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* Bring back markObjects(), this time generatedLars Knoll2017-11-141-2/+1
| | | | | | | | Doing the marking of objects in a function instead of using the table seems to be somewhat faster. Change-Id: I9ec00cc0264f9a15c69b285db493bee31d99bf96 Reviewed-by: Erik Verbruggen <[email protected]>
* Simplify JSCallData constructionLars Knoll2017-11-071-1/+1
| | | | | Change-Id: Ic53532edae9a209aa7125af6f00a9d993d74f1a3 Reviewed-by: Erik Verbruggen <[email protected]>
* Get rid of JSCallData::call()Lars Knoll2017-11-071-4/+4
| | | | | Change-Id: I6b99e9a7102b3dcb6a7699f54b6456eba6248699 Reviewed-by: Erik Verbruggen <[email protected]>
* Rename JSCall to JSCallDataLars Knoll2017-11-071-1/+1
| | | | | | | | As, this is going to change in a simple stack based structure to keep pointers to the data to pass to calls. Change-Id: Ia9aa3f81ee3eeba36affd16aac7b2fe97d59aea9 Reviewed-by: Erik Verbruggen <[email protected]>
* Always set the correct FunctionObject when calling JS functionsLars Knoll2017-09-021-8/+7
| | | | | | | | | Renamed ScopedCallData to JSCall, enforced passing a JS FunctionObject to it, and added call() and callAsConstructor() methods to it. Change-Id: I30db65c9765c2896b5909fe2105c0934c6dad861 Reviewed-by: Simon Hausmann <[email protected]>
* Move ScopedCallData and ScopedStackFrame into a separate fileLars Knoll2017-09-011-0/+1
| | | | | Change-Id: I9ae42aa7a811aa93fe0950725e9d253a0c5e8dba Reviewed-by: Simon Hausmann <[email protected]>
* Merge remote-tracking branch 'origin/5.9' into devLiang Qi2017-06-061-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: .qmake.conf src/qml/jsruntime/qv4argumentsobject.cpp src/qml/jsruntime/qv4arraydata.cpp src/qml/jsruntime/qv4context.cpp src/qml/jsruntime/qv4context_p.h src/qml/jsruntime/qv4errorobject.cpp src/qml/jsruntime/qv4functionobject.cpp src/qml/jsruntime/qv4internalclass.cpp src/qml/jsruntime/qv4lookup.cpp src/qml/jsruntime/qv4managed.cpp src/qml/jsruntime/qv4managed_p.h src/qml/jsruntime/qv4object.cpp src/qml/jsruntime/qv4object_p.h src/qml/jsruntime/qv4qmlcontext.cpp src/qml/jsruntime/qv4runtime.cpp src/qml/jsruntime/qv4vme_moth.cpp src/qml/memory/qv4heap_p.h src/qml/memory/qv4mm.cpp src/qml/memory/qv4mm_p.h src/qml/memory/qv4mmdefs_p.h src/quick/scenegraph/util/qsgdistancefieldutil.cpp src/quick/scenegraph/util/qsgdistancefieldutil_p.h tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp Change-Id: I7ed925d4f5d308f872a58ddf51fdce0c8494ec9c
| * Re-add some inline property storageLars Knoll2017-05-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that not using any inline property storage comes at a relatively high price in terms of memory consumption, as we always need to also create a memberData for any object. This avoids the memberData creation in quite a few cases, as we use the additional padding we have up to the 32 byte boundary given by the memory manager to store some property data. This complicates property access somewhat. To avoid performance regressions because of this, add specialized QV4::Lookup functions that optimize for properties that are inline or in the memberData struct. Change seems to be performance neutral on v8-bench on x86_64, but reduces peak memory usage when running the benchmark by around 20%. Change-Id: I0127d31a2d6038aaa540c4c4a1156f45ca3b7464 Reviewed-by: Simon Hausmann <[email protected]> Reviewed-by: Robin Burchell <[email protected]>
* | Merge remote-tracking branch 'origin/5.9' into HEADSimon Hausmann2017-03-231-1/+1
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: src/plugins/qmltooling/qmldbg_debugger/qv4datacollector.cpp src/qml/jit/qv4assembler.cpp src/qml/jit/qv4assembler_p.h src/qml/jit/qv4isel_masm.cpp src/qml/jsruntime/qv4context.cpp src/qml/jsruntime/qv4context_p.h src/qml/jsruntime/qv4engine.cpp src/qml/jsruntime/qv4vme_moth.cpp src/qml/memory/qv4mmdefs_p.h Change-Id: I9966750b7cd9106b78e4c4779f12b95a481cca40
