Merge V8 3.9 at 3.9.24.9

http://v8.googlecode.com/svn/branches/3.9@11260

Bug: 5688872
Change-Id: Iddd944e82189d92df3fc427dc5f0d3f1b2f0c6c8

1 files changed, 271 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index ab885c09..2240ec0e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,274 @@
+2012-03-23: Version 3.9.24
+
+        Activated count-based profiler for ARM.
+
+        Fixed use of proxies as f.prototype properties. (issue 2021)
+
+        Enabled snapshots on MIPS.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-21: Version 3.9.23
+
+        Use correct arguments adaptation environment when inlining function
+        containing arguments. (Issue 2014)
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-20: Version 3.9.22
+
+        Enabled count-based profiler by default.
+
+        Implemented a hash based look-up to speed up address checks
+        in large object space (issue 853).
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-19: Version 3.9.21
+
+        Fixed push-to-trunk script (and re-push).
+
+        Added API call that identifies strings that are guaranteed only to
+        contain ASCII characters.
+
+
+2012-03-19: Version 3.9.20
+
+        Fixed declarations escaping global strict eval. (Issue 1624)
+
+        Fixed wrapping of receiver for non-strict callbacks. (Issue 1973)
+
+        Fixed function declarations overwriting read-only global properties.
+        (Chromium issue 115452)
+
+        Fixed --use-strict flag in combination with --harmony[-scoping].
+
+        Debugger: naive implementation of "step into Function.prototype.bind".
+
+        Debugger: added ability to set script source from within OnBeforeCompile
+
+        Added flag to always call DebugBreak on abort.
+
+        Re-enabled constructor inlining and inline === comparison with boolean
+        constants. (Issue 2009)
+
+        Don't use an explicit s0 in ClampDoubleToUint8. (Issue 2004)
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-14: Version 3.9.19
+
+        Ensure there is a smi check of the receiver for global load and call
+        ICs (Chromium issue 117794).
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-13: Version 3.9.18
+
+        Ensure consistency of Math.sqrt on Intel platforms.
+
+        Remove static initializers in v8. (issue 1859)
+
+        Add explicit dependency on v8_base in the GYP-based build.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-12: Version 3.9.17
+
+        Fixed VFP detection through compiler defines. (issue 1996)
+
+        Add Code-related fields to postmortem metadata.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-09: Version 3.9.16
+
+        Added basic interface inference for modules (behind the --harmony flag).
+
+        Added Object.is, Number.isFinite, Number.isNaN.
+
+        Updated the Unicode tables to Unicode version 6.1.0.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-06: Version 3.9.15
+
+        Fix the heap profiler crash caused by memory layout changes between
+        passes.
+
+        Fix Error.prototype.toString to throw TypeError. (issue 1980)
+
+        Fix double-rounding in strtod for MinGW. (issue 1062)
+
+        Fix corrupted snapshot serializaton on ia32. (Chromium issue v8/1985)
+
+        Performance and stability improvements on all platforms.
+
+
+2012-03-01: Version 3.9.14
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-29: Version 3.9.13
+
+        Added code kind check before preparing for OSR. (issue 1900, 115073)
+
+        Fixed issue 1802: Pass zone explicitly to zone-allocation on x64 and
+        ARM.
+
+        Ported string construct stub to x64. (issue 849)
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-28: Version 3.9.12
+
+        Fixed the negative lookup stub to handle deleted entries in a
+        dictionary. (issue 1964)
+
+        Added a new API where the host can supply a callback function. The
+        callback function can resolve the location of a return address on stack
+        to the location where a return-address rewriting profiler stashed the
+        original return address.
+
+        Fixed Chromium issue http://crbug.com/115646: When compiling for-in
+        pass correct context value to the increment instruction.
+
+        Fixed issue 1853: Update breakpoints set with partial file name after
+        compile.
+
+
+2012-02-27: Version 3.9.11
+
+        Made 'module' a context-sensitive keyword (V8 issue 1957).
+
+
+2012-02-24: Version 3.9.10
+
+        Fixed V8 issues 1322, 1772 and 1969.
+
+        Conformance improvements.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-23: Version 3.9.9
+
+        Supported fast case for-in in Crankshaft.
+
+        Sped up heap snapshot serialization and dominators construction.
+
+        Randomized allocation addresses on windows. (Chromium issue 115151)
+
+        Fixed compilation with MinGW-w64. (issue 1943)
+
+        Fixed incorrect value of assignments to non-extensible properties.
+
+        Fixed a crash bug in generated code on ia32.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-21: Version 3.9.8
+
+        Fixed memory leak and missing #include in StartupDataDecompressor
+        (issue 1960).
+
+        Renamed static methods to avoid shadowing virtual methods and fix Clang
+        C++11 compile error.
+
+        Fixed sequence of element access in array builtins (issue 1790).
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-16: Version 3.9.7
+
+        Fixed V8 issues 1322, 1878, 1942, 1945 and Chromium issue 113924.
+
+        Fixed GCC-4.7 warnings.
+
+        Added Navier-Stokes benchmark.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-14: Version 3.9.6
+
+        Fixed template-related linker error. (issue 1936)
+
+        Allowed inlining of functions containing object literals.  (issue 1322)
+
+        Added --call-graph-size option to tickprocessor.  (issue 1937)
+
+        Heap Snapshot maximum size limit is too low for really big apps. At the
+        moment the limit is 256MB.  (Chromium issue 113015)
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-09: Version 3.9.5
+
+        Removed unused command line flags.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-08: Version 3.9.4
+
+        Properly initialize element-transitioning array literals on ARM.
+        (issue 1930)
+
+        Bug fixes on all platforms.
+
+
+2012-02-07: Version 3.9.3
+
+        When rethrowing an exception, print the stack trace of its original
+        site instead of rethrow site (Chromium issue 60240).
+
+        Increased size of small stacks from 32k to 64k to avoid hitting limits
+        in Chromium (Chromium issue 112843).
+
+
+2012-02-06: Version 3.9.2
+
+        Added timestamp to --trace-gc output. (issue 1932)
+
+        Heap profiler reports implicit references.
+
+        Optionally export metadata with libv8 to enable debuggers to inspect V8
+        state.
+
+
+2012-02-02: Version 3.9.1
+
+        Fixed memory leak in NativeObjectsExplorer::FindOrAddGroupInfo
+        (Chromium issue 112315).
+
+        Fixed a crash in dev tools (Chromium issue 107996).
+
+        Added 'dependencies_traverse': 1 to v8 GYP target.
+
+        Performance and stability improvements on all platforms.
+
+
+2012-02-01: Version 3.9.0
+
+        Reduced memory use immediately after starting V8.
+
+        Stability fixes and performance improvements on all platforms.
+
+
 2012-01-26: Version 3.8.9
 
         Flush number string cache on GC (issue 1605).