similar to: Incorrect behavior in the LLVM dependence analyzer

Hello With the legacy pass manager, we could invoke a Function Pass within the runOnModule() of a Module Pass by simply passing the Function reference to the getAnalysis<>() method. Can the same be achieved using the new Pass Manager? I am writing a Module Pass which requires to access analyses for the different functions, and I need the new pass manager because I need different copies of

Hello All I am looking for an LLVM pass that is able to detect branches whose condition is known if they are reached. To illustrate what I mean, I attached a screenshot showing a partial CFG of a function. The branch in basic block for.cond.cleanup3 tests the same condition as the branch in the entry block, and has the same target BB if the condition is false. Also, if you inspect the graph

Hello I am developing a backend that generates OpenCL from llvm bitcode. I start with a revived fork of the original LLVM C-Backend and have been modifying it. One thing that the backend lacked was generating proper loop structures; instead it relied on labels and goto statements. Therefore, I am trying to find a way to identify the loop structure and print it out in the backend. So far, the main

Hi All I am writing a pass which requires checking dependences, and am having trouble dealing with function calls. Specifically, I want to be able to know when a called function does not have any side effects (e.g. math library functions like sqrt), and was wondering if there are attributes that specify this behavior (I know there is the ‘noread’ attribute but wasn’t sure if there’s something

On 4/29/20 4:12 PM, Reid Kleckner via llvm-dev wrote: > On Tue, Apr 28, 2020 at 12:58 PM Ejjeh, Adel via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> Specifically, I want to be able to know when a called function does not >> have any side effects (e.g. math library functions like sqrt) >> > > Apologies for the pedantry, but I believe sqrt may

On 03/23, Hongbin Zheng wrote: > Hi Johannes, > > On Mon, Mar 21, 2016 at 6:35 PM, Johannes Doerfert < > doerfert at cs.uni-saarland.de> wrote: > > > Hey Utpal, > > > > First of, I think you made nice process here and have some very good > > ideas of what we could do in the future. > > > > [NOTE: I CC'ed some people that have shown

Hey Utpal, First of, I think you made nice process here and have some very good ideas of what we could do in the future. [NOTE: I CC'ed some people that have shown interest in this topic but I might have forgotten some, therefor I also added the llvm-dev list.] For the upcoming GSoC proposal we should slow down a little bit and reevaluate our goals. After talking to a couple of LLVM and

Am Mi., 18. März 2020 um 18:15 Uhr schrieb Chawla, Pankaj <pankaj.chawla at intel.com>: > > >> DependenceInfo is not using the AA interface correctly. Either DI has to be fixed, or another method added to AA that gives additional guarantees. Please see the bug report for details. > > Thanks for updating the bug report but GetUnderlyingObject() doesn't help in this case.

In the design the LLVM passes always directly communicate with PolyhedralInfo, this requires Polly tightly integrate in to LLVM. If we do not want a tight integration, we can do the following: 1. Introduce an abstract memory dependency query interface, like AliasAnalysis 2. I remember LLVM had already have dependency analysis, this can be the default implementation of the memory dependency query

Hi ether, Your suggestion is appropriate with respect to LLVM framework. However, I am not aware of such a common interface for Dependence Analysis as there is one for AliasAnalysis. The current plan is to provide the new Dependence Analysis interface that can be used when the other analysis engines fail to provide a concrete result. I do not want to overestimate things by proposing such a common

As far Am Mi., 18. März 2020 um 11:34 Uhr schrieb Chawla, Pankaj <pankaj.chawla at intel.com>: > >> There seems to be a bug in DI, see Felipe's answer. > Maybe I missed something. There seems to be no resolution to the problem. How can DA fix this without help from alias analysis? DependenceInfo is not using the AA interface correctly. Either DI has to be fixed, or another

Hi Johannes, On Mon, Mar 21, 2016 at 6:35 PM, Johannes Doerfert < doerfert at cs.uni-saarland.de> wrote: > Hey Utpal, > > First of, I think you made nice process here and have some very good > ideas of what we could do in the future. > > [NOTE: I CC'ed some people that have shown interest in this topic but I > might have forgotten some, therefor I also added the

Dear All, I am glad to be part of GSoC 2016 with LLVM organization. I am a first year PhD student at IIT Hyderabad, India and my research area is compiler optimizations using polyhedral model. My GSoC 2016 project is to implement Polly as an Analysis pass in LLVM [1]. We have a discussion on Polly-dev mailing list [2] on taking a better approach to implement this project. Based upon this

Hello, How can I make a monte carlo simulation on R? Regards Adel -- PhD candidate in Computer Science Address 3 avenue lamine, cité ezzahra, Sousse 4000 Tunisia tel: +216 97 246 706 (+33640302046 jusqu'au 15/6) fax: +216 71 391 166 [[alternative HTML version deleted]]

Hello, is ot possible to draw two ecdf of vectors (say s1 and s2) on the same figire with R. plot function draws a new plot and there is no function like points or lines to draw a second ecdf on the figure. Regards -- *PhD candidate in Computer Science Address 3 avenue lamine, cité ezzahra, Sousse 4000 Tunisia tel: +216 97 246 706 fax: +216 71 391 166* [[alternative HTML version deleted]]

Dear R users, Is it possible to add comments in a plot window? I have 3 plots -> this plots have to be commented on same window Is possible to do the following : http://www.nabble.com/file/p18193822/plot%2526comments.JPG plot%26comments.JPG I don't know how to do it. Maybe plot.window or something like that. Any suggestions?? Thanks in advance, Adel. -- View this message in context:

Dear R users, I want to read a file like following : if it is a table then z <- read.table(pathname, dec=".", header=TRUE) else if it's not a table (image,doc,...) then send an error or something like that acually I have a read.table in the beginnig of my R code, and if my data is not a table I become in my R console : fail in scan. So the question is how to check the nature of

Hi list I am a new user of R. I ask for some "beginner" question I am searching if there is any function that computes the variation of some discrete values of a vector (mean() and sd() exists, but i have not find variation). Thanks in advance Adel -- PhD candidate in Computer Science Address 3 avenue lamine, cité ezzahra, Sousse 4000 Tunisia tel: +216 97 246 706 (+33640302046

Hello, I have a file with very big values. I want to display the real values with classic ways (without exposant) > summary(a[,1]); Min. 1st Qu. Median Mean 3rd Qu. Max. 1.198e+09 1.199e+09 1.200e+09 1.200e+09 1.201e+09 1.202e+09 Can you help please? Regards Adel -- PhD candidate in Computer Science Address 3 avenue lamine, cité ezzahra, Sousse 4000 Tunisia tel:

Hi list I need some help for drawing some histograms I have a dataframe , say, X Y Z T I want to draw a histogram Z-T for each value of the couple (X-Y). When I use thus syntax > library(lattice) > histogram(law[,3] ~ law[,66] | law[,1] ) it draws multiple histograms but by selecting distinct values of law[,1] The deal is to make the same thing but for a couple of columns Thanks in