| * Prepare run-time method calling mechanism for cross-compilationSimon Hausmann2017-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current way of encoding the offsetof() of the method_ members in QV4::Runtime is not portable when cross-compiling from a 64-bit host (where the offsetof would be calculated on) to a 32-bit target (where the offset would be different), or vice versa. In preparation for making this work, this patch first replaces the direct use of the run-time members with use through a void * and an enum for indexing. This gives us some type-safety in some places and will also allow for a translation of the pointer offset from host pointer indexing to target pointer indexes. As a bonus we can avoid going through the engine->runtime indirection in the interpreter altogether and call the static methods right away. Task-number: QTBUG-58666 Change-Id: I3cd6459523923a9719408317fa729bca19c2bf3c Reviewed-by: Lars Knoll <[email protected]>
* | Make writes to ArrayData write-barrier safeLars Knoll2017-03-091-31/+34
| | | | | | | | | | Change-Id: I2e46100fe72fd83b36b3195130eefce5289d1627 Reviewed-by: Simon Hausmann <[email protected]>
* | Unify mark handling for MemberData and ArrayDataLars Knoll2017-03-091-72/+72
| | | | | | | | | | | | | | | | Introduce a ValueArray class, that defines an array of Values at the end of a Heap Object. Change-Id: I00efbf6f5839a6687dd5bc5fc037ec8f06e0936e Reviewed-by: Simon Hausmann <[email protected]>
* | New mark table implementationLars Knoll2017-03-091-23/+1
|/ | | | | | | | | | | | | | | | | | | Automatically generate a table containing the data where JS Values and pointers are in objects in the JS heap. This will allow making the GC mark phase a lot more efficient. A bit of a special hack is currently required for MemberData and ArrayData, as they have a variable length, and we need to read the size from the object. We keep backwards compatibility with the old markObjects() functions for now (calling them if they are defined). Some further work on QV4::String and in a few other places is required before we can get remove the compatibility. Change-Id: I78528ace67e886bdbe4a4330c9677c7fc9f08a33 Reviewed-by: Simon Hausmann <[email protected]>
* Improve SimpleArrayData::markObjectsLars Knoll2017-01-251-2/+8
| | | | | | | Avoid an expensive modulo operation per Value to be marked. Change-Id: Ibe0adcf0fce73ff760a6adf983c746e66f183332 Reviewed-by: Simon Hausmann <[email protected]>
* Merge remote-tracking branch 'origin/5.6' into 5.8Simon Hausmann2016-10-131-12/+21
|\ | | | | | | Change-Id: I175b27337b534c0b8f46a4a792d2c43cde73ffc4
| * V4: Fix usage of QV4::Value tags/typesErik Verbruggen2016-10-131-12/+17
| | | | | | | | | | | | | | | | These two were mixed, but have completely different values. Task-number: QTBUG-56471 Change-Id: Ifbf6da3032335ea89bfbc3acde17f64a571b9dc0 Reviewed-by: Simon Hausmann <[email protected]>
| * Fix developer-build with gcc 6Allan Sandfeld Jensen2016-10-101-0/+4
| | | | | | | | | | | | | | | | Locally suppress bogus tautological compare warnings. Task-number: QTBUG-56266 Change-Id: Ic1b554982a778cdd89c8047483523c44d53bbadd Reviewed-by: Thiago Macieira <[email protected]>
* | QML: Make all context objects trivialErik Verbruggen2016-09-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change also adds a check to the d() calls for Managed, verifies that the object has been initialized. This is only done for debug builds. To prevent other code from tripping the check, a number of other classes are either marked as trivial, or do initialization in the constructors. Because of template function changes in them memory manager (those now call init() instead of in-place new), String has an extra parameter to force it to temporarily use an old/unmodified template function. Change-Id: I8c35161ce7680835d830638b6d21498c5129b02b Reviewed-by: Simon Hausmann <[email protected]>
