Changelog

[1.2.3] - 2020-02-12

Fixed

Fix a regression that could break usage of native plugins.

[1.2.2] - 2020-02-06

Fixed

Fix a potential StackOverflow when compiling a standalone player that can occur for nested jobs declared within a parent class that has generic parameters.
Fix an issue where the generated lib_burst_generated in Windows Standalone players could not be loaded if a native plugin was used from the sub folders Plugins\x86_64 or Plugins\x86.

[1.2.1] - 2020-01-23

Fixed

Fix issue with function pointers being corrupted after a domain reload that could lead to unexpected function pointer calls.
Fix potential deadlock between Burst and the Asset Database if burst is being used when building the database.
Fix AssemblyResolveException when loading a project with dependent packages that are using Burst in static initializers or InitializeOnLoad.

Known Issues

The fix for the deadlock requires to temporarily disable the ability to click on a compilation error in the Unity Editor to jump to the source IDE.

[1.2.0] - 2020-01-15

Update to stable version.

[1.2.0-preview.12] - 2020-01-10

Fix issue with sizeof on a struct defined in another assembly and would return the size of a pointer type instead of a real struct layout.
Fix issue with a potential InvalidOperationException related to ABI layout when compiling a function pointer on Linux/Mac.
Fix issue with a potential NullReferenceException when building a player for UWP.
Fix issue with a potential ArgumentException The output byte buffer is too small happening in the Editor when Burst is trying to compile a function that is producing a large log error.

[1.2.0-preview.11] - 2019-12-12

Fix issue ldflda opcode when the input on the stack is a value and not a pointer.
Add mechanism to trigger recompilation of jobs and function pointers.
Fix issue with a TypeLoadException related when trying to load PDB.
Fix issue for UWP to avoid an AssemblyResolutionException for types within Windows.* WinMd assemblies.

[1.2.0-preview.10] - 2019-12-04

Fix issue with debugging source locations that were no longer generated for standalone players.
Fix out-of-sync issue with JIT cache.
Fix potential data race on JIT cache when a domain reload is happening.
Fix issue with an exception occurring in mono_string_len.
Fix issue with burst Inspector disabled when disabling Burst from the main menu.
Fix issue with burst Inspector that was not showing any more compilation errors.
Fix issue with BurstCompiler.CompileFunctionPointer not working in a standalone player if Burst was disabled via standalone player build settings.
Fix issue on iOS where standalone player builds could fail, depending on number of burst-able functions found.
Fix a potential NullReferenceException when editing Burst AOT settings for standalone players.
Add documentation example for SharedStatic.
Enabled support for DOTS Runtime SharedStatics. Due to the nature of DOTS Runtime, only the generic versions of SharedStatic.GetOrCreate<TContext> are supported.

[1.2.0-preview.9] - 2019-11-06

Fix compilation requests being lost when using asynchronous compilation.
Prevent Burst compilation being toggled on while in play mode, either via "Enable Compilation" menu item or programmatically - was previously technically possible but produced unpredictable results.

[1.2.0-preview.8] - 2019-11-01

Fix a NullReferenceException happening in a call stack involving CecilExtensions.IsDelegate(...).

[1.2.0-preview.7] - 2019-10-30

Many improvements to the Inspector:
- New assembly syntax colorization!
- Fix issue with menu settings being modified when opening the Inspector.
- Make compile targets left pane resizable.
- Fix vertical scrollbar size.
- Add automatic refresh when selecting a target to compile.
Fix an issue where ref readonly of a struct type, returned from a function, would cause a compiler crash.
Add support for Interlocked.Exchange and Interlocked.CompareExchange for float and double arguments.
Fix bug preventing iOS builds from working, if burst is disabled in AOT Settings.

[1.2.0-preview.6] - 2019-10-16

New multi-threaded compilation support when building a standalone player.
Improve BurstCompiler.CompileFunctionPointer to compile asynchronously function pointers in the Editor.
Improve of error codes and messages infrastructure.
Upgraded Burst to use LLVM Version 8.0.1 by default, bringing the latest optimization improvements from the LLVM project.
Fix issue with libtinfo5 missing on Linux.
Fix possible NullReferenceException when an entry point function is calling another empty function.
Fix an exception occurring while calculating the size of a struct with indirect dependencies to itself.
Fix potential failure when loading MDB debugging file.
Fix linker issue with folder containing spaces.
Fix issue with package validation by removing ifdef around namespaces.
Fix issue with an internal compiler exception related to an empty stack.

