CODEWITHSUNDEEP
c++performanceoptimizationcompiler-constructionllvm
Tasmia Rahman
Tasmia Rahman

Reputation: 69

Convert Constant Integer to Value* LLVM

I am trying to create an IR instruction 

store i32 0, i32* %3, align 4

I am using the method 

StoreInst *CreateAlignedStore(Value *Val, Value *Ptr, unsigned Align, bool isVolatile = false)

to create the instruction. Since the first argument takes a Value*, somehow I need to convert 0 to Value*.

Can you help me with that?

Upvotes: 4

Views: 4051

Answers (1)

Anahit Hayrapetyan
Anahit Hayrapetyan

Reputation: 161

You can use llvm::Constant for the *val, llvm Constant inherits from Value. One way to create a Constant for 0 is

llvm::ConstantInt::get(llvm::Type::getInt64Ty(Ctx), 0)

Where Ctx is context of a function you'r inserting StoreInst to

Upvotes: 5

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