From 9a3141515f051b6622f564ba75c171822854a7ac Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Tue, 14 May 2019 11:44:11 +0000 Subject: remove unboxed code chunk (wip1) --- js/src/jit/IonBuilder.cpp | 80 ++++++----------------------------------------- 1 file changed, 9 insertions(+), 71 deletions(-) (limited to 'js/src/jit/IonBuilder.cpp') diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp index 54d05cac4..28fa53aa8 100644 --- a/js/src/jit/IonBuilder.cpp +++ b/js/src/jit/IonBuilder.cpp @@ -9012,8 +9012,6 @@ IonBuilder::jsop_getelem() } obj = maybeUnboxForPropertyAccess(obj); - if (obj->type() == MIRType::Object) - obj = convertUnboxedObjects(obj); bool emitted = false; @@ -10137,7 +10135,7 @@ IonBuilder::jsop_setelem() MDefinition* value = current->pop(); MDefinition* index = current->pop(); - MDefinition* object = convertUnboxedObjects(current->pop()); + MDefinition* object = current->pop(); trackTypeInfo(TrackedTypeSite::Receiver, object->type(), object->resultTypeSet()); trackTypeInfo(TrackedTypeSite::Index, index->type(), index->resultTypeSet()); @@ -11496,8 +11494,6 @@ IonBuilder::jsop_getprop(PropertyName* name) } obj = maybeUnboxForPropertyAccess(obj); - if (obj->type() == MIRType::Object) - obj = convertUnboxedObjects(obj); BarrierKind barrier = PropertyReadNeedsTypeBarrier(analysisContext, constraints(), obj, name, types); @@ -11939,49 +11935,6 @@ IonBuilder::getPropTryComplexPropOfTypedObject(bool* emitted, fieldPrediction, fieldTypeObj); } -MDefinition* -IonBuilder::convertUnboxedObjects(MDefinition* obj) -{ - // If obj might be in any particular unboxed group which should be - // converted to a native representation, perform that conversion. This does - // not guarantee the object will not have such a group afterwards, if the - // object's possible groups are not precisely known. - TemporaryTypeSet* types = obj->resultTypeSet(); - if (!types || types->unknownObject() || !types->objectOrSentinel()) - return obj; - - BaselineInspector::ObjectGroupVector list(alloc()); - for (size_t i = 0; i < types->getObjectCount(); i++) { - TypeSet::ObjectKey* key = obj->resultTypeSet()->getObject(i); - if (!key || !key->isGroup()) - continue; - - if (UnboxedLayout* layout = key->group()->maybeUnboxedLayout()) { - AutoEnterOOMUnsafeRegion oomUnsafe; - if (layout->nativeGroup() && !list.append(key->group())) - oomUnsafe.crash("IonBuilder::convertUnboxedObjects"); - } - } - - return convertUnboxedObjects(obj, list); -} - -MDefinition* -IonBuilder::convertUnboxedObjects(MDefinition* obj, - const BaselineInspector::ObjectGroupVector& list) -{ - for (size_t i = 0; i < list.length(); i++) { - ObjectGroup* group = list[i]; - if (TemporaryTypeSet* types = obj->resultTypeSet()) { - if (!types->hasType(TypeSet::ObjectType(group))) - continue; - } - obj = MConvertUnboxedObjectToNative::New(alloc(), obj, group); - current->add(obj->toInstruction()); - } - return obj; -} - bool IonBuilder::getPropTryDefiniteSlot(bool* emitted, MDefinition* obj, PropertyName* name, BarrierKind barrier, TemporaryTypeSet* types) @@ -12163,14 +12116,11 @@ IonBuilder::getPropTryUnboxed(bool* emitted, MDefinition* obj, PropertyName* nam MDefinition* IonBuilder::addShapeGuardsForGetterSetter(MDefinition* obj, JSObject* holder, Shape* holderShape, const BaselineInspector::ReceiverVector& receivers, - const BaselineInspector::ObjectGroupVector& convertUnboxedGroups, bool isOwnProperty) { MOZ_ASSERT(holder); MOZ_ASSERT(holderShape); - obj = convertUnboxedObjects(obj, convertUnboxedGroups); - if (isOwnProperty) { MOZ_ASSERT(receivers.empty()); return