search for: interprocedurally

Hi, I'm looking for interprocedural AAs and have, of course, found https://llvm.org/docs/AliasAnalysis.html. However, the AAs that come bundled with LLVM do not work interprocedurally in a way that I need it (on/with stack variables). The two interesting looking AAs come with the optional `poolalloc' module that hasn't been updated in years (I guess http://lists.llvm.org/pipermail/llvm-dev/2015-February/082054.html never happened). My question: is there currently some...

On Wed, Aug 04, 2004 at 12:16:12PM -0700, Reid Spencer wrote: > So I propose: > [snip] > -O3 = aggressive optimization, regardless of computation time with the > effect of producing the fastest executable I would suggest splitting -O3 into 2 or more levels of optimization, because as written, -O3 sounds pretty scary: "regardless of computation time", and given some

If I turn on one of the llvm interprocedural optimizations without turning on the analysis it uses. will the analysis be turned on automatically ? Thanks Xin

On Tue, Jul 26, 2016 at 3:05 PM Dounia Khaldi via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Thanks for your reply. > > Yes, I was about to recurse over the use list of the argument in the > called function. I did not want to pursue that because with this solution, > I am going to implement the interprocedural part myself and was wondering > if that was not already

On Wed, 2004-08-04 at 12:23, Misha Brukman wrote: > On Wed, Aug 04, 2004 at 12:16:12PM -0700, Reid Spencer wrote: > > So I propose: > > > [snip] > > -O3 = aggressive optimization, regardless of computation time with the > > effect of producing the fastest executable > > I would suggest splitting -O3 into 2 or more levels of optimization, > because as

Hello everyone, I have been interested in compilers, especially in the optimization aspects from quite some time now. I don't know if I have a decent background to brag about, but all I can say is that I have tried very small things related to building a compiler [0]. However I admit that I am still new to a lot of things. Like many others who are interested in compilers, I am interested

Thanks for your reply. Yes, I was about to recurse over the use list of the argument in the called function. I did not want to pursue that because with this solution, I am going to implement the interprocedural part myself and was wondering if that was not already done. I was not also 100% sure that this will work for any type of arguments. If, based on your response, this is my only solution

Hello, I need interprocedural alias analysis while I'm using GVN for infeasible path analysis. So, I've tried "-steens-aa" from poolalloc project, but it doesn't seem to be working as I expected. For example, int global; int bar(void) { return 5; } int foo(void) { int a; scanf("%d", &a); if(global) a = bar(); return a; } In this case, I

Hi Everyone, Can Someone tell me all the interprocedural optimizations that LLVM 2.1 supports. Thank You, Naineet Patel CSE IITB

On Oct 4, 2012, at 2:47 AM, Madhusudan C.S <madhusudancs at gmail.com> wrote: > However, I was reading the DeveloperPolicy page and the policy for making major > changes asks the developers to discuss the work here before proceeding. So, I am > writing this mail to kickoff a discussion. I would really like to contribute to LLVM and > I think this is a good place for me to start.

Hello, I have been using the USE class to access the use-def chains of different values. However, what I have noticed is that the set of users of a particular value is limited for the appearance of that variable in the current function. How can I get the interprocedural use of a particular value? For example, if a variable *a* is used as an argument in a function call *foo*, the USE analysis

On 11/23/07, Fernando Magno Quintao Pereira <fernando at cs.ucla.edu> wrote: > > > Hi, Sanjiv, > > those passes operate on the whole machine function. Each machine > function contains many basic blocks. If a program has many functions, the > register allocator will be called as many times, i.e it does not do > interprocedural allocation. > > best, > >

Dear Jin, I've talked with Vikram, and we agree that having this code (and a dynamic backwards slicing pass that Swarup and I wrote) in a publicly available SVN repository is a good thing. I'll try to get you a copy of the static slicing code some time next week (I should be able to work on it Monday morning) so that you can start working with it right away. I can work on making a

Thanks again. One more question here: Since the regalloc works once per function, do I stil have access to the Call graph? Just saving information between regalloc passes for different functions may not be enough for my case. I will need to maintain the regalloc info of various passes in the call graph order. Anyways thanks for your inputs. I will get back if I need to learn more. Sanjiv On Nov

Hello John et al - I have been struggling to implement static backwards slicing with LLVM. After digging llvmdev postings for some time, I see that other people were having similar difficulties and John's got almost complete code that may be shared. May I get a copy of it, too? Better yet, it would be helpful for many other people if the code were checked in to an example directory or

Dear all, Is anyone aware of any implementation of an inter procedural slicing algorithm for LLVM? I am mostly interested in a static algorithm but a dynamic one can be helpful too. Thanks, Silviu Ganceanu Research Student, Ecole Polytechique Federale de Luasanne -------------- next part -------------- An HTML attachment was scrubbed... URL:

We have done a few class projects on static interprocedural slicing but they are all of "course project" quality. I will put you in touch with some of the students who did those, if you're interested? --Vikram Associate Professor, Computer Science University of Illinois at Urbana-Champaign http://llvm.org/~vadve On Aug 15, 2008, at 8:48 AM, Silviu-Ionut Ganceanu wrote:

Hello, I had a look at the global variable optimizer. In my opinion it handles a few special cases, when global variables can be replaced by local variables or be removed completely. Basically I think that this problem could be solved with an interprocedural live value analysis for global variables more generally. An assignment to a global variable can be removed, if this global variable is dead

There is/are implicit dependency for the optimization on its analysis. So, if you run the optimization, the analysis will be turned on implicitly, through the PassManager. Chuck On 2/12/2012 10:10 AM, Xin Tong wrote: > If I turn on one of the llvm interprocedural optimizations without > turning on the analysis it uses. will the analysis be turned on > automatically ? > > Thanks

http://dl.acm.org/citation.cfm?id=2843863 Luke Jones, Ryan Whelan, Jeremy Blackthorne, and Graham Baker. 2015. Flowtables: Program Skeletal Inversion for Defeat of Interprocedural Analysis with Unique Metamorphism. In Proceedings of the 5th Program Protection and Reverse Engineering Workshop (PPREW-5). ACM, New York, NY, USA, , Article 6 , 11 pages. DOI=http://dx.doi.org/10.1145/2843859.2843863