similar to: Generating a loop from llvm bitcode

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

Hi all, I am trying to use the dependence analyzer in a pass that I am writing and I was surprised to see an incorrect behavior when I try to query DependenceInfo for dependences between instructions. Specifically, if the two instructions are loads/stores accessing an array in a loop, the depend() method would return a dependence regardless of the order of instructions specified. (i.e. if the two

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

Hi, I know most compilers go from AST to CFG. I am writing a decompiler, so I was wondering if anyone knew of any documents describing how best to get from CFG to AST. The decompiler project is open source. https://github.com/jcdutton/libbeauty The decompiler already contains a disassembler and a virtual machine resulting in an annotated CFG. It uses information gained from using a virtual

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 7 May 2012 16:31, John Criswell <criswell at illinois.edu> wrote: > On 5/7/12 5:47 AM, James Courtier-Dutton wrote: >> >> Hi, >> >> I am writing a decompiler. I was wondering if some of LLVM could be >> used for a decompiler. >> There are several stages in the decompiler process. >> 1) Take binary and create a higher level representation of it.

Hi, What does llvm use for testing. The area of testing I am interested in are how to test the accuracy of the assembler/disassembler. So, if you take an IR level instruction. How do you verify that the generated CPU specific instruction is correct? Is there an automated method for this? I wish to implement automated testing on a decompiler I am writing, and thought that the test methods used in

Hi all, I have the file which is assemble, I want to convert it to IR. Are there some tools to do this in LLVM? Thanks, Yao -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130503/d7fd4741/attachment.html>

On 5/7/12 5:47 AM, James Courtier-Dutton wrote: > Hi, > > I am writing a decompiler. I was wondering if some of LLVM could be > used for a decompiler. > There are several stages in the decompiler process. > 1) Take binary and create a higher level representation of it. Like RTL. > 2) The output is then broken into blocks or nodes, each block ends in > a CALL, JMP, RET, or

> -----Original Message----- > On Behalf Of James Courtier-Dutton > To: John Criswell > > On 7 May 2012 16:31, John Criswell <criswell at illinois.edu> wrote: > > On 5/7/12 5:47 AM, James Courtier-Dutton wrote: > >> > >> Hi, > >> > >> I am writing a decompiler. I was wondering if some of LLVM could be > >> used for a

Hi, Simon Moll (in CC) has written a decompiler for LLVM in his Bachelor's Thesis here at Saarland University. The thesis is titled "Decompilation of LLVM IR" and can be found here: http://www.cdl.uni-saarland.de/publications/ The library he implemented is called "Axtor" (for "AST Extractor") and has been used primarily to generate OpenCL code from LLVM. In

Hi, I am writing a decompiler. I was wondering if some of LLVM could be used for a decompiler. There are several stages in the decompiler process. 1) Take binary and create a higher level representation of it. Like RTL. 2) The output is then broken into blocks or nodes, each block ends in a CALL, JMP, RET, or 2-way or multiway conditional JMP. 3) The blocks or nodes are then analyzed for

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]]

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:

To the best of my experience, handling case B (secondary induction) is must-have, and if I’m not mistaken, people aren’t opposed to that. For me, handling case A (primary induction) is “why not?”, but I certainly admit that that can be very naïve thinking coming from lack of good understanding on SCEV and their proper usages. Now, let’s assume we can postpone discussion about case A. What is the

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