[1.2.0-preview.5] - 2019-09-23

Fix crashing issue during the shutdown of the editor.

[1.2.0-preview.4] - 2019-09-20

Fix a logging issue on shutdown.

[1.2.0-preview.3] - 2019-09-20

Fix potential logging of an error while shutting down the editor.

[1.2.0-preview.2] - 2019-09-20

New multi-threaded compilation of jobs/function pointers in the editor.
Improve caching of compiled jobs/function pointers.
Fix a caching issue where some jobs/function pointers would not be updated in the editor when updating their code.
Fix an issue where type initializers with interdependencies were not executed in the correct order.
Fix an issue with Failed to resolve assembly Windows, Version=255.255.255.255... when building for Xbox One.
Fix compilation error on ARM32 when calling an external function.
Fix an issue with function pointers that would generate invalid code if a non-blittable type is used in a struct passed by ref.
Fix an issue with function pointers that would generate invalid code in case containers/pointers passed to the function are memory aliased.
Report a compiler error if a function pointer is trying to be compiled without having the [BurstCompile] attribute on the method and owning type.

[1.2.0-preview.1] - 2019-09-09

Fix assembly caching issue, cache usage now conservative (Deals with methods that require resolving multiple assemblies prior to starting the compilation - generics).
Fix Mac OS compatibility of Burst (10.10 and up) - fixes undefined symbol futimens.

[1.1.3-preview.3] - 2019-09-02

Query android API target level from player settings when building android standalone players.
Add calli opcode support to support bindings to native code.

[1.1.3-preview.2] - 2019-08-29

Fix to allow calling [BurstDiscard] functions from static constructors.
Correctly error if a DLLImport function uses a struct passed by value, but allow handle structs (structs with a single pointer/integer in them) as these require no ABI pain.
Upgraded Burst to use LLVM Version 8 by default, bringing the latest optimisation improvements from the LLVM project.
Added support for multiple LLVM versions, this does increase the package size, however it allows us to retain compatability with platforms that still require older versions of LLVM.
Fix bug in assembly caching, subsequent runs should now correctly use cached jit code as appropriate.
Add support for Lumin platform

[1.1.3-preview.1] - 2019-08-26

Add support for use of the MethodImpl(MethodImplOptions.NoOptimization) on functions.
Fix an issue whereby static readonly vector variables could not be constructed unless using the constructor whose number of elements matched the width of the vector.
Fix an issue whereby static readonly vector variables could not be struct initialized.
Improve codegen for structs with explicit layout and overlapping fields.
Fix a bug causing SSE4 instructions to be run on unsupported processors.
Fix an issue where storing a pointer would fail as our type normalizer would cast the pointer to an i8.
Begin to add Burst-specific aliasing information by instructing LLVM on our stack-allocation and global variables rules.

[1.1.2] - 2019-07-26

Fix an issue where non-readonly static variable would not fail in Burst while they are not supported.
Fix issue with char comparison against an integer. Add partial support for C# char type.
Improve codegen for struct layout with simple explicit layout.
Fix NullReferenceException when using a static variable with a generic declaring type.
Fix issue with stackalloc not clearing the allocated stack memory as it is done in .NET CLR.

[1.1.1] - 2019-07-11

Fix a compiler error when using a vector type as a generic argument of a NativeHashMap container.
Disable temporarily SharedStatic/Execution mode for current 2019.3 alpha8 and before.
Fix detection of Android NDK for Unity 2019.3.
Update documentation for known issues.

[1.1.0] - 2019-07-09

Fix detection of Android NDK for Unity 2019.3.
Update documentation for known issues.

[1.1.0-preview.4] - 2019-07-05

Burst will now report a compilation error when writing to a [ReadOnly] container/variable.
Fix regression with nested generics resolution for interface calls.
Fix issue for UWP with Burst generating non appcert compliant binaries.
Fix issue when reading/writing vector types to a field of an explicit layout.
Fix build issue on iOS, use only hash names for platforms with clang toolchain to mitigate issues with long names in LLVM IR.
Allow calls to intrinsic functions (e.g System.Math.Log) inside static constructors.
Improve performance when detecting if a method needs to be recompiled at JIT time.
Fix an issue with explicit struct layout and vector types.

