aaron/ispc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Release notes, bump doxygen release number for 1.1.4

Browse Source
This commit is contained in:
Matt Pharr
2012-02-04 15:38:17 -08:00
parent c2ecc15b93
commit a9ec745275
2 changed files with 40 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
docs/ReleaseNotes.txt
View File

@@ -1,3 +1,42 @@
=== v1.1.4 === (4 February 2012)
There are two major bugfixes for Windows in this release. First, a number
of failures in AVX code generation on Windows have been fixed; AVX on
Windows now has no known issues. Second, a longstanding bug in parsing 64-bit
integer constants on Windows has been fixed.
This release features a new experimental scalar target, contributed by Gabe
Weisz <gweisz@cs.cmu.edu>. This target ("--target=generic-1") compiles
gangs of single program instances (i.e. programCount == 1); it can be
useful for debugging ispc programs.
The compiler now supports dynamic memory allocation in ispc programs (with
"new" and "delete" operators based on C++). See
http://ispc.github.com/ispc.html#dynamic-memory-allocation in the
documentation for more information.
ispc now performs "short circuit" evaluation of the || and && logical
operators and the ? : selection operator. (This represents the correction
of a major incompatibility with C.) Code like "(index < arraySize &&
array[index] == 1)" thus now executes as in C, where "array[index]" won't
be evaluated unless "index" is less than "arraySize".
The standard library now provides "local" atomic operations, which are
atomic across the gang of program instances (but not across other gangs or
other hardware threads. See the updated documentation on atomics for more
information:
http://ispc.github.com/ispc.html#atomic-operations-and-memory-fences.
The standard library now offers a clock() function, which returns a uniform
int64 value that counts processor cycles; it can be used for
fine-resolution timing measurements.
Finally (of limited interest now): ispc now supports the forthcoming AVX2
instruction set, due with Haswell-generation CPUs. All tests and examples
compile and execute correctly with AVX2. (Thanks specifically to Craig
Topper and Nadav Rotem for work on AVX2 support in LLVM, which made this
possible.)
=== v1.1.3 === (20 January 2012)
With this release, the language now supports "switch" statements, with the