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* Protect CallData usage against cross-compilation word size differencesSimon Hausmann2017-03-171-1/+1
| | | | | | | | | | Ensure via static asserts that the members always have the same offsets. Since the class has standard layout, we can also use the C++11 offsetof macro instead of qOffsetOf. Task-number: QTBUG-58666 Change-Id: I7dcecf517c771c7081334cd9d0b7ae133b23b23a Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Include the interpreter codegen and QML cache saving code in qmldevtoolsSimon Hausmann2017-01-281-1/+5
| | | | | Change-Id: Ic3f1476b87bfa7ab0c280c928e9ac97f92698336 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Merge remote-tracking branch 'origin/5.8' into devLiang Qi2016-10-181-0/+2
|\ | | | | | | | | | | | | | | | | | | Conflicts: src/qml/jsruntime/qv4variantobject.cpp src/qml/types/qquickworkerscript.cpp src/quick/scenegraph/util/qsgdefaultpainternode_p.h tools/qmljs/qmljs.cpp Change-Id: I876242714ec8c046238d8fd673a5ace2455b2b59
| * Make the Moth interpreter configurableLars Knoll2016-10-101-0/+2
| | | | | | | | | | | | Change-Id: I2b784820c4e39a7932f81bfee9ce78e01a2e96b5 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | Merge remote-tracking branch 'origin/5.8' into devLiang Qi2016-09-211-1/+1
|\| | | | | | | | | | | | | Conflicts: src/qml/compiler/qv4isel_moth_p.h Change-Id: I8e86a649d1ef8ad27dc66cc8c290093b2faabc69
| * Fix binding dependencies when used in together with functionsSimon Hausmann2016-08-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | When a function called from a binding would access a scope or context property, we would end up registering those dependencies as permanent dependencies in the expression and set m_permanentDependenciesRegistered to true. Then after the binding evaluation itself, we would not end up registering the real binding's permanent dependencies. Change-Id: I3b6c1c181aa064d535362c736b5b2bbc4f576ba9 Done-with: Erik Task-number: QTBUG-54394 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* | qv4isel_moth_p.h: add missing 'override'Anton Kudryavtsev2016-09-191-60/+60
| | | | | | | | | | | | | | ... and drop redundant 'virtual' Change-Id: I673295422fd5920f874c379899e986f584903440 Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* | V4: Replace a QSet with a QVector in calculateOptionalJumpsErik Verbruggen2016-08-231-1/+2
|/ | | | | | | | | | | | | | Instead of storing a bunch of statement IDs in a QSet, the parent basic block of the terminator statement (specifically: the jump) is used as an index into a bit vector. If the bit is set, this indicates that the jump can be omitted. This reduces the number of allocations from 1 hash node per optional jump, to 1 per function. The allocation will also be smaller then a hash node. Change-Id: Ia34468534b96dd9cefa837523bf89ad233de92e8 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* V4: Leave out Debug and Line istructions on -no-qml-debugUlf Hermann2016-07-281-0/+2
| | | | | Change-Id: Ida861af5636a1605783f7af4bf88cb46b44f9022 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Improve robustness of qml disk cachingSimon Hausmann2016-07-231-4/+5
| | | | | | | | Perform various basic checks before proceeding to load an existing cache file, including the qt version, architecture, data structure version and others. Change-Id: Ie822b056e944ac120643aad260e97f62616688bf Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
* Add support for saving/loading the moth interpreter byte codeSimon Hausmann2016-07-211-1/+4
| | | | | | | | With the JIT and moth supporting persistence, we can enable the disk cache tests unconditionally. Change-Id: I6d6652411237001433a32a2de21d1f78f51b43ef Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Added basic loading of compilation units from diskSimon Hausmann2016-07-191-0/+2
| | | | | | | | This remains hidden behind the QML_DISK_CACHE flag until all backends support it and the verification code is in place. Change-Id: Ic77c64e20a2dc4c43473c47640e09f8070237e85 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Revert "QML: When available, use QQmlAccessors to read properties."Simon Hausmann2016-07-141-2/+2
| | | | | | | | | | | This reverts commit f6fee09942de7901a708c4e16db0c7c82550e8c5. The accessor pointers were embedded in the generated machine/byte code, which makes it non-relocatable. As discussed, for the moment the ability to have relocatable code is prioritized. But the goal is to re-enable accessor accelerated property access through lookups. Change-Id: I18ec9ce31901c1fae3e58ac0c41bc87791e8c380 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* QML: When available, use QQmlAccessors to read properties.Erik Verbruggen2016-04-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When a property is read from a QObject or the QML scope object, and we can statically resolve the type to qreal/QObject/int/bool/QString, and the property has an accessor declared for it, then use that accessor to do the read. This collapses the path of e.g.: Runtime::getQmlScopeObjectProperty -> QObjectWrapper::getProperty -> QObjectWrapper::getProperty -> LoadProperty -> QQmlAccessor::read (all of which do various checks for all the stuff mentioned above) to: Runtime::accessQmlScopeObjectQRealProperty -> QQmlAccessor::read which is a simple 4-line function, and doesn't need to do any check. According to valgrind, this saves 170 instructions on x86 for the simple binding: Item { width: height } Change-Id: I0761d01e8f1a3c13ecbffe2d8e0317ce9c0a4db0 Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* 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 <lars.knoll@theqtcompany.com>
