search for: gan

Can you post the source code of your test case? Gan On Fri, Dec 2, 2011 at 1:44 PM, <liyi at cs.toronto.edu> wrote: > Hi, > > Could anyone tell me how exactly do I use "Type Based Alias Analysis"? > > I compiled the C program with Clang, and verified that there is tbaa > metadata in the IR code. > > But the...

...hopefully someone else was able to help out with this? If not let me know and I'll look into re-activating it. I certainly think I would have remembered de-activating you myself if you had done something wrong, so I have no idea what happened here. On Fri, 2023-02-24 at 17:58 -0800, Michael de Gans wrote: > My freedesktop gitlab account?was deactivated and I can't fathom why. I > can't log in and can't reset my credentials. If possible, I'd like to have > it reactivated since I make an occasional contribution to GStreamer. > Apologies if this isn't the place t...

Hi, Could anyone tell me how exactly do I use "Type Based Alias Analysis"? I compiled the C program with Clang, and verified that there is tbaa metadata in the IR code. But then when I use "opt -tbaa input.c.bc -aa-eval" to check the results, it always gives 100% may aliasing no matter what input. Am I using "tbaa" correctly? Thanks. Yi

...like the latter approach. Let me think whether I have time to do it. Do you have any plan to integrate DSA into LLVM mailine, say the 3.0 release? I learned from your previous emails that you are working on this goal. What is the current status? Thank you again for your reply! -- Best Regards Gan

...A3 CA2 MA2 MA1 MA3 1 14 15 13 7 12 3 2 19 7 12 10 14 5 3 21 12 19 6 8 9   to File 2:   ID CA1 CA2 CA3 MA1 MA2 MA3 1 14 13 15 12 7 3 2 19 12 7 14 10 5 3 21 19 12 8 6 9   or File3: ID CA1 MA1 CA2 MA2 CA3 MA3 1 14 12 13 7 15 3 2 19 14 12 10 7 5 3 21 8 19 6 12 9   Thanks for your help, Tul Gan __________________________________________________________________ Ask a question on any topic and get answers from real people. Go to Yahoo! Answers and share what you know at http://ca.answers.yahoo.com [[alternative HTML version deleted]]

...y, cause "pre echos" in compressed audio. Bearing in mind that I know nothing about audio codecs beyond being able to use Perl's Audio::Wav module, have I any hope of accomplishing such a task in Perl with output direct to *.ogg? Where would I start in such a case? Respectfully, Gan Starling, KY8D Kalamazoo MI USA

...nachol a bwriedir ar gyfer y rhai a enwir uchod yn unig. Mae unrhyw farnau a gyflwynir yn eiddo'r awdur a nid ydynt o angenrheidrwydd yn adlewyrchu rhai Coleg Glan Hafren. Os nad chi yw'r derbynnydd a enwir yr ydych wedi derbyn yr e-bost hwn yn anfwriadol, a gwaherddir unrhyw ddefnydd ohono gan gynnwys ei ddosbarthu, ei drosglwyddo, ei argraffu neu ei gopio. O dan y fath amgylchiadau, dylech gael gwared ar y neges a bod mor garedig ? rhoi gwybod i'r anfonydd drwy anfon e-bost yn ?l. Fe brosesir bob e-bost a anfonir i'r cyfeiriad hwn neu allan ohono gan system e-bost Coleg Glan Haf...

...ctice).  There > are reasons for caution in this area. I don't get your point here. What "TBAA rules" are violated by "clang's own source code"? Where does this violation happen? and what caution we should have in this area? Thanks for your reply! -- Best Regards Gan

...big performance bottleneck to other optimization phases, e.g. instruction scheduling, LICM. Can anybody tell me: 1. How to solve the above alias analysis problem in an acceptable short time? 2. Is there any existing project that tries to enhance LLVM alias analysis? Thank you! -- Best Regards Gan

...gyfrinachol ac at ddefnydd yr unigolyn neu sefydliad y cyfeiriwyd hi ato. Pe dderbynioch y neges hon mewn camgymeriad, byddwch mor garedig a rhoi gwybod i'r rheolwr system. Mae'r nodyn hwn hefyd yn cadarnhau bod y neges ebost hon wedi cael ei archwilio am bresenoldeb feirws cyfrifiadurol gan MIMEsweeper. ******************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify...

