llvm dev - Jan 2012 - [LLVMdev] AliasAnalysis and memory dependency

Hi all,


  I want to find memory dependency between CallInst instruction and other.
So i used the following code:



*    AliasAnalysis &AA=getAnalysis<AliasAnalysis>();*

*   if(isa<StoreInst>(inst1)){*

* **     **if(isa<CallInst>(inst2))**{*

*          CallInst *call_inst2= dyn_cast<CallInst>(inst2); *

*         if(AA.getModRefInfo(inst1,call_inst2)==mod)**{*

*             //*

*         } *

*     }*

*  }*

 but i get the following error. I should what do for exrtact memory
dependency between CallInst instruction and other.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120103/67edf811/attachment.html>

Hi neda 8664,
> I want to find memory dependency between CallInst instruction and other. So
i
> used the following code:
>
>
>
> /    AliasAnalysis &AA=getAnalysis<AliasAnalysis>();/
>
> /*if* (isa< StoreInst >(inst1)){ /
>
> // // /*if* (isa<CallInst>(inst2)) / /{/
>
> /          CallInst *call_inst2= dyn_cast<CallInst>(inst2); /
>
> /*if* (AA.getModRefInfo(inst1,call_inst2)==mod) / /{/
>
> /             ///
>
> /         } /
>
> /     }/
>
> /  }/
>
> but i get the following error. I should what do for exrtact memory
dependency
> between CallInst instruction and other.
you forgot to include the error.

Ciao, Duncan.

i am sorry,
i get this error:

opt: /home/llvm/src/include/llvm/Support/CallSite.h:87: ValTy*
llvm::CallSiteBase<FunTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy,
IterTy>::getCalledValue() const [with FunTy = const llvm::Function, ValTy
const llvm::Value, UserTy = const llvm::User, InstrTy = const
llvm::Instruction, CallTy = const llvm::CallInst, InvokeTy = const
llvm::InvokeInst, IterTy = const llvm::Use*]: Assertion `getInstruction()
&& "Not a call or invoke instruction!"' failed.

0  opt             0x08537540
1  opt             0x08539a7c
2  libpthread.so.0 0x0080b878
3  libc.so.6       0x0069464a abort + 378
4  libc.so.6       0x0068bde8 __assert_fail + 248
5  opt             0x082b3063
6  opt             0x082b7cad
llvm::AliasAnalysis::getModRefInfo(llvm::ImmutableCallSite,
llvm::ImmutableCallSite) + 61
7  opt             0x082b22e4
8  parallel.so     0x04a5c7c6 parallel::buildDataGraph(llvm::Loop*) + 1542
9  parallel.so     0x04a54e24 parallel::runOnLoop(llvm::Loop*,
llvm::LPPassManager&) + 452
10 opt             0x0831a124
llvm::LPPassManager::runOnFunction(llvm::Function&) + 1156
11 opt             0x084c3aa1
llvm::FPPassManager::runOnFunction(llvm::Function&) + 545
12 opt             0x084c3bb7
llvm::FPPassManager::runOnModule(llvm::Module&) + 87
13 opt             0x084c35c5
llvm::MPPassManager::runOnModule(llvm::Module&) + 517
14 opt             0x084c376b llvm::PassManagerImpl::run(llvm::Module&) +
171
15 opt             0x084c386d llvm::PassManager::run(llvm::Module&) + 45
16 opt             0x080ed5df main + 5295
17 libc.so.6       0x0067ecc6 __libc_start_main + 230
18 opt             0x080e2201
Stack dump:
0.    Program arguments: opt -dse -lda -memdep -basicaa -libcall-aa
-scev-aa -globalsmodref-aa -load
/home/llvm/src/Release+Profile+Asserts/lib/parallel.so -parallel -dot-cfg
obj.o -o out.o
1.    Running pass 'Function Pass Manager' on module 'obj.o'.
2.    Running pass 'Loop Pass Manager' on function
'@write_circulations'
3.    Running pass 'parallel World Pass' on basic block '%bb17'
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120103/cb72be88/attachment.html>