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-rw-r--r--js/src/jit/IonBuilder.cpp192
1 files changed, 4 insertions, 188 deletions
diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp
index 28fa53aa8..af85011be 100644
--- a/js/src/jit/IonBuilder.cpp
+++ b/js/src/jit/IonBuilder.cpp
@@ -32,7 +32,6 @@
#include "vm/EnvironmentObject-inl.h"
#include "vm/NativeObject-inl.h"
#include "vm/ObjectGroup-inl.h"
-#include "vm/UnboxedObject-inl.h"
using namespace js;
using namespace js::jit;
@@ -6392,7 +6391,7 @@ IonBuilder::createThisScriptedSingleton(JSFunction* target, MDefinition* callee)
JSObject* templateObject = inspector->getTemplateObject(pc);
if (!templateObject)
return nullptr;
- if (!templateObject->is<PlainObject>() && !templateObject->is<UnboxedPlainObject>())
+ if (!templateObject->is<PlainObject>())
return nullptr;
if (templateObject->staticPrototype() != proto)
return nullptr;
@@ -6429,7 +6428,7 @@ IonBuilder::createThisScriptedBaseline(MDefinition* callee)
JSObject* templateObject = inspector->getTemplateObject(pc);
if (!templateObject)
return nullptr;
- if (!templateObject->is<PlainObject>() && !templateObject->is<UnboxedPlainObject>())
+ if (!templateObject->is<PlainObject>())
return nullptr;
Shape* shape = target->lookupPure(compartment->runtime()->names().prototype);
@@ -7718,8 +7717,6 @@ IonBuilder::jsop_initprop(PropertyName* name)
if (templateObject->is<PlainObject>()) {
if (!templateObject->as<PlainObject>().containsPure(name))
useSlowPath = true;
- } else {
- MOZ_ASSERT(templateObject->as<UnboxedPlainObject>().layout().lookup(name));
}
} else {
useSlowPath = true;
@@ -8178,8 +8175,7 @@ IonBuilder::maybeMarkEmpty(MDefinition* ins)
static bool
ClassHasEffectlessLookup(const Class* clasp)
{
- return (clasp == &UnboxedPlainObject::class_) ||
- (clasp == &UnboxedArrayObject::class_) ||
+ return (clasp == &UnboxedArrayObject::class_) ||
IsTypedObjectClass(clasp) ||
(clasp->isNative() && !clasp->getOpsLookupProperty());
}
@@ -10970,11 +10966,8 @@ IonBuilder::getDefiniteSlot(TemporaryTypeSet* types, PropertyName* name, uint32_
}
// Definite slots will always be fixed slots when they are in the
- // allowable range for fixed slots, except for objects which were
- // converted from unboxed objects and have a smaller allocation size.
+ // allowable range for fixed slots.
size_t nfixed = NativeObject::MAX_FIXED_SLOTS;
- if (ObjectGroup* group = key->group()->maybeOriginalUnboxedGroup())
- nfixed = gc::GetGCKindSlots(group->unboxedLayout().getAllocKind());
uint32_t propertySlot = property.maybeTypes()->definiteSlot();
if (slot == UINT32_MAX) {
@@ -11031,8 +11024,6 @@ IonBuilder::getUnboxedOffset(TemporaryTypeSet* types, PropertyName* name, JSValu
return UINT32_MAX;
}
- key->watchStateChangeForUnboxedConvertedToNative(constraints());
-
if (offset == UINT32_MAX) {
offset = property->offset;
*punboxedType = property->type;
@@ -11565,11 +11556,6 @@ IonBuilder::jsop_getprop(PropertyName* name)
if (!getPropTryDefiniteSlot(&emitted, obj, name, barrier, types) || emitted)
return emitted;
- // Try to emit loads from unboxed objects.
- trackOptimizationAttempt(TrackedStrategy::GetProp_Unboxed);
- if (!getPropTryUnboxed(&emitted, obj, name, barrier, types) || emitted)
- return emitted;
-
// Try to inline a common property getter, or make a call.
trackOptimizationAttempt(TrackedStrategy::GetProp_CommonGetter);
if (!getPropTryCommonGetter(&emitted, obj, name, types) || emitted)
@@ -12085,34 +12071,6 @@ IonBuilder::loadUnboxedValue(MDefinition* elements, size_t elementsOffset,
return load;
}
-bool
-IonBuilder::getPropTryUnboxed(bool* emitted, MDefinition* obj, PropertyName* name,
- BarrierKind barrier, TemporaryTypeSet* types)
-{
- MOZ_ASSERT(*emitted == false);
-
- JSValueType unboxedType;
- uint32_t offset = getUnboxedOffset(obj->resultTypeSet(), name, &unboxedType);
- if (offset == UINT32_MAX)
- return true;
-
- if (obj->type() != MIRType::Object) {
- MGuardObject* guard = MGuardObject::New(alloc(), obj);
- current->add(guard);
- obj = guard;
- }
-
- MInstruction* load = loadUnboxedProperty(obj, offset, unboxedType, barrier, types);
- current->push(load);
-
- if (!pushTypeBarrier(load, types, barrier))
- return false;
-
- trackOptimizationSuccess();
- *emitted = true;
- return true;
-}
-
MDefinition*
IonBuilder::addShapeGuardsForGetterSetter(MDefinition* obj, JSObject* holder, Shape* holderShape,
const BaselineInspector::ReceiverVector& receivers,
@@ -12356,45 +12314,6 @@ IonBuilder::getPropTryInlineAccess(bool* emitted, MDefinition* obj, PropertyName
return true;
}
- if (receivers[0].shape) {
- // Monomorphic load from an unboxed object expando.