* QML: Fix typeof context property.Erik Verbruggen2015-10-271-0/+1
| | | | | | | | This was missing from f21e8c641af6b2d10f0d7e7e0fc6a755dab3673c. Task-number: QTBUG-48524 Change-Id: I5cc6a979d965a1ef6b7fbc916a7ca9df868b459a Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* Add missing "We mean it" comments to private headers.Friedemann Kleint2015-10-061-0/+11
| | | | | | Task-number: QTBUG-48594 Change-Id: Ifc207938de7f0c8995fc712df92665f222612647 Reviewed-by: Alan Alpert <aalpert@blackberry.com>
* Access the id objects through a specialized runtime methodLars Knoll2015-08-121-1/+0
| | | | | | | | This brings us one step closer to getting rid of the QQmlContextWrapper. Change-Id: Ied57f4c174c2ebd95096310a4ad4c0c28787e7a4 Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* Access context properties through the qml contextLars Knoll2015-08-101-1/+0
| | | | | | | And get rid of another temp in the IR. Change-Id: I039393e020e5141f1986aee276246c30fd8057f3 Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* Use the QmlContext to access properties of the scope objectLars Knoll2015-08-101-1/+3
| | | | | | | | | Add some runtime methods to access properties of the scope object directly (using the QmlContext), and generate proper code to call those. Change-Id: I0b29357c9a3b9ad53ba568ec6cb763e8ecb10f21 Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* Add ability to retrieve and use the QmlContext from our generated codeLars Knoll2015-08-101-0/+1
| | | | | | | | | | | | | | Our generated code (JIT and interpreter) should operate on the QML context to retrieve QML related things. That's better than operating on 4 different temps. So this commit introduces the QML context as a temp in the code we generate for QML. The next commits will move things over to use that context with specialized runtime methods instead of using generic subscript/get calls on the different subobjects. Change-Id: Ia05cf339de9cdd23003f35cf78ede17d2590f8de Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
* 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 <iikka.eklund@theqtcompany.com>
* Fix QQmlExpression/QQmlScriptString/QQmlBinding crashesSimon Hausmann2014-10-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | In the QQmlScriptString we store the binding id and it is an index into the runtimeFunctions array of the compilation unit. However we don't store the compilation unit and instead in QQmlBinding and QQmlExpression try to retrieve it from the cache via the context url (we have the context after all). That turns out to be not a reliable way, as sometimes the URL might slightly differ from the originally compiled cache (qrc:/// turning to qrc:/ maybe). Consequently the type is (unnecessarily) compiled again and unfortunately not _linked_, therefore the runtime functions array is empty. Another option is that when the component was created from a QByteArray, then no entry exists in the cache in the first place. This patch addresses the problem by storing a reference to the compilation unit in the QQmlContextData. That we can safely retrieve and it'll make sure the compilation unit also stays alive. In the process of that the manual reference counting was switched over to QQmlRefCount and QQmlRefPointer for QV4::CompilationUnit. Task-number: QTBUG-41193 Change-Id: I9111f9a3b65618e453954abcd789c039e65a94f7 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Update license headers and add new licensesJani Heikkinen2014-08-251-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: I84a565e2e0caa3b76bf291a7d188a57a4b00e1b0 Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
* Accelerate property lookups for C++-based QObject singletons.Michael Brasser2014-08-071-1/+1
| | | | | Change-Id: Icbdf06a077014db5dd57cba42f84591433ec4196 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* qml: Make ownership of CompiledUnit more clearHolger Hans Peter Freyther2014-07-211-1/+1
