Merge branch 'master' into nvptx_merge

docs/ReleaseNotes.txt

@@ -1,3 +1,47 @@
+=== v1.7.0 === (18 April 2014)
+
+A major new version of ISPC with several language and library extensions and
+fixes in debug info support. Binaries for all platforms are based on patched
+version on LLVM 3.4. There also performance improvements beyond switchover to
+LLVM 3.4.
+
+The list of language and library changes:
+
+* Support for varying types in exported functions was added. See documentation
+  for more details.
+
+* get_programCount() function was moved from stdlib.ispc to
+  examples/util/util.isph, which needs to be included somewhere in your
+  project, if you want to use it.
+
+* Library functions for saturated arithmetic were added. add/sub/mul/div
+  operations are supported for signed and unsigned 8/16/32/64 integer types
+  (both uniform and varying).
+
+* The algorithm for selecting overloaded function was extended to cover more
+  types of overloading. Handling of reference types in overloaded functions was
+  fixed. The rules for selecting the best match were changed to match C++,
+  which requires the function to be the best match for all parameters. In
+  ambiguous cases, a warning is issued, but it will be converted to an error
+  in the next release.
+
+* Explicit typecasts between any two reference types were allowed.
+
+* Implicit cast of pointer to const type to void* was disallowed.
+
+The list of other notable changes is:
+
+* Number of fixes for better debug info support.
+
+* Memory corruption bug was fixed, which caused rare but not reproducible
+  compile time fails.
+
+* Alias analysis was enabled (more aggressive optimizations are expected).
+
+* A bug involving inaccurate handling of "const" qualifier was fixed. As a
+  result, more "const" qualifiers may appear in .h files, which may cause
+  compilation errors.
+
 === v1.6.0 === (19 December 2013)
 
 A major new version of ISPC with major improvements in performance and

docs/ispc.rst

@@ -50,6 +50,7 @@ Contents:
   + `Updating ISPC Programs For Changes In ISPC 1.3`_
   + `Updating ISPC Programs For Changes In ISPC 1.5.0`_
   + `Updating ISPC Programs For Changes In ISPC 1.6.0`_
+  + `Updating ISPC Programs For Changes In ISPC 1.7.0`_
 
 * `Getting Started with ISPC`_
 
@@ -299,6 +300,32 @@ becomes a keyword and it potentially creates a conflict with existing user
 function. Also a new library function packed_store_active2() was introduced,
 which also may create a conflict with existing user functions.
 
+Updating ISPC Programs For Changes In ISPC 1.7.0
+------------------------------------------------
+
+This release contains several changes that may affect compatibility with
+older versions:
+
+* The algorithm for selecting overloaded functions was extended to cover more
+  types of overloading, and handling of reference types was fixed. At the same
+  time the old scheme, which blindly used the function with "the best score"
+  summed for all arguments, was switched to the C++ approach, which requires
+  "the best score" for each argument. If the best function doesn't exist, a
+  warning is issued in this version. It will be turned into an error in the
+  next version. A simple example: Suppose we have two functions: max(int, int)
+  and max(unsigned int, unsigned int). The new rules lead to an error when
+  calling max(int, unsigned int), as the best choice is ambiguous.
+
+* Implicit cast of pointer to const type to void* was disallowed. Use explicit
+  cast if needed.
+
+* A bug which prevented "const" qualifiers from appearing in emitted .h files
+  was fixed. Consequently, "const" qualifiers now properly appearing in emitted
+  .h files may cause compile errors in pre-existing codes.
+
+* get_ProgramCount() was moved from stdlib to examples/util/util.isph file. You
+  need to include this file to be able to use this function.
+
 
 Getting Started with ISPC
 =========================

docs/news.rst

@@ -2,6 +2,14 @@
 ispc News
 =========
 
+ispc 1.7.0 is Released
+----------------------
+
+A major new version of ISPC with several language and library extensions and
+fixes in debug info support. Binaries for all platforms are based on patched
+version on LLVM 3.4. There also performance improvements beyond switchover to
+LLVM 3.4.
+
 ispc 1.6.0 is Released
 ----------------------
 
@@ -11,7 +19,6 @@ a number of language and library extensions. Released binaries are based on
 patched LLVM 3.3 on Linux and MacOS and LLVM 3.4rc3 on Windows. Please refer
 to Release Notes for complete set of changes.
 
-
 ispc 1.5.0 is Released
 ----------------------
 

docs/template-news.txt

@@ -57,7 +57,7 @@
 %(body)s
 </div>
     <div class="clearfix"></div>
-    <div id="footer"> &copy; 2011-2013 <strong>Intel Corporation</strong> | Valid <a href="http://validator.w3.org/check?uri=referer">XHTML</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a> | ClearBlue  by: <a href="http://www.themebin.com/">ThemeBin</a>
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docs/template-perf.txt

@@ -57,7 +57,7 @@
 %(body)s
 </div>
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-    <div id="footer"> &copy; 2011-2013 <strong>Intel Corporation</strong> | Valid <a href="http://validator.w3.org/check?uri=referer">XHTML</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a> | ClearBlue  by: <a href="http://www.themebin.com/">ThemeBin</a>
+    <div id="footer"> &copy; 2011-2014 <strong>Intel Corporation</strong> | Valid <a href="http://validator.w3.org/check?uri=referer">XHTML</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a> | ClearBlue  by: <a href="http://www.themebin.com/">ThemeBin</a>
       <!-- Please Do Not remove this link, thank u -->
       </div>
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docs/template.txt

@@ -57,7 +57,7 @@
 %(body)s
 </div>
     <div class="clearfix"></div>
-    <div id="footer"> &copy; 2011-2013 <strong>Intel Corporation</strong> | Valid <a href="http://validator.w3.org/check?uri=referer">XHTML</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a> | ClearBlue  by: <a href="http://www.themebin.com/">ThemeBin</a>
+    <div id="footer"> &copy; 2011-2014 <strong>Intel Corporation</strong> | Valid <a href="http://validator.w3.org/check?uri=referer">XHTML</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a> | ClearBlue  by: <a href="http://www.themebin.com/">ThemeBin</a>
       <!-- Please Do Not remove this link, thank u -->
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