similar to: [LLVMdev] How to retrieve IntToPtr from StoreInst?

On 4/18/13 9:56 AM, Jun Koi wrote: > hi, > > i am writing a simple LLVM pass to analyze the Store instruction. > my pass derives from InstVisitor class, and the method to handle Store > instruction is like this: > > void MyPass::visitStoreInst(StoreInst &I) { > ... > } > > It is pretty simple to handle Store. however, in on test i got an > instruction like

On Thu, Apr 18, 2013 at 11:11 PM, John Criswell <criswell at illinois.edu>wrote: > On 4/18/13 9:56 AM, Jun Koi wrote: > > hi, > > i am writing a simple LLVM pass to analyze the Store instruction. > my pass derives from InstVisitor class, and the method to handle Store > instruction is like this: > > void MyPass::visitStoreInst(StoreInst &I) { > ... >

Hi.All I had a problem in using llvm::InstVisitor class, my pass is like that: using namespace llvm; namespace { class InstVisit : public ModulePass, public InstVisitor<InstVisit> { public : static char ID; InstVisit():ModulePass(ID){} virtual bool runOnModule(Module &M) { visit(M); return false; } void visitStoreInst(StoreInst &SI) {

I have a loop fully unrolled and got the following store instruction. store i32 %add.3, i32* getelementptr inbounds ([20 x [20 x i32]]* @c, i32 0, i32 0, i32 0), align 4 I want to know exactly which element of the array that is going to be stored, which help me to transform the high level language to hardware. Take the instruction above as an example, I know the data is stored into c[0][0]. It

David, sorry for this email but I noticed I made a mistake in the previous one. So I managed to compile llvm Debug with asserts release. I have used the following commands: cmake -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_RTTI=ON -DLLVM_ENABLE_FFI=ON -DCMAKE_BUILD_TYPE=Debug -DLLVM_ENABLE_ASSERTIONS=ON .. cmake --build . -- -j8 && sudo cmake --build . --target install Once lli was

Hi Cheng, On 18/01/13 03:00, Cheng Liu wrote: > I have a loop fully unrolled and got the following store instruction. > > store i32 %add.3, i32* getelementptr inbounds ([20 x [20 x i32]]* @c, i32 0, > i32 0, i32 0), align 4 > > I want to know exactly which element of the array that is going to be > stored, which help me to transform the high level language to hardware. Take

Hi,everyone. I'm writing a pass in which a CallInst to an external function will be inserted. The function is declared like this: void func(int a, unsigned chat *p); and in the Pass(a Function Pass ,and using the InstVistor template ), I wrote like this: void visitStoreInst(StoreInst &SI) { //Get the refference of the types Module *M =

> > Hey Lang - does any of this look familiar to you? I'm afraid not: I know nothing about the interpreter. As far as I'm aware it's essentially abandonware. Alberto: The usual recommendation in these circumstances is to use a JIT class instead of the interpreter. You're using -force-interpreter though, so I assume you really want to use the interpreter for your use case?

Thanks Duncan, Yes, it is a ConstantExpr! Thank you! Now trying to find a clue in ConstantExpr's functions to get that string :-) Regards, Welson On Thu, Jan 26, 2012 at 9:04 PM, Duncan Sands <baldrick at free.fr> wrote: > Hi Welson Sun, > > > Hi, if I have some LLVM code like this: > > > > @.str = private unnamed_addr constant [7 x i8]

Dear All I'm trying to create storeInst using StoreInst *SI = new StoreInst(val, AI, BB); AI is an alloca instruction previously created, BB is the basicBlock I want to put instructionsi in. Val is the value to store. I've created val from a genericValue like this: Value* val = ConstantInt::get(getGlobalContext(), Result.IntVal); Result is the genericValue However I keep getting

Hello all, I would like to create a new StoreInst into a basic block. I found that I could use methods like ConstantInt::get() to provide the Value* for the first argument of the constructor of the StoreInst, but I don't know how to provide the second one. For example, if I would to do x = 1, I would like to create the "Value" object of "x" for the second argument. I

I'm using LLVM 3.3 Release. From the Class Reference Page. CallInst has a member function : static CallInst * Create (Value *Func, ArrayRef< Value * > Args, const Twine &NameStr="", Instruction *InsertBefore=0) This is what I want to use! the default name is "" and I also use that . Thanks! ----- Kind Regards! -JinHuang -- View this message in context:

Hi, I am trying to figure out the best way to add some extra metadata to the store and load llvm-ir instructions: The metadata content is a 'Value*' expression representing a side channel, containing dependency information that is used to help the Scoped Alias Analysis. Optimizations that don't know about this side channel can safely drop it, where the only effect would be on the

Hi, I am trying to write a simple interpreter. I am trying to generate LLVM IR for assignment operation. The code for the generation part looks like this llvm::Value* codeGenSymTab(llvm::LLVMContext& context) { > printf("\n CodeGen SymTab \n"); > Value *num = ConstantInt::get(Type::getInt64Ty(context), aTable.value, > true); > Value *alloc = new

Ok, now it's arising another problem. IR code that I obtain is the following: i8* bitcast ([5 x i8] c"hello\00" to i8*) generated from instructions: ConstantExpr::getBitCast (ConstantDataArray::getString (getGlobalContext (), "hello"), PointerType::get (Type::getInt8Ty (getGlobalContext ()), 0)) but the LLC tool says: invalid cast opcode for cast from '[5 x i8]'

Hi, I’m writing a loop-free LLVM pass, my thought is to track if the value inside the loop is changed, so I look up the Instruction StoreInst first and try to get its value in a set. I checked getValueOperand(), getValueName() in the API document but unfortunately they failed the compilation. if (isa<StoreInst>(I)){ Value* v = I.getOperand(0); Instruction* op1 =

Hi, I am trying to modify visitStoreInst() function in Execution.cpp of LLVM 2.7 to do some extra things. How I can determine whether the stored variable is global or local for some function? Regards, Nayden -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100806/fba58a79/attachment.html>

Because I need to convert an [4 x i8] type to i8* in the instantiation of a GlobalVariable. I have the follow declaration: %xxx = type { i8* } and I must emit the following variable: @yyy = linkonce_odr constant %xxx { [4 x i8] c"hello\00" }, but it's wrong. How do I do? 2012/12/18 Óscar Fuentes <ofv at wanadoo.es> > Alessio Giovanni Baroni <alessiogiovanni.baroni at

The code you've pasted there is inconsistent in variable names. Your created an instruction called 'op1' but your print uses 'v1'. What should be an '->' is just a '-'. You also have a variable in your print called 'op' but that's not declared in your code. Also the result of dyn_cast should always be checked for null before using the result.

Hi all, I am wondering the semantics of alignment in a StoreInst. For example, in the following code: %A = bitcast i8* %buffer to i32* store i32 %x, i32* %A, align 4 We have an "align 4" in the StoreInst. Does this mean 1) the address 'A' should be aligned to 4 bytes? 2) the lower 2 bits of 'A' should be always 0? Thanks Hongbin -------------- next part