similar to: [LLVMdev] Def_Use chain

Hello all, I am a LLVM newer who want to obtain the use-def chain for all instruction of a sample code, for this purpose i use the following code. ///////////////sample code:///////////////////////// #include <stdlib.h> #include <stdio.h> #include <time.h> #define ARRAY_SIZE 5 int main() { int x, y, holder; int k,z,f,i; z=0; f=0; k=0; for(x = 0; x < ARRAY_SIZE;

Thank you for your reply Yes, I change them, so what should I do for another loops? On Mon, Dec 12, 2011 at 7:54 PM, neda 8664 <neda8664 at gmail.com> wrote: > Thank you for your reply > > Yes, I change them, so what should I do for another loops? > > On Mon, Dec 12, 2011 at 7:42 PM, John Criswell <criswell at illinois.edu>wrote: > >> On 12/12/11 9:59 AM,

hi all, I want access to all basic blocks of function in a loop, so I used the following code: *bool parallel::runOnLoop(Loop *L, LPPassManager &LPM) { for (Function::iterator bi= func->begin(); bi != func->end(); bi++){ // } }* First loop run without problem, but for second loop I get the following error: *0 libLLVM-2.9.so 0x0137d530 1 libLLVM-2.9.so 0x0137fa6c 2

On 12/12/11 10:25 AM, neda 8664 wrote: > > Thank you for your reply > > Yes, I change them, so what should I do for another loops? I don't really know what you should do since I don't know what your code does. All I know is that it's changing the function's control-flow graph. If you're not modifying the structure of the loops in the function, then you can

Hi, All I want to implement DSWP Which is used for parallelization of loops. For this purpose, the loop was replaced with a new basic block in main function. And new functions were created and basic blocks of Loop assigned to them.I have checked blocks and branches for Succ and Pred relation and I have not found any problems. However I get the following error: * **opt:

I am changing structure of loops, I used std::vector<> but i get same error, I can’t use FunctionPass :( On Mon, Dec 12, 2011 at 8:03 PM, John Criswell <criswell at illinois.edu>wrote: > On 12/12/11 10:25 AM, neda 8664 wrote: > > Thank you for your reply > Yes, I change them, so what should I do for another loops? > > > I don't really know what you should

I want automatically parallelize sequential program in thread level to run on multi-core processors with software pipelining and use llvm. is it a suitable tools in this project ? can you help me in this topic? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110128/b84ebf3d/attachment.html>

I've study their work carefully. My problem is the implementation of threads in llvm after partitionning. I want to have information about how to implement producer/consumer thread in llvm. I do not know where I should start in llvm for code generation and create thread and insert produce and consume statement . -------------- next part -------------- An HTML attachment was scrubbed... URL:

The current BasicCallGraph will miss call sites like this: %tmp86 = call i8* (...)* bitcast (i8* ()* @find_ispell to i8* (...)*)( ) ; <i8*> [#uses=1] Here the direct user of @find_ispell is a ConstantExpr. I added several lines of code to address this case. Below is the output of command: svn diff lib/Analysis/IPA/CallGraph.cpp Attached is LLVM asm files with such function calls.

Say I want to find all LLVM Value*-es that a live on exit from a basic block. What's the best way? - The 'LiveRange', 'LiveVariables' and 'LiveIntervals' classes seem to be tied to register allocation. - The ./lib/Target/SparcV9/LiveVar/FunctionLiveVarInfo.h file seem to provide what I need, but it's no a public header. - Volodya

i could not use profile.pl, however i did reinstall the llvm but didn't solve my problem. is there is another way to extract profilling information in llvm? i have another question, i want know how can estimate execution time for each operand such as mul ,add, ... ? -------------- next part -------------- An HTML attachment was scrubbed... URL:

On Wed, 11 May 2005, Alkis Evlogimenos wrote: > On Wed, 2005-05-11 at 13:17 -0500, Chris Lattner wrote: >> On Wed, 11 May 2005, Vladimir Prus wrote: >>> Say I want to find all LLVM Value*-es that a live on exit from a basic block. >>> What's the best way? >>> >>> - The 'LiveRange', 'LiveVariables' and 'LiveIntervals' classes

On Thu, 12 Jul 2007, Zhongxing Xu wrote: > The current BasicCallGraph will miss call sites like this: > %tmp86 = call i8* (...)* bitcast (i8* ()* @find_ispell to i8* (...)*)( ) > ; <i8*> [#uses=1] > > Here the direct user of @find_ispell is a ConstantExpr. > I added several lines of code to address this case. > Below is the output of command: svn diff

Hi folks, I would like to find out the machine instructions that use some given registers in the reverse order, and I came across these iterators (use_iterator/reg_iterator). However, there are two things I noticed: 1) These iterators seem to traverse the machine function a bit differently from what I get from the machine function dump. In other words, the use_iterator list is not constructed in

Forgot cc, the entire group. How can deterministically iterate over the uses of a variable. i.e. the uses should be any particular order that doesn't change from execution to execution of the opt tool. To make myself more clearer, here is a snippet of code that has Values reordered each time I analyze a particular piece of code(which doesn't change) with the LLVM opt tool and my LLVM

I am doing inter-procedural static analysis, so I need to do DFS of call graph. llvm-gcc sometimes generates this kind of call instruction, which cause the call graph to be incomplete. But thanks for your information, instcombine really solves the problem. On 7/17/07, Chris Lattner <sabre at nondot.org> wrote: > > On Thu, 12 Jul 2007, Zhongxing Xu wrote: > > The current

In LiveIntervals::processImplicitDefs() we have this: for (MachineRegisterInfo::use_iterator UI = mri_->use_begin(Reg), UE = mri_->use_end(); UI != UE; ) { MachineOperand &RMO = UI.getOperand(); MachineInstr *RMI = &*UI; ++UI; MachineBasicBlock *RMBB = RMI->getParent(); if (RMBB == MBB) continue; const

Thanks a lot for your help Matthijs! :) basically this does the job quite nicely I think: for (llvm::GlobalVariable::use_iterator U = gv->use_begin(); U != gv->use_end(); ++U) { llvm::Instruction *I = llvm::cast<llvm::Instruction>(U); I->replaceAllUsesWith(constPtr); I->eraseFromParent(); } Cheers, Ralf Matthijs Kooijman wrote: > Hi Ralf, > > >> I

Hi, I try to iterate over all uses of a Function with the following code (simplified): for (Value::use_iterator UI = F->use_begin(), UE = F->use_end(); UI != UE; ++UI) { if (CallInst* I = dyn_cast<CallInst>(*UI)) { // do something interesting } } This works on Linux, but on Windows the dyn_cast fails, even though the only use of F in that

hi I changed llvm-prof and make it, but when use profile.pl ,i could not see any change in result. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110907/fc9be189/attachment.html>