| | | | | | | | | | | | The coverity scan utility didn't understand the code flow and assumed the compiledData would be leaked. Use a QScopedPointer and have the ::backendCompileStep() forward the ownership. From what I see the code has not leaked memory. Fixes: CID 10605, CID 10607 Change-Id: I7759f681871bbe12e2aa320a5f39c47c70f4e4e0 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* V4: Split arguments/locals from temps.Erik Verbruggen2014-05-231-43/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a couple of reasons to split the temporaries off from the arguments and locals: Temporaries are invisible, and changes to them cannot be observed. On the other hand, arguments and locals are visible, and writes to them can be seen from other places (nested functions), or by using the arguments array. So, in practice these correspond to memory locations. (One could argue that if neither nested functions, nor eval(), nor arguments[] is used, the loads/stores are invisible too. But that's an optimization, and changing locals/arguments to temporaries can be done in a separate pass.) Because of the "volatile" nature of arguments and locals, their usage cannot be optimized. All optimizations (SSA construction, register allocation, copy elimination, etc.) work on temporaries. Being able to easily ignore all non-temporaries has the benefit that optimizations can be faster. Previously, Temps were not uniquely numbered: argument 1, local 1, and temporary 1 all had the same number and were distinguishable by their type. So, for any mapping from Temp to something else, a QHash was used. Now that Temps only hold proper temporaries, the indexes do uniquely identify them. Add to that the fact that after transforming to SSA form all temporaries are renumbered starting from 0 and without any holes in the numbering, many of those datastructures can be changed to simple vectors. That change gives a noticeable performance improvement. One implication of this change is that a number of functions that took a Temp as their argument, now need to take Temp-or-ArgLocal, so Expr. However, it turns out that there are very few places where that applies, as many of those places also need to take constants or names. However, explicitly separating memory loads/stores for arguments/locals from temporaries adds the benefit that it's now easier to do a peep-hole optimizer for those load/store operations in the future: when a load is directly preceded by a store, it can be eliminated if the value is still available in a temporary. Change-Id: I4114006b076795d9ea9fe3649cdb3b9d7b7508f0 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fixes to for...in statementLars Knoll2014-03-191-1/+1
| | | | | | | | | | | Properly convert the argument to an object if it's not null or undefined as mandated by the standard. Add a similar test case for the with statement. Change-Id: Idd8e245e8dae4803eb0e2010e3d43bb912670444 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Fixes to breakpoint handlingLars Knoll2014-03-071-0/+2
| | | | | | | | Make sure stepping works correctly, and we always break at a valid breakpoint. Change-Id: I6a3032b3ae204484b8a92b2031904a7f681c7f80 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Determine whether or not an object literal requires a sparse array at ↵Simon Hausmann2014-02-241-1/+1
| | | | | | | compile time Change-Id: Ieb7f6ee97a4f251f1e2369850ebb9e2931f84ac1 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Clean up object literal handling with integral indicesSimon Hausmann2014-02-241-3/+1
| | | | | | | | | | | | | | | | | | | | | * Object literals with array indices are now created with one run-time call, instead of an initial one for non-integral keys followed by sub-sequent define_builtin_property calls. * Cleaned up propert name retrieval. Instead of using a visitor, it's easier to define a virtual method on the PropertyName type. The visitor doesn't buy us much as it's not possible to recurse within property names, and this way we can use it also from the function scanner to correctly determine the number of arguments needed for object literal initalizations. * Similarly the duplicated/common name member for all property assignments has been moved into PropertyName, for convenient access without AST casts. * Removed now unused builtin_define_property/settergetter functions from IR, run-time and moth. Change-Id: I90d54c81ea5f3f500f4f4a9c14f7caf5135e7f9f Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Clean up our internal namespacesLars Knoll2014-02-231-69/+69
| | | | | | | | QQmlJS::MASM -> QV4::JIT QQmlJS::V4IR -> QV4::IR Change-Id: I707e8990459114a699c200fe3c22cec3c8df1afc Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Reapply 612785f39e325b0578be89e09b0e32d7d08d471e fixing GCC warningsThiago Macieira2014-02-161-1/+1
| | | | | | | | See 612785f39e325b0578be89e09b0e32d7d08d471e for details. The warning is exactly the same as before, with the exact same solution as before. Change-Id: I2f6cbc64234696f1d240611f376ab5daf8d0f89c Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* CleanupsLars Knoll2014-01-311-1/+1
