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Merge remote-tracking branch 'origin/topic/vern/changes-news-updates'

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* origin/topic/vern/changes-news-updates:
  elevate CHANGES descriptions and add a NEWS item for -O ZAM
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Tim Wojtulewicz 2021-09-18 16:35:26 -07:00
commit c28fd3b610
3 changed files with 14 additions and 77 deletions
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84
CHANGES
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@ -17,15 +17,9 @@
4.2.0-dev.165 | 2021-09-14 18:39:34 -0700 4.2.0-dev.165 | 2021-09-14 18:39:34 -0700
* still more nit-squashing (Vern Paxson, Corelight) * Addressed a number of low-level issues found by Coverity and compiler warnings (Vern Paxson, Corelight)
* avoiding using back() for an empty std::string (Vern Paxson, Corelight) * Fixed https://github.com/zeek/zeek/issues/1776 (Vern Paxson, Corelight)
* additional tweaks to address some compiler warnings (Vern Paxson, Corelight)
* tweaks to address some compiler warnings (Vern Paxson, Corelight)
* tweaks to address concerns flagged by Coverity (Vern Paxson, Corelight)
4.2.0-dev.159 | 2021-09-14 13:00:50 -0700 4.2.0-dev.159 | 2021-09-14 13:00:50 -0700
@ -51,79 +45,17 @@
4.2.0-dev.150 | 2021-09-08 11:44:15 -0700 4.2.0-dev.150 | 2021-09-08 11:44:15 -0700
* fix race condition in btest output ordering (Vern Paxson, Corelight) * Fixes and btests for vector coercion overflows, typing, and holes (Vern Paxson, Corelight)
* whoops, forgot to canonicalize filenames in new btest (Vern Paxson, Corelight) * Improve -u reporting, distinguishing between maybe-vs-definite problems (Vern Paxson, Corelight)
* extend btest to include a coercion overflow (Vern Paxson, Corelight) * "-a ZAM" testing baseline alternative (Vern Paxson, Corelight)
* fixed a typo in a comment (Vern Paxson, Corelight) * The main ZAM code, now available via -O ZAM (Vern Paxson, Corelight)
* fixes for vector coercion overflows, typing, and holes (Vern Paxson, Corelight) * Rewrote tracking of variable definition ranges to be much more performant (Vern Paxson, Corelight)
* factoring out logic to check for overflows during coercions (Vern Paxson, Corelight) * Extend ID/Expr/Stmt classes to have associated optimization information (Vern Paxson, Corelight)
* test case for vector coercions, including holes (Vern Paxson, Corelight)
* low-level cleanups found by code review (Vern Paxson, Corelight)
* additional conversions of size() to empty() checks that were missed previously (Vern Paxson, Corelight)
* indentation nit (Vern Paxson, Corelight)
* flag loop that has slightly subtle logic (Vern Paxson, Corelight)
* use ## to start major sections (Vern Paxson, Corelight)
* a number of low-level tweaks from code review (Vern Paxson, Corelight)
* use std::find_if rather than explicit loop (Vern Paxson, Corelight)
* switch simple loops that don't need indices to being iterator-based (Vern Paxson, Corelight)
* use container empty() rather than size() where appropriate (Vern Paxson, Corelight)
* Baseline variants for "-a zam" (Vern Paxson, Corelight)
* new "-a ZAM" testing baseline alternative (Vern Paxson, Corelight)
* updates for usage issues: support for -uu, maybe/definitely distinctions (Vern Paxson, Corelight)
* enable reducer to track folding to enable constant propagation (Vern Paxson, Corelight)
* switch to ID definition regions; reworked driver functions; more info for reporting uncompilable functions (Vern Paxson, Corelight)
* README for using ZAM (Vern Paxson, Corelight)
* the main ZAM code (Vern Paxson, Corelight)
* reworking of command-line options related to script optimization (Vern Paxson, Corelight)
* definitions of ZAM operations (Vern Paxson, Corelight)
* standalone templator for ZAM operations (Vern Paxson, Corelight)
* computing of identifier definition regions (Vern Paxson, Corelight)
* for parse-only, only do script analysis if looking for usage issues (Vern Paxson, Corelight)
* tracking of optimization information associated with identifiers (Vern Paxson, Corelight)
* tracking of optimization information associated with expressions (Vern Paxson, Corelight)
* tracking of optimization information associated with statements (Vern Paxson, Corelight)
* simple AST optimization for ?: operator (Vern Paxson, Corelight)
* track implicit assignments when profiling, associate counts with assignees (Vern Paxson, Corelight)
* preparing for a new Stmt subclass for ZAM function bodies (Vern Paxson, Corelight)
* provide ZAM execution with direct access to ZVal elements (Vern Paxson, Corelight)
* factoring to support debugging of Dict iterators - no semantic changes (Vern Paxson, Corelight)
* low-level tidying/nits - no semantic changes (Vern Paxson, Corelight)
4.2.0-dev.112 | 2021-09-03 18:12:12 +0000 4.2.0-dev.112 | 2021-09-03 18:12:12 +0000

5
NEWS
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@ -17,6 +17,11 @@ New Functionality
`python3 auxil/run-clang-format/run-clang-format.py --clang-format-executable `which clang-format-12` -r src -i` `python3 auxil/run-clang-format/run-clang-format.py --clang-format-executable `which clang-format-12` -r src -i`
- Experimental support for speeding up Zeek script execution by compiling
scripts to a low-level form called "ZAM". You activate this feature by
specifying ``-O ZAM`` on the command line. See
``src/script_opt/ZAM/README.md`` for more information.
Changed Functionality Changed Functionality
--------------------- ---------------------

2
VERSION
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@ -1 +1 @@
4.2.0-dev.174 4.2.0-dev.177