addShapeGuard(obj, holderShape, Bailout_ShapeGuard); @@ -12194,10 +12144,8 @@ IonBuilder::getPropTryCommonGetter(bool* emitted, MDefinition* obj, PropertyName JSObject* foundProto = nullptr; bool isOwnProperty = false; BaselineInspector::ReceiverVector receivers(alloc()); - BaselineInspector::ObjectGroupVector convertUnboxedGroups(alloc()); if (!inspector->commonGetPropFunction(pc, &foundProto, &lastProperty, &commonGetter, - &globalShape, &isOwnProperty, - receivers, convertUnboxedGroups)) + &globalShape, &isOwnProperty, receivers)) { return true; } @@ -12213,8 +12161,7 @@ IonBuilder::getPropTryCommonGetter(bool* emitted, MDefinition* obj, PropertyName // If type information is bad, we can still optimize the getter if we // shape guard. obj = addShapeGuardsForGetterSetter(obj, foundProto, lastProperty, - receivers, convertUnboxedGroups, - isOwnProperty); + receivers, isOwnProperty); if (!obj) return false; } @@ -12381,15 +12328,12 @@ IonBuilder::getPropTryInlineAccess(bool* emitted, MDefinition* obj, PropertyName MOZ_ASSERT(*emitted == false); BaselineInspector::ReceiverVector receivers(alloc()); - BaselineInspector::ObjectGroupVector convertUnboxedGroups(alloc()); - if (!inspector->maybeInfoForPropertyOp(pc, receivers, convertUnboxedGroups)) + if (!inspector->maybeInfoForPropertyOp(pc, receivers)) return false; if (!canInlinePropertyOpShapes(receivers)) return true; - obj = convertUnboxedObjects(obj, convertUnboxedGroups); - MIRType rvalType = types->getKnownMIRType(); if (barrier != BarrierKind::NoBarrier || IsNullOrUndefined(rvalType)) rvalType = MIRType::Value; @@ -12692,7 +12636,7 @@ bool IonBuilder::jsop_setprop(PropertyName* name) { MDefinition* value = current->pop(); - MDefinition* obj = convertUnboxedObjects(current->pop()); + MDefinition* obj = current->pop(); bool emitted = false; startTrackingOptimizations(); @@ -12765,10 +12709,8 @@ IonBuilder::setPropTryCommonSetter(bool* emitted, MDefinition* obj, JSObject* foundProto = nullptr; bool isOwnProperty; BaselineInspector::ReceiverVector receivers(alloc()); - BaselineInspector::ObjectGroupVector convertUnboxedGroups(alloc()); if (!inspector->commonSetPropFunction(pc, &foundProto, &lastProperty, &commonSetter, - &isOwnProperty, - receivers, convertUnboxedGroups)) + &isOwnProperty, receivers)) { trackOptimizationOutcome(TrackedOutcome::NoProtoFound); return true; @@ -12783,8 +12725,7 @@ IonBuilder::setPropTryCommonSetter(bool* emitted, MDefinition* obj, // If type information is bad, we can still optimize the setter if we // shape guard. obj = addShapeGuardsForGetterSetter(obj, foundProto, lastProperty, - receivers, convertUnboxedGroups, - isOwnProperty); + receivers, isOwnProperty); if (!obj) return false; } @@ -13146,15 +13087,12 @@ IonBuilder::setPropTryInlineAccess(bool* emitted, MDefinition* obj, } BaselineInspector::ReceiverVector receivers(alloc()); - BaselineInspector::ObjectGroupVector convertUnboxedGroups(alloc()); - if (!inspector->maybeInfoForPropertyOp(pc, receivers, convertUnboxedGroups)) + if (!inspector->maybeInfoForPropertyOp(pc, receivers)) return false; if (!canInlinePropertyOpShapes(receivers)) return true; - obj = convertUnboxedObjects(obj, convertUnboxedGroups); - if (receivers.length() == 1) { if (!receivers[0].group) { // Monomorphic store to a native object. @@ -13884,7 +13822,7 @@ IonBuilder::jsop_setaliasedvar(EnvironmentCoordinate ec) bool IonBuilder::jsop_in() { - MDefinition* obj = convertUnboxedObjects(current->pop()); + MDefinition* obj = current->pop(); MDefinition* id = current->pop(); bool emitted = false; -- cgit v1.2.3