| | | | | | | | | | Remove SafeValue, it was used to port over to an exact GC. Since we now have that, we can now safely merge it with QV4::Value again. Also rename SafeString to StringValue for better naming consistency. Change-Id: I8553d1bec5134c53996f6b0d758738a0ec8a2e4d Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Rename some filesLars Knoll2014-01-311-1/+1
| | | | | | | | | | | | Rename qv4value_def_p.h -> qv4value_p.h and qv4value_p.h to qv4value_inl_p.h. It makes more sense to have the class definition in the file that is named after the class and move the inline methods into a _inl file. Doing this now, as I expect we'll be needing a few more _inl files soon. Change-Id: Ib59e9380e9e976254c6b4369574157f39b1b5f51 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Add support for accelerated property access to QML types and namespace supportSimon Hausmann2013-11-281-1/+1
| | | | | | | | | | | * Resolve lookups in namespaces at compile time and instruct the SSA optimizer to eliminate reads from the namespace (QQmlTypeWrapper) if possible. For example access to attached properties of types (i.e. MyNameSpace.ListView.isCurrentItem) requires neither reading the namespace nor the type. * Add support for accelerated lookup of attached properties Change-Id: Ib0b66404ed7e70e1d4a46a1ac8218743a4cc8608 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Initial support for accelerated property access to QML singletons and enumsSimon Hausmann2013-11-251-0/+1
| | | | | | | | | With this patch we determine the meta-object of singletons, propagate it into the IR and load them separately using a dedicated run-time function. In addition enums in singletons and QML types are resolved at compile time. Change-Id: I01ce1288391b476d1c9af669cb2987a44c885703 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* IR Cleanup, resolve ID objects through array subscriptsSimon Hausmann2013-11-251-1/+1
| | | | | | | | | | | | ...instead of a special MEMBER type. This allows removing the type member from V4IR::Member altogether (and thus unshadow from V4IR::Expr::type). By not requiring the base of a id lookup member expression to be a NAME, we can also speed up repeated id lookups by fetching the id object array wrapper only once per function. Change-Id: I3e9b8f498d32ace4a0cc2254f49e02ecc124f79c Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Improve type interference for QObject propertiesSimon Hausmann2013-11-251-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | Propagate QObject properties in member expressions across temporaries as part of the type interference SSA pass. This replaces the earlier attempt to resolving QObject properties in fieldMemberExpression() in the codegen, but it was incomplete and now things like the following are fully resolved: var tmp = blah.somePropertyThatReturnsAQQuickItem; <-- QQuickItem property return type propagated into tmp var width = tmp.width; <-- and picked up here again to resolve the index of width instead of by name With this patch Temp gets a helper structure with a function pointer, initialized to aid the resolution of properties in Qt meta objects. This structure is propagated into the temps until it reaches the next member expression that uses the temp. Similarly QObjectType is added as IR type, next to VarType. The resolution inside the SSA type interference pass also requires passing through the QQmlEngine from the upper caller levels, in order to resolve the property type to a potential QMetaObject property. Change-Id: I14c98fa455db57603da46613ce49c174d0944291 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Fix property dependency generation for accelerated QML QObject propertiesSimon Hausmann2013-11-121-2/+1
| | | | | | | | | | | | | | The previous approach of collecting the dependencies through an IR visitor doesn't work, because it relies on a fixed structure - for example MEMBER(NAME, prop) - which we can't guarantee (it's usually MEMBER(TEMP, prop)). But it turns out that we can only pre-calculate dependencies for context, scope or id properties, so we can do that right away in the QML specific JS codegen, store that information in the IR function and use it from there in the data structure generator as well as in the isel as a parameter to getQObjectProperty to tell the run-time whether capture is required or not. Change-Id: I33711c3420d6534c653c2a6a4284f0fc12e941cf Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* V4 interpreter: remove stack-slot allocator.Erik Verbruggen2013-11-121-4/+0
| | | | | | | | | | The life-ranges are only valid when the IR is in SSA form. So the use of them in the interpreter after converting out of SSA form introduced bugs. Instead, allocate a stack-slot for each unique temporary, and re-use the code for this from the JIT. Change-Id: I294f1116064f0b85996cf96a0b408b41a3c785e2 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Move conversion of this object into generated codeLars Knoll2013-11-051-0/+1
