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Upgrade to v8 1.2.7
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‎deps/v8/AUTHORS‎

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Google Inc.
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Rene Rebe <rene@exactcode.de>
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Rafal Krypa <rafal@krypa.net>
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Jay Freeman <saurik@saurik.com>
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Daniel James <dnljms@gmail.com>
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Paolo Giarrusso <p.giarrusso@gmail.com>
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Daniel Andersson <kodandersson@gmail.com>
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Alexander Botero-Lowry <alexbl@FreeBSD.org>
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Craig Schlenter <craig.schlenter@gmail.com>
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Daniel Andersson <kodandersson@gmail.com>
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Daniel James <dnljms@gmail.com>
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Jay Freeman <saurik@saurik.com>
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Joel Stanley <joel.stan@gmail.com>
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Matt Hanselman <mjhanselman@gmail.com>
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Paolo Giarrusso <p.giarrusso@gmail.com>
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Rafal Krypa <rafal@krypa.net>
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Rene Rebe <rene@exactcode.de>
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Ryan Dahl <coldredlemur@gmail.com>

‎deps/v8/ChangeLog‎

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2009-06-08: Version 1.2.7
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Improved debugger and profiler support.
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Reduced compilation time by improving the handling of deferred
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code.
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Optimized interceptor accesses where the property is on the object
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on which the interceptors is attached.
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Fixed compilation problem on GCC 4.4 by changing the stack
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alignment to 16 bytes.
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Fixed handle creation to follow stric aliasing rules.
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Fixed compilation on FreeBSD.
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Introduced API for forcing the deletion of a property ignoring
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interceptors and attributes.
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2009-05-29: Version 1.2.6
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Added a histogram recording hit rates at different levels of the
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compilation cache.
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Added stack overflow check for the RegExp analysis phase. Previously a
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very long regexp graph could overflow the stack with recursive calls.
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Use a dynamic buffer when collecting log events in memory.
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Added start/stop events to the profiler log.
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Fixed infinite loop which could happen when setting a debug break while
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executing a RegExp compiled to native code.
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Fixed handling of lastIndexOf called with negative index (issue 351).
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Fixed irregular crash in profiler test (issue 358).
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Fixed compilation issues with some versions of gcc.
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2009-05-26: Version 1.2.5
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Fixed bug in initial boundary check for Boyer-Moore text
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search (issue 349).
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Fixed compilation issues with MinGW and gcc 4.3+ and added support
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for armv7 and cortex-a8 architectures. Patches by Lei Zhang and
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Craig Schlenter.
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Added a script cache to the debugger.
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Optimized compilation performance by improving internal data
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structures and avoiding expensive property load optimizations for
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code that's infrequently executed.
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Exposed the calling JavaScript context through the static API
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function Context::GetCalling().
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2009-05-18: Version 1.2.4
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Improved performance of floating point number allocation for ARM
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platforms.
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Fixed crash when using the instanceof operator on functions with
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number values in their prototype chain (issue 341).
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Optimized virtual frame operations in the code generator to speed
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up compilation time and allocated the frames in the zone.
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Made the representation of virtual frames and jump targets in the
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code generator much more compact.
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Avoided linear search for non-locals in scope code when resolving
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variables inside with and eval scopes.
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Optimized lexical scanner by dealing with whitespace as part of
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the token scanning instead of as a separate step before it.
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Changed the scavenging collector so that promoted objects do not
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reside in the old generation while their remembered set is being
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swept for pointers into the young generation.
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Fixed numeric overflow handling when compiling count operations.
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2009-05-11: Version 1.2.3
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Fixed bug in reporting of out-of-memory situations.

‎deps/v8/SConstruct‎

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ANDROID_TOP=""
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# TODO: Sort these issues out properly but as a temporary solution for gcc 4.4
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# on linux we need these compiler flags to avoid a mksnapshot segfault, avoid
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# crashes in the v8 test suite and avoid dtoa.c strict aliasing issues
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# on linux we need these compiler flags to avoid crashes in the v8 test suite
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# and avoid dtoa.c strict aliasing issues
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if os.environ.get('GCC_VERSION') == '44':
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GCC_EXTRA_CCFLAGS = ['-fno-tree-vectorize', '-fno-tree-vrp']
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GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp']
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GCC_DTOA_EXTRA_CCFLAGS = ['-fno-strict-aliasing']
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else:
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GCC_EXTRA_CCFLAGS = []

‎deps/v8/benchmarks/README.txt‎

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loading each page. Finally the literal letters in the data are
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encoded using ROT13 in a way that does not affect how the regexps
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match their input.
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Changes from Version 3 to Version 4
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===================================
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The Splay benchmark is a newcomer in version 4. It manipulates a
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splay tree by adding and removing data nodes, thus exercising the
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memory management subsystem of the JavaScript engine.
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Furthermore, all the unused parts of the Prototype library were
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removed from the RayTrace benchmark. This does not affect the running
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of the benchmark.
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Changes from Version 4 to Version 5
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===================================
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Removed duplicate line in random seed code.