* | Merge remote-tracking branch 'origin/5.7' into devLiang Qi2016-06-211-5/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: src/quick/items/qquickflickable_p_p.h src/quick/items/qquickpathview_p_p.h tests/auto/qml/qqmltypeloader/tst_qqmltypeloader.cpp Change-Id: I77664a095d8a203e07a021c9d5953e02b8b99a1e
| * | Merge remote-tracking branch 'origin/5.6' into 5.7Liang Qi2016-06-201-5/+5
| |\| | | | | | | | | | | | | | | | | | | | | | Conflicts: src/qml/jit/qv4targetplatform_p.h src/quick/accessible/qaccessiblequickitem_p.h Change-Id: Ic95075a5fad81ec997a61561bd65979dfa3b9d4d
| | * V4: Always set the tag when boxing a pointer in QV4::Value.Erik Verbruggen2016-06-161-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | All setters now store tags, so no-one can play loosy-goosy with the boxed values (and accidentally forget to "tag" a value, resulting in random garbage). Change-Id: Ia0b78aa038d3ff46d5292b14bd593de310da16a0 Reviewed-by: Simon Hausmann <[email protected]>
* | | Merge remote-tracking branch 'origin/5.7' into devLiang Qi2016-05-131-1/+7
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: src/qml/jsapi/qjsengine.cpp src/qml/qml/qqmlengine_p.h src/quick/items/qquickanchors.cpp src/quick/items/qquickanimatedimage_p_p.h src/quick/items/qquickitem_p.h tests/auto/qml/qqmlecmascript/testtypes.h tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp tests/benchmarks/qml/creation/tst_creation.cpp Change-Id: I65861e32f16e8a04c7090a90231627e1ebf6ba6f
| * | Merge remote-tracking branch 'origin/5.6' into 5.7Liang Qi2016-04-271-1/+7
| |\| | | | | | | | | | | | | | | | | | | | | | Conflicts: src/quick/items/qquickimagebase.cpp src/imports/layouts/plugin.cpp Change-Id: I5f48474df4034a1347ec74795c85d369a55b6b21
| | * Fix memory corruption when calling Array.unshift()Simon Hausmann2016-04-141-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dequeue offset won't wrap around when n > offset. [ChangeLog][QtQml] Fix crash with Array.unshift() Task-number: QTBUG-52065 Change-Id: I5e8b89ec964cd6397100442a5239254bca989a3f Reviewed-by: Robin Burchell <[email protected]>
* | | Convert the first batch of runtime functionsLars Knoll2016-04-111-1/+1
|/ / | | | | | | | | | | | | | | Convert them to the new calling convention through function pointers in the execution engine. Change-Id: Iecc54c9512f7231a04eb1659490a5d56118ff66a Reviewed-by: Simon Hausmann <[email protected]>
* / Updated license headersJani Heikkinen2016-01-191-14/+20
|/ | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: Ic36f1a0a1436fe6ac6eeca8c2375a79857e9cb12 Reviewed-by: Lars Knoll <[email protected]>
* Don't return Property * from ArrayData::insertLars Knoll2015-09-151-3/+6
| | | | | Change-Id: Ibabee04a17f5b2f3ba993cd61cbe64c897031f71 Reviewed-by: Simon Hausmann <[email protected]>
* Simplify Object::getValueLars Knoll2015-09-151-2/+2
| | | | | | | | | | Object::getValue only needs the value/property getter. Because of this it's enough to pass it the Value stored in the member/arrayData and the property attributes. Like this we avoid the reinterpret_cast to a Property pointer. Change-Id: Ib6873526f9db22ed0e607e3617be5729b15271ab Reviewed-by: Simon Hausmann <[email protected]>
* Remove type punning from QV4::Value.Erik Verbruggen2015-07-241-31/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The union in QV4::Value is used to do type punning. In C++, this is compiler-defined behavior. For example, Clang and GCC will try to detect it and try to do the proper thing. However, it can play havoc with Alias Analysis, and it is not guaranteed that some Undefined Behavior (or Compiler depenedent behavior) might occur. The really problematic part is the struct inside the union: depending on the calling convention and the register size, it results in some exciting code. For example, the AMD64 ABI specifies that a struct of two values of INTEGER class