[1.1.0-preview.3] - 2019-06-28

Fix issue with generic resolution that could fail.
Add support for readonly static data through generic instances.
Add internal support for SharedStatic<T> for TypeManager.
Add intrinsic support for math.bitmask.

[1.1.0-preview.2] - 2019-06-20

Fix issue where uninitialized values would be loaded instead for native containers containing big structs.
Fix issue where noalias analysis would fail for native containers containing big structs.
Fix issue when calling "internal" methods that take bool parameters.
Add support for MethodImplOptions.AggressiveInlining to force inlining.
Fix issue in ABITransform that would cause compilation errors with certain explicit struct layouts.
Disable debug information generation for PS4 due to IR compatability issue with latest SDK.
Implemented an assembly level cache for JIT compilation to improve iteration times in the Editor.
Implement a hard cap on the length of symbols to avoid problems for platforms that ingest IR for AOT.
Add support for FunctionPointer<T> usable from Burst Jobs via BurstCompiler.CompileFunctionPointer<T>.
Add BurstCompiler.Options to allow to control/enable/disable Burst jobs compilation/run at runtime.
Add BurstRuntime.GetHashCode32<T> and GetHashCode64<T> to allow to generate a hash code for a specified time from a Burst job.

[1.0.0] - 2019-04-16

Release stable version.

[1.0.0-preview.14] - 2019-04-15

Bump to mathematics 1.0.1
Fix android ndk check on windows when using the builtin toolchain.
Fix crash when accessing a field of a struct with an explicit layout through an embedded struct.
Fix null pointer exception on building for android if editor version is less than 2019.1.
Workaround IR compatibility issue with AOT builds on IOS.

[1.0.0-preview.13] - 2019-04-12

Fix linker error on symbol $___check_bounds already defined.
Fix StructLayout Explicit size calculation and backing storage.

[1.0.0-preview.12] - 2019-04-09

Fix crash when accessing a NativeArray and performing in-place operations (e.g nativeArray[i] += 121;).

[1.0.0-preview.11] - 2019-04-08

Improve error logging for builder player with Burst.
Fix NullReferenceException when storing to a field which is a generic type.

[1.0.0-preview.10] - 2019-04-05

Update known issues in the user manual.
Improve user manual documentation about debugging, [BurstDiscard] attribute, CPU architectures supported...
Fix an issue where Burst callbacks could be sent to the editor during shutdowns, causing an editor crash.
Improve error messages for external tool chains when building for AOT.

[1.0.0-preview.9] - 2019-04-03

Fix an auto-vectorizer issue not correctly detecting the safe usage of NativeArray access when performing in-place operations (e.g nativeArray[i] += 121;).
Add support for dynamic dispatch of functions based on CPU features available at runtime.
- Fix issue when running SSE4 instructions on a pre-SSE4 CPU.
Fix write access to NativeArray<bool>.
Remove dependencies to C runtime for Windows/Linux build players (for lib_burst_generated.so/.dll).
Updated API documentation.
Update User manual.
Static link some libraries into the Burst llvm wrapper to allow better support for some linux distros.

[1.0.0-preview.8] - 2019-03-28

Fix for iOS symbol names growing too long, reduced footprint of function names via pretty printer and a hash.

[1.0.0-preview.7] - 2019-03-28

Burst will now only generate debug information for AOT when targeting a Development Build.
Added support for locating the build tools (standalone) for generating AOT builds on windows, without having to install Visual Studio complete.
Fix Log Timings was incorrectly being passed along to AOT builds, causing them to fail.
Fix editor crash if Burst aborted compilation half way through (because editor was being closed).
Fix issue with job compilation that could be disabled when using the Burst inspector.
Fix issue with spaces in certain paths (e.g. ANDROID_NDK_ROOT) when building for AOT.
Restore behavior of compiling ios projects from windows with Burst, (Burst does not support cross compiling for ios) - we still generate a valid output project, but with no Burst code.
Add support for Android embedded NDK.
Fix issue where certain control flow involving object construction would crash the compiler in release mode.

[1.0.0-preview.6] - 2019-03-17

Fix invalid codegen with deep nested conditionals.
Fix issue with Burst menu "Enable Compilation" to also disable cache jobs.
Improve handling of PS4 toolchain detection.

