Release 1.5.0

This commit is contained in:
Dmitry Babokin
2013-09-27 23:27:05 +04:00
parent 570246a016
commit 8a39af8f72
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=== v1.5.0 === (27 September 2013)
A major new version of ISPC with several new targets and important bug fixes.
Here's a list of the most important changes, if you are using pre-built
binaries (which are based on patched version of LLVM 3.3):
* The naming of targets was changed to explicitly include data type width and
a number of threads in the gang. For example, avx2-i32x8 is avx2 target,
which uses 32 bit types as a base and has 8 threads in a gang. Old naming
scheme is still supported, but depricated.
* New SSE4 targets for calculations based on 8 bit and 16 bit data types:
sse4-i8x16 and sse4-i16x8.
* New AVX1 target for calculations based on 64 bit data types: avx1-i64x4.
* SVML support was extended and improved.
* Behavior of -g switch was changed to not affect optimization level.
* ISPC debug infrastructure was redesigned. See --help-dev for more info and
enjoy capabilities of new --debug-phase=<value> and --off-phase=<value>
switches.
* Fixed an auto-dispatch bug, which caused AVX code execution when OS doesn't
support AVX (but hardware does).
* Fixed a bug, which discarded uniform/varying keyword in typedefs.
* Several performance regressions were fixed.
If you are building ISPC yourself, then following changes are also available
to you:
* --cpu=slm for targeting Intel Atom codename Silvermont (if LLVM 3.4 is used).
* ARM NEON targets are available (if enabled in build system).
* --debug-ir=<value> is available to generate debug information based on LLVM
IR (if LLVM 3.4 is used). In debugger you'll see LLVM IR instead of source
code.
* A redesigned and improved test and configuration management system is
available to facilitate the process of building LLVM and testing ISPC
compiler.
Standard library changes/fixes:
* __pause() function was removed from standard library.
* Fixed reduce_[min|max]_[float|double] intrinsics, which were producing
incorrect code under some conditions.
Language changes:
* By default a floating point constant without a suffix is a single precision
constant (32 bit). A new suffix "d" was introduced to allow double precision
constant (64 bit). Please refer to tests/double-consts.ispc for syntax
examples.
=== v1.4.4 === (19 July 2013)
A minor version update with several stability fixes requested by the customers.

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ispc News
=========
ispc 1.5.0 is Released
----------------------
A major update of ``ispc`` has been released with several new targets available
and bunch of performance and stability fixes. The released binaries are built
with patched version of LLVM 3.3. Please refer to Release Notes for complete
set of changes.
ispc 1.4.4 is Released
----------------------