JavaScriptCore/ChangeLog

2008-08-13  Geoffrey Garen  <ggaren@apple.com>

        Reviewed by Oliver Hunt.
        
        Nixed a PIC branch from JSObject::getOwnPropertySlot, by forcing
        fillGetterProperty, which references a global function pointer,
        out-of-line.
        
        .2% SunSpider speedup, 4.3% access-nbody speedup, 8.7% speedup on a
        custom property access benchmark for objects with one property.

        * kjs/JSObject.cpp:
        (KJS::JSObject::fillGetterPropertySlot):

2008-08-13  Alp Toker  <alp@nuanti.com>

        Reviewed by Eric Seidel.

        https://bugs.webkit.org/show_bug.cgi?id=20349
        WTF::initializeThreading() fails if threading is already initialized

        Fix threading initialization logic to support cases where
        g_thread_init() has already been called elsewhere.

        Resolves database-related crashers reported in several applications.

        * wtf/ThreadingGtk.cpp:
        (WTF::initializeThreading):

2008-08-13  Brad Hughes <bhughes@trolltech.com>

        Reviewed by Simon.

        Fix compiling of QtWebKit in release mode with the Intel C++ Compiler for Linux

        The latest upgrade of the intel compiler allows us to compile all of
        Qt with optimizations enabled (yay!).

        * JavaScriptCore.pro:

2008-08-12  Oliver Hunt  <oliver@apple.com>

        Reviewed by Geoff Garen.

        Add peephole optimisation to 'op_not... jfalse...' (eg. if(!...) )

        This is a very slight win in sunspider, and a fairly substantial win
        in hot code that does if(!...), etc.

        * VM/CodeGenerator.cpp:
        (KJS::CodeGenerator::retrieveLastUnaryOp):
        (KJS::CodeGenerator::rewindBinaryOp):
        (KJS::CodeGenerator::rewindUnaryOp):
        (KJS::CodeGenerator::emitJumpIfFalse):
        * VM/CodeGenerator.h:

2008-08-12  Dan Bernstein  <mitz@apple.com>

        - JavaScriptCore part of <rdar://problem/6121636>
          Make fast*alloc() abort() on failure and add "try" variants that
          return NULL on failure.

        Reviewed by Darin Adler.

        * JavaScriptCore.exp: Exported tryFastCalloc().
        * VM/RegisterFile.h:
        (KJS::RegisterFile::RegisterFile): Removed an ASSERT().
        * kjs/JSArray.cpp:
        (KJS::JSArray::putSlowCase): Changed to use tryFastRealloc().
        (KJS::JSArray::increaseVectorLength): Ditto.
        * kjs/ustring.cpp:
        (KJS::allocChars): Changed to use tryFastMalloc().
        (KJS::reallocChars): Changed to use tryFastRealloc().
        * wtf/FastMalloc.cpp:
        (WTF::fastZeroedMalloc): Removed null checking of fastMalloc()'s result
        and removed extra call to InvokeNewHook().
        (WTF::tryFastZeroedMalloc): Added. Uses tryFastMalloc().
        (WTF::tryFastMalloc): Renamed fastMalloc() to this.
        (WTF::fastMalloc): Added. This version abort()s if allocation fails.
        (WTF::tryFastCalloc): Renamed fastCalloc() to this.
        (WTF::fastCalloc): Added. This version abort()s if allocation fails.
        (WTF::tryFastRealloc): Renamed fastRealloc() to this.
        (WTF::fastRealloc): Added. This version abort()s if allocation fails.
        (WTF::do_malloc): Made this a function template. When the abortOnFailure
        template parameter is set, the function abort()s on failure to allocate.
        Otherwise, it sets errno to ENOMEM and returns zero.
        (WTF::TCMallocStats::fastMalloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastMalloc): Added. Does not abort() on
        failure.
        (WTF::TCMallocStats::fastCalloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastCalloc): Added. Does not abort() on
        failure.
        (WTF::TCMallocStats::fastRealloc): Defined to abort() on failure.
        (WTF::TCMallocStats::tryFastRealloc): Added. Does not abort() on
        failure.
        * wtf/FastMalloc.h: Declared the "try" variants.

2008-08-11  Adam Roben  <aroben@apple.com>

        Move WTF::notFound into its own header so that it can be used
        independently of Vector

        Rubberstamped by Darin Adler.

        * JavaScriptCore.vcproj/WTF/WTF.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        Added NotFound.h to the project.
        * wtf/NotFound.h: Added. Moved the notFound constant here...
        * wtf/Vector.h: ...from here.

2008-08-11  Alexey Proskuryakov  <ap@webkit.org>

        Reviewed by Mark Rowe.

        <rdar://problem/6130393> REGRESSION: PhotoBooth hangs after launching under TOT Webkit

        * API/JSContextRef.cpp: (JSGlobalContextRelease): Corrected a comment.

        * kjs/collector.cpp: (KJS::Heap::~Heap): Ensure that JSGlobalData is not deleted while
        sweeping the heap.

== Rolled over to ChangeLog-2008-08-10 ==