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Aug 13, 2020
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[NFC] Fixes to August'20 release notes #2307

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24 changes: 11 additions & 13 deletions sycl/ReleaseNotes.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# August'20 release notes

Release notes for the commit range 75b3dc2..414c1e5
Release notes for the commit range 75b3dc2..5976ff0

## New features
- Implemented basic support for the [Explicit SIMD extension](./sycl/doc/extensions/ExplicitSIMD/dpcpp-explicit-simd.md)
Expand All @@ -10,12 +10,11 @@ Release notes for the commit range 75b3dc2..414c1e5
- Implemented aspects feature from the SYCL 2020 provisional Specification
[89804af]


## Improvements
### SYCL Compiler
- [CUDA BE] Removed unnecessary memory fence in the `sycl::group::barier`
- [CUDA BE] Removed unnecessary memory fence in the `sycl::group::barrier`
implementation which should improve performance [e2fc1b8]
- [CUDA BE] Added support for the sycl builtins from relational, geometric,
- [CUDA BE] Added support for the SYCL builtins from relational, geometric,
common and math categories [d4e7929] [d9bad0b] [0c9c9c0] [99957c5]
- Added support for `C array` as a kernel parameter [00e7308]
- [CUDA BE] Added support for kernel offset [c7bb288]
Expand All @@ -32,15 +31,17 @@ Release notes for the commit range 75b3dc2..414c1e5
- Added a diagnostic on attempt to capture `this` as a kernel parameter
[1b9f026]
- Added [[intel::reqd_sub_group_size()]] attribute as a replacement for
[[cl::reqd_sub_group_size()]] which is now depricated [b2da2c8]
[[cl::reqd_sub_group_size()]] which is now deprecated [b2da2c8]
- Added propagation of attributes from transitive calls to the kernel[5c91609]
- Changed the driver to pass corresponding device specific options when `-g`
or `-O0` is passed [31eb425]
- The `sycl::usm_allocator` has been improved. Now it has equality operators
and can be used with `std::allocate_shared`. Disallowed usage with
device allocations [ce915ef]
- Added support for lambda functions passed to reductions [115c1a0]

- Enabled standard optimization pipeline for the device code by default. The
new compiler flag can be used to disable optimizations at compile time:
`-fno-sycl-std-optimizations` [5976ff0]

### SYCL Library
- Added support for braced-init-list or a number as range for
Expand All @@ -66,13 +67,13 @@ Release notes for the commit range 75b3dc2..414c1e5
[800e452]
- Added a diagnostic on attempt to create a device accessor from zero-sized
buffer [80b2110]
- Changed default backend to level zero [11ef88c]
- Changed default backend to Level Zero [11ef88c]
- Improved performance of the SYCL graph cleanup [c099e47]
- [L0 BE] Added support for `sycl::sampler` [f3b8cdf]
- Added support for `TriviallyCopyable` types to the
`sycl::intel::sub_group::shuffle` [d3c7b20]
- Implemented range simplification for queue Shortcuts [4009b8b]
- Changed `sycl::accessor::operator[]` to return const reference when acess
- Changed `sycl::accessor::operator[]` to return const reference when access
mode is `sycl::access::mode::read_only` [03db009]
- Exceptions thrown in a host task are now will be returned as asynchronous
exceptions [280b93c]
Expand All @@ -85,10 +86,9 @@ Release notes for the commit range 75b3dc2..414c1e5
- Implemented `get_native` and `make_*` functions for Level Zero allowing to
query native handles of SYCL objects and to create SYCL objects by providing
a native handle: platform, device, queue, program. The feature is described
the SYCL 2020 provisional specification [a51c333]
in the SYCL 2020 provisional specification [a51c333]
- Added support for `sycl::intel::atomic_ref` from [SYCL_INTEL_extended_atomics extension](doc/extensions/ExtendedAtomics/SYCL_INTEL_extended_atomics.asciidoc)


### Documentation
- Added [SYCL_INTEL_accessor_properties](doc/extensions/accessor_properties/SYCL_INTEL_accessor_properties.asciidoc) extension specification [58fc414]
- The documentation for the CUDA BE has been improved [928b815]
Expand All @@ -102,7 +102,6 @@ Release notes for the commit range 75b3dc2..414c1e5
- Added [FPGA lsu extension](sycl/doc/extensions/IntelFPGA/FPGALsu.md)
document [2c2b5f2]


## Bug fixes
### SYCL Compiler
- Fixed the diagnostic on `cl::reqd_sub_group_size` attribute mismatches
Expand Down Expand Up @@ -136,7 +135,7 @@ Release notes for the commit range 75b3dc2..414c1e5
- [CUDA BE] Fixed a memory leak related to unreleased events [d0a148a]
- [CUDA BE] Fixed diagnostic on attempt to fetch profiling info for commands
which profiling is not enabled for [76bf2ed]
- [L0 BE] Fixed memory leaks of device objects [eae48f6][6acb812]
- [L0 BE] Fixed memory leaks of device objects [eae48f6][6acb812][39e77733]
- [CUDA BE] Fixed a problem with that several operations were not profiled
if required [a420e7a]
- Fixed a possible race which could happen when an application builds an
Expand All @@ -160,7 +159,6 @@ Release notes for the commit range 75b3dc2..414c1e5
- Fixed `sycl::device::get_info<cl::sycl::info::device::sub_group_sizes>`
which was return incorrect data [e65841b]


## API/ABI breakages
- The memory_manager API has changed
- Layout of internal classes for `sycl::sampler` and `sycl::stream` have been
Expand Down