‎deps/v8/benchmarks/base.js‎

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// A benchmark has a name (string) and a function that will be run to
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// do the performance measurement.
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function Benchmark(name, run) {
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// do the performance measurement. The optional setup and tearDown
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// arguments are functions that will be invoked before and after
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// running the benchmark, but the running time of these functions will
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// not be accounted for in the benchmark score.
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function Benchmark(name, run, setup, tearDown) {
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this.name = name;
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this.run = run;
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this.Setup = setup ? setup : function() { };
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this.TearDown = tearDown ? tearDown : function() { };
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}
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// Scores are not comparable across versions. Bump the version if
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// you're making changes that will affect that scores, e.g. if you add
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// a new benchmark or change an existing one.
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BenchmarkSuite.version = '3';
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BenchmarkSuite.version = '5';
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// To make the benchmark results predictable, we replace Math.random
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seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff;
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seed = ((seed + 0x165667b1) + (seed << 5)) & 0xffffffff;
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seed = ((seed + 0xd3a2646c) ^ (seed << 9)) & 0xffffffff;
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seed = ((seed + 0xd3a2646c) ^ (seed << 9)) & 0xffffffff;
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seed = ((seed + 0xfd7046c5) + (seed << 3)) & 0xffffffff;
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seed = ((seed ^ 0xb55a4f09) ^ (seed >>> 16)) & 0xffffffff;
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return (seed & 0xfffffff) / 0x10000000;
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continuation = suite.RunStep(runner);
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}
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if (continuation && typeof window != 'undefined' && window.setTimeout) {
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window.setTimeout(RunStep, 100);
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window.setTimeout(RunStep, 25);
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return;
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}
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}
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// Runs a single benchmark for at least a second and computes the
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// average time it takes to run a single iteration.
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BenchmarkSuite.prototype.RunSingle = function(benchmark) {
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BenchmarkSuite.prototype.RunSingleBenchmark = function(benchmark) {
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var elapsed = 0;
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var start = new Date();
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for (var n = 0; elapsed < 1000; n++) {
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var length = this.benchmarks.length;
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var index = 0;
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var suite = this;
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function RunNext() {
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// Run the setup, the actual benchmark, and the tear down in three
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// separate steps to allow the framework to yield between any of the
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// steps.
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function RunNextSetup() {
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if (index < length) {
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try {
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suite.RunSingle(suite.benchmarks[index++]);
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suite.benchmarks[index].Setup();
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} catch (e) {
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suite.NotifyError(e);
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return null;
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}
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return RunNext;
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return RunNextBenchmark;
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}
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suite.NotifyResult();
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return null;
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}
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return RunNext();
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function RunNextBenchmark() {
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try {
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suite.RunSingleBenchmark(suite.benchmarks[index]);
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} catch (e) {
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suite.NotifyError(e);
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return null;
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}
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return RunNextTearDown;
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}
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function RunNextTearDown() {
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try {
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suite.benchmarks[index++].TearDown();
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} catch (e) {
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suite.NotifyError(e);
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return null;
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}
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return RunNextSetup;
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}
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// Start out running the setup.
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return RunNextSetup();
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}

‎deps/v8/benchmarks/deltablue.js‎

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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// This implementation of the DeltaBlue benchmark is derived
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// from the Smalltalk implementation by John Maloney and Mario
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// Wolczko. Some parts have been translated directly, whereas
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// others have been modified more aggresively to make it feel
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// This implementation of the DeltaBlue benchmark is derived
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// from the Smalltalk implementation by John Maloney and Mario
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// Wolczko. Some parts have been translated directly, whereas
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// others have been modified more aggresively to make it feel
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// more like a JavaScript program.
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‎deps/v8/benchmarks/earley-boyer.js‎

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}
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var BgL_runzd2benchmarkzd2 = RunBenchmark;
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