[1.0.0-preview.5] - 2019-03-16

Fix regression with JIT caching that was not properly recompiling changed methods.
Remove NativeDumpFlags from public API.
Remove usage of PropertyChangingEventHandler to avoid conflicts with custom Newtonsoft.Json.
Fix issue when a job could implement multiple job interfaces (IJob, IJobParallelFor...) but only the first one would be compiled.

[1.0.0-preview.4] - 2019-03-15

Fix "Error while verifying module: Invalid bitcast" that could happen with return value in the context of deep nested conditionals.
Fix support for AOT compilation with float precision/mode.
Fix fast math for iOS/PS4.
Fix issue with double not using optimized intrinsics for scalars.
Fix issue when loading a MDB file was failing when building a standalone player.
Fix no-alias analysis that would be disabled in a standalone player if only one of the method was failing.
Fix bug with explicit layout struct returned as a pointer by a property but creating an invalid store.
Change FloatPrecision.Standard defaulting from FloatPrecision.High (ULP1) to FloatPrecision.Medium (ULP3.5).

[1.0.0-preview.3] - 2019-03-14

Fix compilation issue with uTiny builds.

[1.0.0-preview.2] - 2019-03-13

Fix no-alias warning spamming when building a standalone player.
Improve the layout of the options/buttons for the inspector so that they at least attempt to layout better when the width is too small for all the buttons.
Fix formatting of error messages so the Unity Console can correctly parse the location as a clickable item (Note however it does not appear to allow double clicking on absolute paths).
Change Burst menu to Jobs/Burst. Improve order of menu items.
Fix for AOTSettings bug related to StandaloneWindows vs StandaloneWindows64.

[1.0.0-preview.1] - 2019-03-11

Fix regression when resolving the type of generic used in a field.
Fix linker for XboxOne, UWP.
Fix performance codegen when using large structs.
Fix codegen when a recursive function is involved with platform dependent ABI transformations.

[0.2.4-preview.50] - 2019-02-27

Fix meta file conflict.
Fix changelog format.

[0.2.4-preview.49] - 2019-02-27

Move back com.unity.burst.experimental for function pointers support, but use internal modifier for this API.
Restructure package for validation.

[0.2.4-preview.48] - 2019-02-26

Move back com.unity.burst.experimental for function pointers support, but use internal modifier for this API.

[0.2.4-preview.47] - 2019-02-26

Fix an issue during publish stage which was preventing to release the binaries.

[0.2.4-preview.46] - 2019-02-26

iOS player builds now use static linkage (to support TestFlight) - Minimum supported Unity versions are 2018.3.6f1 or 2019.1.0b4.
Fix a warning in Burst AOT settings.
Enable forcing synchronous job compilation from menu.

[0.2.4-preview.45] - 2019-02-07

Disable Burst AOT settings support for unity versions before 2019.1.

[0.2.4-preview.44] - 2019-02-06

Fix incorrect conversions when performing subtraction with enums and floats.
Fix compatability issue with future unity versions.
Fix bug with ldfld bitcast on structs with explicit layouts.
Guard against an issue resolving debug locations if the scope is global.

[0.2.4-preview.43] - 2019-02-01

Add preliminary support for Burst AOT settings in the player settings.
Move BurstCompile (delegate/function pointers support) from com.unity.burst package to com.unity.burst.experimental package.
Fix issue with stackalloc allocating a pointer size for the element type resulting in possible StackOverflowException.
Add support for disabling Burst compilation from Unity editor with the command line argument --burst-disable-compilation .
Add support for forcing synchronous compilation from Unity editor with the command line argument --burst-force-sync-compilation.
Fix a compiler crash when generating debugging information.
Fix invalid codegen involving ternary operator

[0.2.4-preview.42] - 2019-01-22

Fix a compilation error when implicit/explicit operators are used returning different type for the same input type.

[0.2.4-preview.41] - 2019-01-17

Fix codegen issue with Interlocked.Decrement that was instead performing an increment.
Fix codegen issue for an invalid layout of struct with nested recursive pointer references.
Fix for Fogbugz case : https://fogbugz.unity3d.com/f/cases/1109514/.
Fix codegen issue with ref bool on a method argument creating a compiler exception.

