Merge branch 'master' of https://github.com/gvansickle/ucg

* 'master' of https://github.com/gvansickle/ucg:
  Updated NEWS.md for release 0.3.3.  Bumped version number in configure.ac.
  Added some comments on pcmpestrm's Equal Ordered mode.

NEWS.md

@@ -1,5 +1,13 @@
 # NEWS file for the UniversalCodeGrep project.
 
+## [0.3.3] - 2016-12-30
+
+UniversalCodeGrep (ucg) 0.3.3 is a minor bugfix release.
+
+## Fixed
+- Resolved issue with SSE4.2 literal string matching not working correctly.
+- Resolved legitimate Coverity issue in atomic compare/exchange template.
+
 ## [0.3.2] - 2016-12-29
 
 UniversalCodeGrep (ucg) 0.3.2 is a minor bugfix release with some major under-the-hood changes.

configure.ac

@@ -19,7 +19,7 @@ dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
 LT_PREREQ([2.4.2])
-AC_INIT([UniversalCodeGrep], [0.3.2], [https://github.com/gvansickle/ucg/issues], [], [https://gvansickle.github.io/ucg/])
+AC_INIT([UniversalCodeGrep], [0.3.3], [https://github.com/gvansickle/ucg/issues], [], [https://gvansickle.github.io/ucg/])
 
 AC_CONFIG_SRCDIR([src/Globber.cpp])
 AC_CONFIG_HEADERS([config.h])

src/libext/memory.hpp

@@ -139,6 +139,11 @@ inline const void* memmem_short_pattern(const void *mem_to_search, size_t memlen
 			if(unlikely(cf))
 			{
 				// Some bits in xmm0 are set.  Found at least the start of a match, maybe a full match, maybe more than one match.
+				// Note that while Intel's documentation doesn't make this very clear, pcmpestrm's Equal Ordered mode does in fact
+				// flag a partial match at the end of a 16-byte search string chunk.  I.e.:
+				//   frag1    : "0123456789abcdef"
+				//   xmm_patt : "efghijk"
+				//   xmm0     : "0000000000000010"
 
 				// Get the bitmask into a non-SSE register.
 				/// @todo This depends on GCC's definition of __m128i as a vector of 2 long longs.