| | | | | | | | | | | | When a non strict mode function uses the this object, we need to make sure it's being correctly converted into a object before being accessed. So far this was being done by ScriptFunction::call. Move this into the generated code to avoid overhead for methods not using 'this', and simplify our ScriptFunction::call() implementation. Change-Id: I739f4a89d29ed8082ce59e48d1523776224fc29d Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Speed up lookups of imported scriptsSimon Hausmann2013-10-311-1/+1
| | | | | | | | | | The QQmlContextData stores the JS objects of imported scripts in a QList<PersistentValue>. Instead of indexing into that list, this patch changes ctxt->importedScripts to be a JavaScript array, that in the IR we can index via subscript. Change-Id: Ie2c35fb5294a20a0b7084bb51d19671a27195fec Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Implement loading of resolved imported scriptsSimon Hausmann2013-10-311-1/+2
| | | | | | | | We can resolve the use of names that refer to imported scripts at compile time and load them at run-time by index through context->importedScripts. Change-Id: I681b19e7d68dbf3b9a68af00b4cea2a9254c2d78 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Implement setting of values to resolved QObject propertiesSimon Hausmann2013-10-311-0/+1
| | | | | | | | After the resolution of a property, we can set it by index at run-time instead of via name resolution. Change-Id: I479599dabe343cf9e6582dcda12291aebfcce418 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Initial support for resolving meta-property access for the scope and context ↵Simon Hausmann2013-10-311-0/+3
| | | | | | | | | | | | | | | | | objects at QML compile time This avoids having to do a string lookup for ids and in the import cache at run-time, before we can do a string hash lookup in the property cache. Instead we resolve final properties in the context and scope object at compile time and look them up at run-time using their index instead. The dependencies to these properties are also tracked separately and recorded in the compiled data. This is merely the initial patch. There's a lot left to do, such as having specialized getter and setters for specific property types. Setters are missing altogether right now and will fall back to name lookup. Change-Id: If3cb4e7c9454ef4850a615f0935b311c9395b165 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Speed up id object lookupsSimon Hausmann2013-10-291-0/+1
| | | | | | | | | | | | | | | | | We can resolve lookups for objects referenced by id at QML compile time and use a run-time helper to extract the id object out of the QML context data by index instead of name. Dependencies to id objects are also tracked at compile time and registered separately before entering the generated function code. The lookup of id objects is encoded in the IR as special member lookups. Members will also then in the future be used to for property lookups in context and scope properties, as well as any other property lookups in QObjects where we can determine the meta-object. Change-Id: I36cf3ceb11b51a983da6cad5b61c3bf574acc20a Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Rework IR code generation for try/catch/finallyLars Knoll2013-10-291-0/+1
| | | | | | | | | | | | | | | | | | Simplify the generated code. Add a special block to catch exceptions thrown inside a catch() statement. store the exception on the stack when entering finally and rethrow it at the end. This ensure correct behavior for break/continue/return statements inside finally. Don't check for exceptions after calling push_catch_scope and pop_scope in the JIT'ed code. This can lead to infinite loops when throwing inside an exception handler. Change-Id: I67e9325794e2fd25b0773b21e02fbaadb43faab0 Change-Id: Ic1ea9c0c43eec1d49177dc1ab4552a1da04e96fe Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Rework exception handlingLars Knoll2013-10-291-2/+2
| | | | | | | | | | | | | | Start the work to remove c++ exceptions from our JS exception handling. Rather rely on engine->hasException. Check the flag after we return from any runtime call in the JIT. Implement new try/catch handling code in qv4codegen and for the JIT that doesn't rely on exceptions. As an added bonus, we can remove the Try statement in the IR. Change-Id: Ic95addd6ae03371c43c47e04cac26afdce23a061 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* V4: Remove more jumps.Erik Verbruggen2013-10-101-0/+1
| | | | | | | | | | | | | | | | | | | | | Do not generate jump instructions when the target immediately follows the current basic block, even if there are intermediate jumps in between as long as they jump to the same basic block. In the IR snippet below, no jumps will be generated at all. … L8: goto L6; L12: goto L6; L6: goto L4; L11: goto L4; L4: goto L2; L10: goto L2; L2: …. Before this change, the gotos in L8, L6, and L2 were still generated. Change-Id: I718ed0d41c603a6905f2279b782cd9e9cafb7d55 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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