CODEWITHSUNDEEP
c++llvm
otto sleger
otto sleger

Reputation: 143

Converting Int to APInt in LLVM [C++]

im trying to build language via LLVM (because i simply must), but was stuck at the simple start. Im trying to make int constants, but:

this was my try:

Value * val = ConstantInt::get(Context, APInt(m_Lexer.numVal())

but answer is, that there is no APInt contructor accepting 32bit signed int.

My questions are simple:

I tryed worked by this tutorial, but it works only with doubles, but i need ints: https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl03.html

Upvotes: 1

Views: 939

Answers (1)

droptop
droptop

Reputation: 1681

The first argument to ConstantInt::get is an llvm Type not a context. Try this

Value * val = ConstantInt::get(Type::getInt32Ty(Context), m_Lexer.numVal(), true);

where the last boolean argument determines if val would represent a signed or unsigned i32

Upvotes: 1

Related Questions