[0.2.4-preview.40] - 2018-12-19

Fix bug when a write to a pointer type of an argument of a generic function.
Breaking change of API: Accuracy -> FloatPrecision, and Support => FloatMode.
Add FloatMode.Deterministic mode with early preview of deterministic mathematical functions.
Fix bug with fonts in inspector being incorrectly reloaded.

[0.2.4-preview.39] - 2018-12-06

Add preview support for readonly static arrays typically used for LUT.
Fix an issue with generics incorrectly being resolved in certain situations.
Fix ARM32/ARM64 compilation issues for some instructions.
Fix ARM compilation issues on UWP.
Fix issue with math.compress.
Add support for ldnull for storing a managed null reference to a ref field (e.g for DisposeSentinel).

[0.2.4-preview.38] - 2018-11-17

Fix issue when converting an unsigned integer constant to a larger unsigned integer (e.g (ulong)uint.MaxValue).
Fix crash in editor when IRAnalysis can return an empty string .
Fix potential crash of Cecil when reading symbols from assembly definition.

[0.2.4-preview.37] - 2018-11-08

Fix a crash on Linux and MacOS in the editor with dlopen crashing when trying to load burst-llvm (linux).

[0.2.4-preview.36] - 2018-11-08

Fix a crash on Linux and MacOS in the editor with dlopen crashing when trying to load burst-llvm (mac).

[0.2.4-preview.35] - 2018-10-31

Try to fix a crash on macosx in the editor when a job is being compiled by Burst at startup time.
Fix Burst accidentally resolving reference assemblies.
Add support for Burst for ARM64 when building UWP player.

[0.2.4-preview.34] - 2018-10-12

Fix compiler exception with an invalid cast that could occur when using pinned variables (e.g int32& resolved to int32** instead of int32*).

[0.2.4-preview.33] - 2018-10-10

Fix a compiler crash with methods incorrectly being marked as external and throwing an exception related to ABI.

[0.2.4-preview.32] - 2018-10-04

Fix codegen and linking errors for ARM when using mathematical functions on plain floats.
Add support for vector types GetHashCode.
Add support for DllImport (only compatible with Unity 2018.2.12f1+ and 2018.3.0b5+).
Fix codegen when converting uint to int when used in a binary operation.

[0.2.4-preview.31] - 2018-09-24

Fix codegen for fmodf to use inline functions instead.
Add extended disassembly output to the Burst inspector.
Fix generic resolution through de-virtualize methods.
Fix bug when accessing float3.zero. Prevents static constructors being considered intrinsics.
Fix NoAlias attribute checking when generics are used.

[0.2.4-preview.30] - 2018-09-11

Fix IsValueType throwing a NullReferenceException in case of using generics.
Fix discovery for Burst inspector/AOT methods inheriting from IJobProcessComponentData or interfaces with generics.
Add [NoAlias] attribute.
Improved codegen for csum.
Improved codegen for abs(int).
Improved codegen for abs on floatN/doubleN.

[0.2.4-preview.29] - 2018-09-07

Fix issue when calling an explicit interface method not being matched through a generic constraint.
Fix issue with or/and binary operation on a bool returned by a function.

[0.2.4-preview.28] - 2018-09-05

Fix a compilation issue when storing a bool returned from a function to a component of a bool vector.
Fix AOT compilation issue with a duplicated dictionary key.
Fix settings of ANDROID_NDK_ROOT if it is not setup in Unity Editor.

[0.2.4-preview.27] - 2018-09-03

Improve detection of jobs within nested generics for AOT/Burst inspector.
Fix compiler bug of comparison of a pointer to null pointer.
Fix crash compilation of sincos on ARM (neon/AARCH64).
Fix issue when using a pointer to a VectorType resulting in an incorrect access of a vector type.
Add support for doubles (preview).
Improve AOT compiler error message/details if the compiler is failing before the linker.

[0.2.4-preview.26] - 2018-08-21

Added support for cosh, sinh and tanh.

[0.2.4-preview.25] - 2018-08-16

Fix warning in unity editor.

[0.2.4-preview.24] - 2018-08-15

Improve codegen of math.compress.
Improve codegen of math.asfloat/asint/asuint.
Improve codegen of math.csum for int4.
Improve codegen of math.count_bits.
Support for lzcnt and tzcnt intrinsics.
Fix AOT compilation errors for PS4 and XboxOne.
Fix an issue that could cause wrong code generation for some unsafe ptr operations.