can be passed in separate registers when doing a function call. Now, if the AA in the compiler looses track of the fact that the tag overlaps with the double, you might get: ecx := someTag ... conditional jumps double_case: rdx := xorredDoubleValue callq someWhere If the someWhere function checks for the tag first, mayhem ensues: the double value in rdx does not overwrite the tag that is passed in ecx. Changing the code to do reinterpret_cast<>s might also give problems on 32bit architectures, because there is a double, whose size is not the same as the size of the tag, which could confuse AA. So, to fix this, the following is changed: - only have a quint64 field in the QV4::Value, which has the added benefit that it's very clear for the compiler that it's a POD - as memcpy is the only approved way to ensure bit-by-bit "conversion" between types (esp. FP<->non-FP types), change all conversions to use memcpy. Use bitops (shift/and/or) for anything else. - only use accessor functions for non-quint64 values As any modern compiler has memcpy as an intrinsic, the call will be replaced with one or a few move instructions. The accessor functions also get inlined, the bitops get optimized, so in all cases the compiler can generate the most compact code possible. This patch obsoletes f558bc48585c69de36151248c969a484a969ebb4 (which had the exact aliassing problem of the double and the tag as described above). Change-Id: I60a39d8564be5ce6106403a56a8de90943217006 Reviewed-by: Ulf Hermann <[email protected]>
* Merge remote-tracking branch 'origin/5.5' into devSimon Hausmann2015-06-041-3/+2
|\ | | | | | | | | | | | | | | | | | | | | Conflicts: src/qml/jsruntime/qv4engine_p.h src/quick/items/qquickitemsmodule.cpp src/quick/items/qquicktext.cpp src/quick/util/qquickpixmapcache.cpp tests/auto/quick/qquickwindow/tst_qquickwindow.cpp Change-Id: I90ecaad6a4bfaa4f36149a7463f4d7141f4a516a
| * Fix memory corruption in array handlingSimon Hausmann2015-05-081-3/+2
| | | | | | | | | | | | | | | | | | | | SimpleArrayData's markObjects() implementation did not mark the entries correctly. When the dequeue offset was non-zero, we would end up marking values that may have been garbage collected earlier. Task-number: QTBUG-45888 Change-Id: Iacec350ccc76399ad4d16138af50acf22b2809db Reviewed-by: Lars Knoll <[email protected]>
* | Get rid of qv4value_inl_p.h and replace it by qv4typedvalue_p.hLars Knoll2015-04-241-0/+1
| | | | | | | | | | | | | | | | This is a cleaner separation and further reduces include dependencies in the definitions of our basic data structured. Change-Id: I18aa86cdea0c0dfbc16075d4d617af97e638811e Reviewed-by: Simon Hausmann <[email protected]>
* | Rename Heap::Base::as() to cast()Lars Knoll2015-04-211-27/+27
| | | | | | | | | | | | | | | | The as() methods in other places to dynamic type checking, whereas cast() methods are basically the same as a static_cast. Change-Id: Iacd0174824b41b8fad05d6b55b1e62e3b44a31db Reviewed-by: Simon Hausmann <[email protected]>
* | More cleanupsLars Knoll2015-04-211-1/+1
| | | | | | | | | | | | | | | | Get rid of Value::asObject(), and pass const Managed pointers into some more vtable methods. Change-Id: Ia4f427d5fd8868f77b4015d1ce5424d32bfc2115 Reviewed-by: Simon Hausmann <[email protected]>
* | Cleanup some of the casting codeLars Knoll2015-03-201-1/+1
| | | | | | | | | | | | | | | | Get rid of value_cast, and move the Managed::as() method into Value. Change-Id: I440ac44ae77f4fda1a8a837383fe631f432f6532 Reviewed-by: Simon Hausmann <[email protected]>
* | Wrap members in Object in a Heap::PointerLars Knoll2015-03-201-27/+27
| | | | | | | | | | Change-Id: I0d132592487255027c215da21fbec15b23b00624 Reviewed-by: Simon Hausmann <[email protected]>
* | Move memory management related functionality into it's own folderLars Knoll2015-03-021-1/+1
