[LLVMdev] LoadInst result

[nizam at cse.iitm.ac.in]

Thanks Sean. It clarified my query. 


Do you have an answer to my other question (in a different mail-chain) listed below 




Is there a simple way to check if a given instruction operand (represented by Value *) is a virtual register or otherwise? Context: I am creating a ModulePass for pointer Analysis. 




BR/Nizam 


From: "Sean Silva" <chisophugis at gmail.com> 
To: nizam at cse.iitm.ac.in 
Cc: "llvmdev" <llvmdev at cs.uiuc.edu> 
Sent: Monday, February 3, 2014 8:24:00 AM 
Subject: Re: [LLVMdev] LoadInst result 


Related: < http://llvm.org/docs/FAQ.html#what-api-do-i-use-to-store-a-value-to-one-of-the-virtual-registers-in-llvm-ir-s-ssa-representation > 


-- Sean Silva 



On Sat, Feb 1, 2014 at 3:43 AM, < nizam at cse.iitm.ac.in > wrote: 




Folks, 


I have a LLVM instruction like the following 



%0 = load i32** %pp, align 8 


I have a LoadInst &inst handle to this instruction. In addition, i could access the pointer being loaded from using the inst.getPointerOperand... 


However, is there a way to access the handle to the value being loaded? Essentially, i wanted to access the %0 in the statement listed. 


The end goal is to do some amount of points-to analysis. I have this pointer %pp being loaded into %0 and later i have a store instruction storing %0 into some other pointer. If i cannot establish the %0 link here, i would not be able to establish points-to. 


Any help in this regards would be appreciated. Thanks 


BR/Nizam 





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