ispc/ispc v1.13.0

=== v1.13.0 === (23 April 2020)

on GitHub

An ISPC update, which graduates cross-compilation support to production and
has multiple code generation improvements and bug fixes. AVX512 targets may
get the biggest performance boost due to changed internal representation of
masks (we observed up to 5% speedups), and new switch --opt=disable-zmm,
which disables using zmm registers in favour of ymm for avx512skx-i32x16 target.
All targets will definitely benefit from LLVM 10.0 backend used in this release.

Here is the list of other changes:

• new switch --support-matrix was added to display information about supported
  cross-compilation targets, which are managed by --target-os=<os>,
  --target=<ispc-target>, and --arch=<arch> switches.
• representation of 'bool' type in storage was changed to match C/C++ (i.e. one
  bool occupies one byte) for better interoperability.
• type aliases for unsigned types were added: uint8, uint16, uint32,
  uint64, and uint. To detect if these types are supported you can check if
  ISPC_UINT_IS_DEFINED macro is defined.
• extract()/insert() for boolean arguments, and abs() for all integer and
  FP types were added to standard library.
• FreeBSD was added to the list of supported target OSes, but it's not well
  tested.

Supported platforms in this release are below. Rows are hosts, columns are
targets. x86 and arm are both 32 and 64 bits, where appropriate.