|/ | | | | | | | | Start moving the memory related functionality into it's own folder. This will simplify refactoring of the GC related functionality later on. Change-Id: I70ec6f512af7a7897625afb84d914c17572b0ccd Reviewed-by: Simon Hausmann <[email protected]>
* Update copyright headersJani Heikkinen2015-02-121-7/+7
| | | | | | | | | Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I61120571787870c0ed17066afb31779b1e6e30e9 Reviewed-by: Iikka Eklund <[email protected]>
* CleanupsLars Knoll2015-01-231-2/+2
| | | | | | | | Simplify some code in BooleanObject Simplify access to call arguments and thisObject Change-Id: I2f8e844019bc587385608beb02f05b15f827535c Reviewed-by: Simon Hausmann <[email protected]>
* Remove all remaining usages of ValueRefLars Knoll2015-01-231-1/+1
| | | | | Change-Id: Icd76d3d03fac2e57530e55f8ec15b97109dcdcbc Reviewed-by: Simon Hausmann <[email protected]>
* Get rid of most uses of ValueRefLars Knoll2015-01-231-9/+9
| | | | | | | | | | | | Instead pass a const Value & into the functions With our new inheritance structure, we can get rid of ValueRef and instead simply pass a pointer to a Value again. Pointers to Values are safe to use again now, as they are now guaranteed to be in a place where the GC knows about them. Change-Id: I44c606fde764db3993b8128fd6fb781d3a298e53 Reviewed-by: Simon Hausmann <[email protected]>
* Move the internalClass pointer into Heap::ObjectLars Knoll2015-01-211-2/+2
| | | | | | | | The other classes that derive from Heap::Base don't need it at all. So get rid of it there and save a pointer. Change-Id: I9c5df2e43cd6eeac2e6e41f3d3b8077d3afbc8f2 Reviewed-by: Simon Hausmann <[email protected]>
* Move vtable out of internalClassLars Knoll2015-01-201-2/+2
| | | | | | | | | | | | | | | | We can move the internalClass to Object later on, and such save having the internalClass on lots of Heap objects. This commit basically adds and starts making use of a new vtable pointer in Heap::Base. In addition, the construction methods in the memory manager now automatically setup the correct vtable. Removing the vtable code from InternalClass and moving it into Object will come in a separate commit Change-Id: If49e8d73c769bf65bf47fe4dbf8b9546c8019dbc Reviewed-by: Simon Hausmann <[email protected]>
* Get rid of hasAccessorProperty in Heap::BaseLars Knoll2015-01-121-2/+7
| | | | | | | | | This shouldn't affect performance as we can just as well check for cases where we need to take the slow path differently. Change-Id: I4b9f69c39e9e64b437820ca3a6ea43e8877f2cf3 Reviewed-by: Simon Hausmann <[email protected]>
* Make Property uses GC safeLars Knoll2014-12-201-1/+1
| | | | | Change-Id: I5aa41a07a2d25e5c8a2d64bfa58a55fcd7aaf77e Reviewed-by: Simon Hausmann <[email protected]>
* Fix Object::arrayData() accessor to return a heap objectLars Knoll2014-12-111-21/+20
| | | | | Change-Id: Iffc82c2f415251d73bb7446848399b54b16589c9 Reviewed-by: Simon Hausmann <[email protected]>
* Move readonly accessors into Heap::ArrayDataLars Knoll2014-12-101-20/+5
| | | | | | | | these methods don't modify the object, so it's safe to have them there and this simplifies quite a bit of the code. Change-Id: I2f591758efba9cb8d17b956bc7c02e2d7a468ea4 Reviewed-by: Simon Hausmann <[email protected]>
* Operate directly on Heap::ArrayData where possibleLars Knoll2014-11-221-108/+114
| | | | | Change-Id: I87dfb3e9a07673b5c405619eab8b6ee292d5c097 Reviewed-by: Simon Hausmann <[email protected]>
* Reduce usage of Object::arrayData()Lars Knoll2014-11-221-63/+64
| | | | | | | | This will simplify porting over to returning Heap::ArrayData from the method (as required for the new GC). Change-Id: I5fb9ca7dfeab1aa63cc17c8948ef0966716f1bcb Reviewed-by: Simon Hausmann <[email protected]>
* Let the memory manager operate on Heap::Base objects, not ManagedLars Knoll2014-11-211-2/+3
| | | | | Change-Id: Ib5c9b51dbf9c69abeda088094e6348dd545bf3c8 Reviewed-by: Simon Hausmann <[email protected]>
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