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>>You need a set_ogg_malloc_handler(). That's it as far as the API goes. > >Assuming you consider it acceptable to store that information in >global variables. > malloc() is currently a global function, so the situation is unchanged by having a global name that refers to malloc() or a work-alike. Atleast, this very much seems to me to be the case. Of course you actually

Hi Adam, Indvar widening can sometimes be harmful for architectures (e.g. NVPTX and AMDGPU) where wider integer operations are more expensive ( https://llvm.org/bugs/show_bug.cgi?id=21148). For this reason, we disabled indvar widening in NVPTX in http://reviews.llvm.org/D6196. Hope it helps. Jingyue On Mon, Jun 29, 2015 at 11:59 AM Adam Nemet <anemet at apple.com> wrote: > > >

----- Original Message ----- > From: "Bjarke Roune" <broune at google.com> > To: "Jingyue Wu" <jingyue at google.com> > Cc: llvmdev at cs.uiuc.edu > Sent: Tuesday, June 30, 2015 8:16:13 PM > Subject: Re: [LLVMdev] Deriving undefined behavior from nsw/inbounds/poison for scalar evolution > > Hi Adam, > > Jingyue is right. We need to keep

There is PostDominatorTree for determining post-dominance. Even if A post-dominates B and B is executed, that doesn't guarantee that A will be executed. For example, there could be an infinite loop in-between. Strong post-dominance makes the stronger guarantee that there will be no infinite loop from B to A. Do we have anything in LLVM for determining strong post-dominance and in general for

Hi Johannes, Sanjoy has given you great information already. On Sun, Apr 10, 2016 at 5:19 PM, Sanjoy Das <sanjoy at playingwithpointers.com> wrote: > Johannes Doerfert wrote: > > Is there any plan to use e.g., post-dominance information to > > propagate wrapping flags? > > None that I'm aware of. > > > If x +nsw y post-dominates the entry block > >

*** Summary I'd like to propose (and implement) functionality in LLVM to determine when a poison value from an instruction is guaranteed to produce undefined behavior. I want to use that to improve handling of nsw, inbounds etc. flags in scalar evolution and LSR. I imagine that there would be other uses for it. I'd like feedback on this idea before I proceed with it. *** Details Poison

----- Original Message ----- > From: "Bjarke Roune" <broune at google.com> > To: "Hal Finkel" <hfinkel at anl.gov> > Cc: llvmdev at cs.uiuc.edu, "Jingyue Wu" <jingyue at google.com> > Sent: Wednesday, July 1, 2015 2:27:59 PM > Subject: Re: [LLVMdev] Deriving undefined behavior from nsw/inbounds/poison for scalar evolution > >

please add the following diffs to the vorbis/vq dir. - include files changed so things actually compile in new scheme - _ogg_...alloc cleanups caught a half-dozen typos or so - minor Makefile touchup. (stuff is still not tested, but this will compile at least) Would someone with cvs write access commit them for me please? Erik diffs: ------------------------ diff -bBu2r vorbis/vq/Makefile

Hi Duncan, Hi Bjarke, Duncan Sands wrote: > Take a look at libunwind (http://www.hpl.hp.com/research/linux/libunwind/). > Another possibility, very close you yours and currently used by the vmkit > project, is to modify all functions so they return two values, the usual > return value and an additional boolean value indicating whether an exception > was thrown during the call or

Hi Sanjoy, Any update on this? Are there plans to implement this proposal? Thanks, Pankaj -----Original Message----- Date: Fri, 23 Sep 2016 02:09:19 -0700 From: Sanjoy Das via llvm-dev <llvm-dev at lists.llvm.org> To: llvm-dev <llvm-dev at lists.llvm.org>, Andrew Trick <atrick at apple.com>, Dan Gohman <dan433584 at gmail.com>, Hal Finkel <hfinkel at anl.gov>,

Hi Nicolas, On Tue, Mar 3, 2009 at 11:38 AM, Nicolas Geoffray <nicolas.geoffray at lip6.fr> wrote: > > Duncan Sands wrote: >> >> Another possibility, very close you yours and currently used by the vmkit >> project, is to modify all functions so they return two values, the usual >> return value and an additional boolean value indicating whether an >>

> On Aug 8, 2017, at 5:34 PM, Sanjoy Das <sanjoy at playingwithpointers.com> wrote: > > Hi Pankaj, > > IIRC there was pushback on this proposal so I did not proceed further. > Are you blocked on this? > > [+CC Andy, who I remember had some objections.] > > — Sanjoy Off the top of my head, my concern is that expression comparison is no longer constant time,

On 18.10.2016 09:35, Karol Herbst wrote: > how sure are you, that this is needed for _every_ nvac? > Thank you for asking. If you consider, as relevant, referring to the original commit: "drm/nouveau/disp/g94: implement workaround for dvi issue on fx380" https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a4bd8a <quote> Fixes the second DVI output

Hi all, This is about a project I've been prototyping on-and-off for a while that has finally reached a point where I can claim it to be "potentially viable". I'd like to gather some input from the community before moving too far ahead. # The problem There is a representation issue within SCEV that prevents it from fully using information from nsw/nuw flags present in the

Hi Sanjoy, thanks for your thoughts on this. On Sat, Jun 27, 2015 at 12:16 AM, Sanjoy Das <sanjoy at playingwithpointers.com > wrote: > > First of all, going by the "poison causes UB only when observed", SCEV > does not do the right thing currently: [...] > > That seems like a bug? There's also bug 23527 for GEP. Sounds like there might be more such bugs. One

On Thu, Mar 19, 2015 at 10:54 AM, John McKown <john.archie.mckown at gmail.com> wrote: > On Thu, Mar 19, 2015 at 10:46 AM, G?bor Cs?rdi <csardi.gabor at gmail.com> wrote: >> Hi All, >> >> this is a CRAN question, so I am sorry if this is not the appropriate forum. >> >> I noticed that there is at least one CRAN package that has a binary (OSX >>

Dear List: I have the follow code: y <- replicate(10,replicate(8,sum(rnorm(rpois(1,5))))) Now I need to apply the following condition to _every_ randomly generated Normal number in the code above: x - max(0,x-15) + max(0,x-90), where x represents the individual Normal numbers. In other words, the said condition needs to be applied before replicate(...(replicate(...(sum(...))) takes place.

happy new year. a day off is a day to pick up a new project, so I wrestled my way through making ogg vorbis work on macosx. first, libao (not entirely a proper patch, but 2 source file diffs and a diff of a configure'd Makefile to one that works.): http://bolson.org/pub/libao-0.8.2-diff.tar.gz libogg and libvorbis compiled without incident. vorbis-tools were more complicated. I think

happy new year. a day off is a day to pick up a new project, so I wrestled my way through making ogg vorbis work on macosx. first, libao (not entirely a proper patch, but 2 source file diffs and a diff of a configure'd Makefile to one that works.): http://bolson.org/pub/libao-0.8.2-diff.tar.gz libogg and libvorbis compiled without incident. vorbis-tools were more complicated. I think

I was looking at the libvorbis 1.0 SRPM of Mandrakelinux, and it contained some patches which are not included in vorbis 1.1 svn. I'm attaching these patches here, because it could maybe be interesting to include these upstream. (libvorbis-1.1-aliasing.patch is actually a rediffed patch of Mandrakesoft's one for 1.0 against 1.1 svn). The author of these patches is Gwenole Beachesne,