May 12, 2026 - LLVM identifiers come in two basic types: global and local. Global identifiers (functions, global variables) begin with the '@' character. Local identifiers (register names, types) begin with the '%' character.

References llvm::cast(). Returns a byte (vector of byte) type with the same size of an integer of the given integer (vector of integer) type.

3 weeks ago - LLVM supports a language-independent instruction set and type system. Each instruction is in static single assignment form (SSA), meaning that each variable (called a typed register) is assigned once and then frozen. This helps simplify the analysis of dependencies among variables.

Things that don't have a size are abstract types, labels, and void.a ... Definition at line 634 of file Core.cpp. References llvm::unwrap().

Class to represent struct types.

This models llvm::BasicBlock. Definition at line 82 of file Types.h.

LLVM identifiers come in two basic types: global and local. Global identifiers (functions, global variables) begin with the '@' character. Local identifiers (register names, types) begin with the '%' character.

Return the variable name or value of the LlvmVar in a plain textual representation (e.g. x, y or 42). ... Print a literal value. No type.

In LLVM, types belong to the LLVMContext. Primitive types such as int32, float, or double pre-allocated and then reused. In the context of LLVMContext (pun intended), you can only create one instance of a primitive type.

There will be a Type object created for 'int'. Since int is canonical, its CanonicalType pointer points to itself. There is also a Type for 'foo' (a TypedefType). Its CanonicalType pointer points to the 'int' Type. Next there is a PointerType that represents 'int*', which, like 'int', is canonical.

We’ve seen i32 and its friends; these are arbitrary-bit-with integers. i1 is special because it is used as the boolean type. LLVM optimizations have been known to generate integer types with non-power-of-two sizes.

September 12, 2025 - All values used in an LLVM module are explicitly typed. All types derive from a common base class Type. You can instantiate most of them directly.

Vector types enable multiple primitive data operations in parallel using a single instruction (SIMD) [3]. MIPS supports icmp slt and sext LLVM IRs for vector types, which Cpu0 also supports.

December 19, 2024 - Notice that you must specify the type of the result after the call. ... LLVM provides integer types such as i64, i32, i8, and i1. Boolean variables in LLVM are represented by i1, a 1-bit integer.

If any arguments need to be immediates, these must be indicated with the ImmArg property. Note that any intrinsic using one of the llvm_any*_ty types for an argument or return type will be deemed by tblgen as overloaded and the corresponding suffix will be required on the intrinsic’s name.

Get the type parameter at the given index for the target extension type. ... Definition at line 982 of file Core.cpp. References llvm::unwrap(), and llvm::wrap().

April 8, 2024 - LLVM IR is a low-level programming language similar to assembly. IR is a strongly typed RISC instruction set, with an infinite set of temporary “registers” (which are numbered, like %0, %1, etc.), instead of a fixed set of registers.

Integer representation type · Definition at line 42 of file DerivedTypes.h. This enum is just used to hold constants we need for IntegerType. Definition at line 52 of file DerivedTypes.h. Definition at line 46 of file DerivedTypes.h. References llvm::CallingConv::C, llvm::Type::IntegerTyID, llvm::Type::setSubclassData(), and llvm::Type::Type().

LLVM IR has become the foundation of numerous static-analysis frameworks. In this setting, the · IR’s precise type information—particularly its pointer types—serves as an indispensable pillar

Thus seeing if two types are equal is a matter of doing a trivial pointer comparison. To enforce that no two equal instances are created, Type instances can only be created via static factory methods in class Type and in derived classes. Once allocated, Types are never free'd. ... This refers to the LLVMContext in which this type was uniqued.