llvm-hs-pure is a set of pure Haskell types and functions for interacting with LLVM http://llvm.org/. It includes an ADT to represent LLVM IR (http://llvm.org/docs/LangRef.html). The llvm-hs package builds on this one with FFI bindings to LLVM, but llvm-hs-pure does not require LLVM to be available.


5.1.0 (2017-10-12)


  • Suport string attributes as parameter attributes
  • Support more calling conventions
  • Support NoTail TailCallKind

5.0.0 (2017-09-07)

  • Support for LLVM 5.0

    We only give a summary of the changes affecting the public API of llvm-hs-pure here. Please refer to the official release notes for LLVM 5.0 for an overview of all changes in LLVM 5.0.

    • The X86_64_Win64 calling convention is now called Win64.
    • There is a new Speculatable function attribute.
    • The CrossThread synchronization scope has been removed. There is now a new System synchronization scope.

4.1.0 (2017-05-17)

  • Switch AST to ByteString/ShortByteString reflecting LLVM’s use of C-style strings.
  • preferredAlignment is now a Word32 instead of Maybe Word32. To recover the old behavior set it to the same value as abiAlignment.
  • GlobalAlias now expects the element type of a pointer type instead of the pointer type itself. The address space is passed separately via the addrSpace field. This makes GlobalAlias consistent with GlobalVariable.
  • The FloatingPointType constructor now takes a FloatingPointType argument instead of a width and a FloatingPointFormat to more closely match the LLVM IR language reference.
  • The IsString instance of Name now throws an error on non-ASCII strings instead of silently discarding the upper bytes. There is also a new mkName function with the same behavior for easier discoverability. Non-ASCII names need to be encoded using an arbitrary encoding to to a ShortByteString which can then be used as a Name.

4.0.0 (initial release, changes in comparison to llvm-general)

  • Move modules from LLVM.General* to LLVM.*
  • Support for LLVM 4.0
  • Improved support for LLVM’s exception handling instructions
  • -fshared-llvm is now supported on windows (thanks to @RyanGLScott)
  • Default to -fshared-llvm
  • Expose LLVM.Internal.* modules.
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