts of the slides tremendously out-of-date (it doesn't help that, at the time, I was a kid with a laptop and a dream - not to say I'm much m...

...- does > anyone know/care about it? > > ---------- Forwarded message ---------- > From: <llvm.buildmaster at lab.llvm.org> > Date: Wed, Sep 30, 2015 at 7:49 PM > Subject: buildbot failure in LLVM on clang-cmake-mips > To: Adrian Prantl <aprantl at apple.com>, Ahmed Bougacha < > ahmed.bougacha at gmail.com>, Bob Wilson <bob.wilson at apple.com>, David > Blaikie <dblaikie at gmail.com>, Davide Italiano <davide at freebsd.org>, Dehao > Chen <dehao at google.com> > Cc: gkistanova at gmail.com > > > The Buildbot has detect...