[0.2.4-preview.23] - 2018-07-31

Fix bug with switch case to support not only int32.

[0.2.4-preview.22] - 2018-07-31

Fix issue with pointers comparison not supported.
Fix a StackOverflow exception when calling an interface method through a generic constraint on a nested type where the declaring type is a generic.
Fix an issue with EntityCommandBuffer.CreateEntity/AddComponent that could lead to ArgumentException/IndexOutOfRangeException.

[0.2.4-preview.21] - 2018-07-25

Correct issue with Android AOT compilation being unable to find the NDK.

[0.2.4-preview.20] - 2018-07-05

Prepare the user documentation for a public release.

[0.2.4-preview.19] - 2018-07-02

Fix compilation error with generics when types are coming from different assemblies.

[0.2.4-preview.18] - 2018-06-26

Add support for subtracting pointers.

[0.2.4-preview.17] - 2018-06-25

Bump only to force a new version pushed.

[0.2.4-preview.16] - 2018-06-25

Fix AOT compilation errors.

[0.2.4-preview.15] - 2018-06-25

Fix crash for certain access to readonly static variable.
Fix StackOverflowException when using a generic parameter type into an interface method.

[0.2.4-preview.14] - 2018-06-23

Fix an issue with package structure that was preventing Burst to work in Unity.

[0.2.4-preview.13] - 2018-06-22

Add support for Burst timings menu.
Improve codegen for sin/cos.
Improve codegen when using swizzles on vector types.
Add support for sincos intrinsic.
Fix AOT deployment.

[0.2.4-preview.12] - 2018-06-13

Fix a bug in codegen that was collapsing methods overload of System.Threading.Interlocked to the same method.

[0.2.4-preview.11] - 2018-06-05

Fix exception in codegen when accessing readonly static fields from different control flow paths.

[0.2.4-preview.10] - 2018-06-04

Fix a potential stack overflow issue when a generic parameter constraint on a type is also referencing another generic parameter through a generic interface constraint
Update to latest Unity.Mathematics:
- Fix order of parameters and codegen for step functions.

[0.2.4-preview.9] - 2018-05-29

Fix bug when casting an IntPtr to an enum pointer that was causing an invalid codegen exception.

[0.2.4-preview.8] - 2018-05-24

Breaking change: Move Unity.Jobs.Accuracy/Support to Unity.Burst.
Deprecate ComputeJobOptimizationAttribute in favor of BurstCompileAttribute.
Fix bug when using enum with a different type than int.
Fix bug with IL stind that could lead to a memory corruption.

[0.2.4-preview.7] - 2018-05-22

Add support for nested structs in SOA native arrays.
Add support for arbitrary sized elements in full SOA native arrays.
Fix bug with conversion from signed/unsigned integers to signed numbers (integers & floats).
Add support for substracting pointers at IL level.
Improve codegen with pointers arithmetic to avoid checking for overflows.

[0.2.4-preview.6] - 2018-05-11

Remove bool1 from mathematics and add proper support in Burst.
Add support for ARM platforms in the Burst inspector UI.

[0.2.4-preview.5] - 2018-05-09

Add support for readonly static fields.
Add support for stackalloc.
Fix potential crash on MacOSX when using memset is used indirectly.
Fix crash when trying to write to a bool1*.
Fix bug with EnableBurstCompilation checkbox not working in Unity Editor.

[0.2.4-preview.4] - 2018-05-03

Fix an issue on Windows with DllNotFoundException occurring when trying to load burst-llvm.dll from a user profile containing unicode characters in the folder path.
Fix an internal compiler error occurring with IL dup instruction.

[0.2.4-preview.3] - 2018-05-03

Add support for struct with an explicit layout.
Fix noalias regression (that was preventing the auto-vectorizer to work correctly on basic loops).

0.2.3 (21 March 2018)

Improve error messages for static field access.
Improve collecting of compilable job by trying to collect concrete job type instances (issue #23).

0.2.2 (19 March 2018)

Improve error messages in case using is or as cast in C#.
Improve error messages if a static delegate instance is used.
Fix codegen error when converting a byte/ushort to a float.

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