## 6.2.0 (2018-05-08)
* Remove field prefixes from `DIDerivedType`, `DIBasicType` and
`DISubroutineType` to make the API consistent with the other debug
metadata types.
* Change the type of the scope fields in `DIModule` and `DINamespace`
to `Maybe (MDRef DIScope)` to reflect that they can be optional.
## 6.1.0 (2018-05-05)
* IRBuilder: Ensure that automatically generated block labels are
assigned smaller identifiers than the instructions following
them. This is only important when you use
`llvm-hs-pretty`. `llvm-hs` does not care about the order of
identifiers assigned to unnamed values.
* IRBuilder: add `currentBlock` which returns name of the currently
active block.
* Remove the `MetadataNodeReference` constructor. References to
metadata nodes are now encoded using the polymorphic `MDRef` type.
* Add debug metadata to the AST in `LLVM.AST.Operand`. Thanks to
@xldenis who started that effort!
* Drop support for GHC 7.10.
* Add `metadata` field to `GlobalVariable` and `Function`.
## 6.0.0 (2018-03-06)
* Support for LLVM 6.0
* Add `StrictFP` and `SanitizeHWAddress` function attributes.
* Remove `UnsafeAlgebra` constructor from `FastMathFlags`.
* Add `allowReassoc`, `allowContract` and `approxFunc` fields to `FastMathFlags`.
* Remove `NoFastMathFlags` constructor since it is equivalent to
setting all fields in the `FastMathFlags` record to
`False`. Existing uses of `NoFastMathFlags` can be replaced by the
`noFastMathFlags` value.
* Add `AggregateZero` for zero-initializing structs, arrays and vectors. Previously `Null`
was used for null pointers as well as zero-inializing aggregates. The new behavior reflects
LLVM’s internal representation and the C++-API. Existing uses of `Null` on non-pointer types
must be changed to `AggregateZero`.
* Fix recursive function calls in the `IRBuilder` API.
## 5.1.2 (2018-01-06)
* Fixes and enhancements to the IRBuilder
* `sdiv` and `udiv` no longer default to exact.
* Fix type of global references.
* Add more instructions.
## 5.1.1 (2017-12-16)
* Add a completely new API for building modules in a monadic style similar to the IRBuilder provided by LLVM’s C++ API. The modules can be found in `LLVM.IRBuilder`. An example can be found in the readme and in the test suite.
* Add an API for getting the type of LLVM values in
`LLVM.AST.Typed`. This is primarily intended to be used in other
libraries that build upon `llvm-hs-pure` such as `llvm-hs-pretty`.
## 5.1.0 (2017-10-12)
### Enhancements
* 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](http://releases.llvm.org/5.0.0/docs/ReleaseNotes.html)
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.