LLVM Types

Numbers

• i32 - most commonly used 32-bit integer
• i1 - 1-bit integer used for booleans
• float - single-precision 32-bit float
• double - double-precision 64-bit float
• bfloat - LLVM Brain floating point. special operatons

Void

• void - used as return types

Pointers

• ptr - general purpose untyped pointer

Pseudo-Types

• label - pseudo-type that represents block label. see LLVM Label
• token
• metadata

Arrays

• [<number> x <Type>]. Examples include:
  • %myarr = [1024 x i8]
  • %myzeroarr = [0 x i32]

Structs

• {<Type1>, <Type2>, ...}. Examples include:
  • {i64, ptr}
• <{...}> is a packed struct.

Vectors

• <<number> x <Type>>. Examples include:
  • %myvec = <4 x i32>

Types

• type can be used to define new types.

%slice = type {i64, ptr}