Classes

The following classes are available globally.

  • A Function represents a named function body in LLVM IR source. Functions in LLVM IR encapsulate a list of parameters and a sequence of basic blocks and provide a way to append to that sequence to build out its body.

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    Declaration

    Swift

    public class Function: IRGlobal
  • A Module represents the top-level structure of an LLVM program. An LLVM module is effectively a translation unit or a collection of translation units merged together.

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    Declaration

    Swift

    public final class Module: CustomStringConvertible
  • A Context represents execution states for the core LLVM IR system.

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    Declaration

    Swift

    public class Context
  • An IRBuilder is a helper object that generates LLVM instructions. IR Builders keep track of a position within a function or basic block and has methods to insert instructions at that position.

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    Declaration

    Swift

    public class IRBuilder
  • JIT

    A JIT is a Just-In-Time compiler that will compile and execute LLVM IR that has been generated in a Module. It can execute arbitrary functions and return the value the function generated, allowing you to write interactive programs that will run as soon as they are compiled.

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    Declaration

    Swift

    public final class JIT
  • MemoryBuffer provides simple read-only access to a block of memory, and provides simple methods for reading files and standard input into a memory buffer. In addition to basic access to the characters in the file, this interface guarantees you can read one character past the end of the file, and that this character will read as ‘\0’.

    The ‘\0’ guarantee is needed to support an optimization – it’s intended to be more efficient for clients which are reading all the data to stop reading when they encounter a ‘\0’ than to continually check the file position to see if it has reached the end of the file.

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    Declaration

    Swift

    public class MemoryBuffer: Sequence
  • A FunctionPassManager is an object that collects a sequence of passes which run over a particular IR construct, and runs each of them in sequence over each such construct.

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    Declaration

    Swift

    public class FunctionPassManager
  • A TargetData encapsulates information about the data requirements of a particular target architecture and can be used to retrieve information about sizes and offsets of types with respect to this target.

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    Declaration

    Swift

    public class TargetData
  • A Target object represents an object that encapsulates information about a host architecture, vendor, ABI, etc.

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    Declaration

    Swift

    public class Target
  • A TargetMachine object represents an object that encapsulates information about a particular machine (i.e. CPU type) associated with a target environment.

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    Declaration

    Swift

    public class TargetMachine