similar to: [LLVMdev] Generating target dependent function calls

On Wed, Dec 22, 2010 at 01:38:06PM -0500, Tobias Grosser wrote: > Hi, > > raghesh and I are working in Polly on automatically generating OpenMP > calls. This works nicely on a 64bit architecture, > however the functions we need to generate are slightly different on > different platforms. > > The reason for the difference is that e.g "long" in > > >

On 12/22/2010 03:12 PM, Peter Collingbourne wrote: > On Wed, Dec 22, 2010 at 01:38:06PM -0500, Tobias Grosser wrote: >> Hi, >> >> raghesh and I are working in Polly on automatically generating OpenMP >> calls. This works nicely on a 64bit architecture, >> however the functions we need to generate are slightly different on >> different platforms. >>

>>> >>> >>> The reason for the difference is that e.g "long" in >>> >>>> bool GOMP_loop_runtime_next(long, long) >>> >>> has a different size on different architectures. >>> >>> Currently we generate the prototypes and functions ourselves: >>>> declare i8 @GOMP_loop_runtime_next(i64*,

On 12/26/2010 01:31 AM, Eric Christopher wrote: >>>> >>>> >>>> The reason for the difference is that e.g "long" in >>>> >>>>> bool GOMP_loop_runtime_next(long, long) >>>> >>>> has a different size on different architectures. >>>> >>>> Currently we generate the prototypes and

On 03/22/2011 01:56 PM, Reid Kleckner wrote: > On Tue, Mar 22, 2011 at 1:36 PM, Gokul Ramaswamy > <gokulhcramaswamy at gmail.com <mailto:gokulhcramaswamy at gmail.com>> wrote: > > Hi Duncan Sands, > > As I have understood, GOMP and OpenMP provides support for > parallelizing program at source program level. But I am at the IR > level. That

Dear all, I am Raghesh, a student pursuing M.Tech at Indian Institute of Technology, Madras, India. I would like to make contribution to the Polly project (http://wiki.llvm.org/Polyhedral_optimization_framework) as part of GSOC 2011. I have gained some experience working in OpenMP Code generation for Polly. This is almost stable now and planning to test with the polybench benchmarks. Some of

Hi Alexandra, I don't know much, maybe this topic should be bridged with polly-dev (adding it to CC) to bring it more attention. Indeed, polly uses ScopPass, that creates serious limitations in compatibility with other passes. To my understanding, scops are used because ISL loop analysis tool uses scops. In fact, just for handling OpenMP directives scops are not required, unless one need to

On 01/16/2012 03:04 AM, Vlad Krylov wrote: > I am interested. I would be grateful for your hints. Great. ;-) > So OpenMP has various constructs such as parallel, barrier, single, > for, etc. And there is at least two libraries to generate OpenMP code: > libgomp and mpc. We want to be independent of specific library. True. > We should create an interface with methods which

I am interested. I would be grateful for your hints. So OpenMP has various constructs such as parallel, barrier, single, for, etc. And there is at least two libraries to generate OpenMP code: libgomp and mpc. We want to be independent of specific library. We should create an interface with methods which present manual inserting of OpenMP pragmas in C or Fortran code. These sounds like "this

On 10/19/2010 05:50 AM, Gautam B.T. wrote: > Hello, > > I am a masters student interested in parallelization API's and auto > parallelization. I have been following LLVM's development for some time now > and would like to make a contribution. In particular I am interested in > adding > OpenMP support for LLVM. I believe this will be useful both for clang as > well

Hi, I am looking into something similar as well for auto-parallelization i.e. some sort of low level support at the IR level for parallelization. I'd be interested in collaborating with anyone who is working on the same. >From a brief look at the architectural overview of Polly, it seems as if the parallel code generation is being done at the IR level since the input file is an LLVM IR

Hello, > I propose to take a look at the mpc project, which has a LGPL licensed > OpenMP library. The explanations how to use MPC OpenMP directly are in a > header file called mpcomp_abi.h located inside the > mpc/MPC_OpenMP/include directory. I had a look at MPC's OpenMP and it seems to be both well written and suited for this purpose. Thanks for the pointer. I will update the

On 07/04/2012 10:35 AM, Raghavendra, Prakash wrote: > Hi > > I wanted to know the status of OpenMP (or in general auto > parallelization) support in > > LLVM. > > I read some threads discussing about possible effort in that direction > in 3.1 onwards, > > but did not see any further discussion on that. > > If someone in the list knows the updated info or can

Hi, I want to execute the iterations of a loop in parallel, by inserting calls either to pthreads or to the gomp library at the LLVM IR level. As a first step, I inserted an omp pragma in a C file and compiled it with llvm-gcc to check the generated LLVM code. If I understand correctly, to parallelize the loop in LLVM IR, I have to separate the loop in a new function, put all required parameters

Hello, I am a masters student interested in parallelization API's and auto parallelization. I have been following LLVM's development for some time now and would like to make a contribution. In particular I am interested in adding OpenMP support for LLVM. I believe this will be useful both for clang as well as LLVM Polly. I would like to know if anyone is already working on this. Any

Hi, In fact I have some theory on instruction level parallelism( i have a partitioning algorithm), then first of all, i want to generate a multithreaded code from LLVM IR (in assembly level) with a given partitioning. My problem is how can i use a thread library(like Pthread) or OS system calls in LLVM IR to create and manage threads? --- On Tue, 10/5/10, Tobias Grosser <grosser at

On 01/07/2012 12:38 AM, Vlad Krylov wrote: > Hi, > > It was proposed to implement OpenMP framework. > Is there any progress in this area? Was the question raised at the > Euro-LLVM? Does anybody work on implementation? I am not aware of any work that was done or is planned to be done in public. At Euro-LLVM I had a short discussion with Alexandra about targeting the OpenMP run

Hi I wanted to know the status of OpenMP (or in general auto parallelization) support in LLVM. I read some threads discussing about possible effort in that direction in 3.1 onwards, but did not see any further discussion on that. If someone in the list knows the updated info or can point me to any useful info, that would be useful. Thanks Regards Prakash Raghavendra -------------- next part

On 03/23/2011 09:58 PM, ether zhhb wrote: > hi raghesh, > > >> >> 5. Porting Polly to Various architectures. >> ------------------------------------------------- >> >> Currently Polly generates everything as 64 bit integer, which is >> problamatic for embedded platforms. >> > you may try something like this: >

Is your case the case mentioned in the subject or a different case? ~Craig On Sun, Jan 5, 2020 at 8:11 PM raghesh <raghesh.a at gmail.com> wrote: > Thanks Sanjay for your comments. > > So, if we want to add a transformation avoiding the one-use check, which > one is the ideal pass? Shall we do it in -aggressive-instcombine? I came > to know that if the pattern search