On Nov 7, 2011, at 10:17 PM, Gan wrote: >> Yes. The current TBAA implementation is conservative, with the idea that it >> can become more aggressive (and with TBAA, this fundamentally means >> "more dangerous") with incremental steps. > > Dan, > > Could you disclose more details about ho...

Dan, Thanks for clarifying. This makes perfect sense. Gan >> Makes sense. In that case, it would give the expected answers if >> clang was enhanced to properly deal with similar/dissimilar pointer >> types, instead of giving all pointer types the "everything" tag :) > > No, you've confused pointer types with pointee...

...gyfrinachol ac at ddefnydd yr unigolyn neu sefydliad y cyfeiriwyd hi ato. Pe dderbynioch y neges hon mewn camgymeriad, byddwch mor garedig a rhoi gwybod i'r rheolwr system. Mae'r nodyn hwn hefyd yn cadarnhau bod y neges ebost hon wedi cael ei archwilio am bresenoldeb feirws cyfrifiadurol gan MIMEsweeper. ******************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify...

On 11/3/11 4:07 PM, Gan wrote: > Hi, > > [snip] > > Since the "Anderson" alias analysis code is already moved out from > LLVM, we can only count > on BasicAA and TBAA for all alias analysis problems at this moment. > But these two piece of code > can only do very limited alias analysis...

...ing the colour bar! Any light shed on this matter would be most appreciated.. Kind regards Ana de Moura Queiros,Ana Filipa osp402 at bangor.ac.uk -- Gall y neges e-bost hon, ac unrhyw atodiadau a anfonwyd gyda hi, gynnwys deunydd cyfrinachol ac wedi eu bwriadu i'w defnyddio'n unig gan y sawl y cawsant eu cyfeirio ato (atynt). Os ydych wedi derbyn y neges e-bost hon trwy gamgymeriad, rhowch wybod i'r anfonwr ar unwaith a dil?wch y neges. Os na fwriadwyd anfon y neges atoch chi, rhaid i chi beidio ? defnyddio, cadw neu ddatgelu unrhyw wybodaeth a gynhwysir ynddi. Mae unrhyw fa...

On 11/4/2011 3:29 AM, Nick Lewycky wrote: > I suspect that GCC is doing option 2, or something else I haven't > thought of (TBAA? if so, why doesn't our TBAA do as well?). Nick, The problem is that LLVM's implementation of TBAA does not distinguish between these two types: i32*** @AAA and i32** %arrayidx. We believe that type based alias analysis should, in general, be able

On Nov 4, 2011, at 8:37 AM, Anshuman Dasgupta wrote: > On 11/4/2011 3:29 AM, Nick Lewycky wrote: >> I suspect that GCC is doing option 2, or something else I haven't >> thought of (TBAA? if so, why doesn't our TBAA do as well?). > > Nick, > > The problem is that LLVM's implementation of TBAA does not distinguish > between these two types: i32*** @AAA

On Mon, Dec 5, 2011 at 11:08 PM, <liyi at cs.toronto.edu> wrote: >> On Dec 5, 2011, at 6:04 PM, Daniel Berlin wrote: >>> >>> Yet, aa-eval still says otherwise. >> >> The problem is with aa-eval. It collects all the pointer values in a >> function, and then just makes a bunch of raw pointer queries, rather than >> considering dereferences. TBAA

On Dec 5, 2011, at 9:32 PM, Daniel Berlin wrote: > On Mon, Dec 5, 2011 at 11:01 PM, Dan Gohman <gohman at apple.com> wrote: >> On Dec 5, 2011, at 6:04 PM, Daniel Berlin wrote: >>> >>> Yet, aa-eval still says otherwise. >> >> The problem is with aa-eval. It collects all the pointer values in a >> function, and then just makes a bunch of raw

On Wed, Apr 22, 2020 at 06:33:13PM -0700, Bo Gan wrote: > On 4/15/20 8:53 AM, Joerg Roedel wrote: > > Hi Mike, > > > > On Tue, Apr 14, 2020 at 07:03:44PM +0000, Mike Stunes wrote: > > > set_memory_decrypted needs to check the return value. I see it > > > consistently return ENOMEM. I've traced that back...