- spew("Inlining monomorphic unboxed expando GETPROP");
-
- obj = addGroupGuard(obj, receivers[0].group, Bailout_ShapeGuard);
- obj = addUnboxedExpandoGuard(obj, /* hasExpando = */ true, Bailout_ShapeGuard);
-
- MInstruction* expando = MLoadUnboxedExpando::New(alloc(), obj);
- current->add(expando);
-
- expando = addShapeGuard(expando, receivers[0].shape, Bailout_ShapeGuard);
-
- Shape* shape = receivers[0].shape->searchLinear(NameToId(name));
- MOZ_ASSERT(shape);
-
- if (!loadSlot(expando, shape, rvalType, barrier, types))
- return false;
-
- trackOptimizationOutcome(TrackedOutcome::Monomorphic);
- *emitted = true;
- return true;
- }
-
- // Monomorphic load from an unboxed object.
- ObjectGroup* group = receivers[0].group;
- if (obj->resultTypeSet() && !obj->resultTypeSet()->hasType(TypeSet::ObjectType(group)))
- return true;
-
- obj = addGroupGuard(obj, group, Bailout_ShapeGuard);
-
- const UnboxedLayout::Property* property = group->unboxedLayout().lookup(name);
- MInstruction* load = loadUnboxedProperty(obj, property->offset, property->type, barrier, types);
- current->push(load);
-
- if (!pushTypeBarrier(load, types, barrier))
- return false;
-
- trackOptimizationOutcome(TrackedOutcome::Monomorphic);
- *emitted = true;
return true;
}
@@ -12669,13 +12588,6 @@ IonBuilder::jsop_setprop(PropertyName* name)
bool barrier = PropertyWriteNeedsTypeBarrier(alloc(), constraints(), current, &obj, name, &value,
/* canModify = */ true);
- if (!forceInlineCaches()) {
- // Try to emit stores to unboxed objects.
- trackOptimizationAttempt(TrackedStrategy::SetProp_Unboxed);
- if (!setPropTryUnboxed(&emitted, obj, name, value, barrier, objTypes) || emitted)
- return emitted;
- }
-
// Add post barrier if needed. The instructions above manage any post
// barriers they need directly.
if (NeedsPostBarrier(value))
@@ -13041,40 +12953,6 @@ IonBuilder::storeUnboxedValue(MDefinition* obj, MDefinition* elements, int32_t e
}
bool
-IonBuilder::setPropTryUnboxed(bool* emitted, MDefinition* obj,
- PropertyName* name, MDefinition* value,
- bool barrier, TemporaryTypeSet* objTypes)
-{
- MOZ_ASSERT(*emitted == false);
-
- if (barrier) {
- trackOptimizationOutcome(TrackedOutcome::NeedsTypeBarrier);
- return true;
- }
-
- JSValueType unboxedType;
- uint32_t offset = getUnboxedOffset(obj->resultTypeSet(), name, &unboxedType);
- if (offset == UINT32_MAX)
- return true;
-
- if (obj->type() != MIRType::Object) {
- MGuardObject* guard = MGuardObject::New(alloc(), obj);
- current->add(guard);
- obj = guard;
- }
-
- MInstruction* store = storeUnboxedProperty(obj, offset, unboxedType, value);
-
- current->push(value);
-
- if (!resumeAfter(store))
- return false;
-
- *emitted = true;
- return true;
-}
-
-bool
IonBuilder::setPropTryInlineAccess(bool* emitted, MDefinition* obj,
PropertyName* name, MDefinition* value,
bool barrier, TemporaryTypeSet* objTypes)
@@ -13112,46 +12990,6 @@ IonBuilder::setPropTryInlineAccess(bool* emitted, MDefinition* obj,
return true;
}
- if (receivers[0].shape) {
- // Monomorphic store to an unboxed object expando.
- spew("Inlining monomorphic unboxed expando SETPROP");
-
- obj = addGroupGuard(obj, receivers[0].group, Bailout_ShapeGuard);
- obj = addUnboxedExpandoGuard(obj, /* hasExpando = */ true, Bailout_ShapeGuard);
-
- MInstruction* expando = MLoadUnboxedExpando::New(alloc(), obj);
- current->add(expando);
-
- expando = addShapeGuard(expando, receivers[0].shape, Bailout_ShapeGuard);
-
- Shape* shape = receivers[0].shape->searchLinear(NameToId(name));
- MOZ_ASSERT(shape);
-
- bool needsBarrier = objTypes->propertyNeedsBarrier(constraints(), NameToId(name));
- if (!storeSlot(expando, shape, value, needsBarrier))
- return false;
-
- trackOptimizationOutcome(TrackedOutcome::Monomorphic);
- *emitted = true;
- return true;
- }
-
- // Monomorphic store to an unboxed object.
- spew("Inlining monomorphic unboxed SETPROP");
-
- ObjectGroup* group = receivers[0].group;
- if (!objTypes->hasType(TypeSet::ObjectType(group)))
- return true;
-
- obj = addGroupGuard(obj, group, Bailout_ShapeGuard);
-
- const UnboxedLayout::Property* property = group->unboxedLayout().lookup(name);
- storeUnboxedProperty(obj, property->offset, property->type, value);
-
- current->push(value);
-
- trackOptimizationOutcome(TrackedOutcome::Monomorphic);
- *emitted = true;
return true;
}
@@ -14179,19 +14017,6 @@ IonBuilder::addGroupGuard(MDefinition* obj, ObjectGroup* group, BailoutKind bail
}
MInstruction*
-IonBuilder::addUnboxedExpandoGuard(MDefinition* obj, bool hasExpando, BailoutKind bailoutKind)
-{
- MGuardUnboxedExpando* guard = MGuardUnboxedExpando::New(alloc(), obj, hasExpando, bailoutKind);
- current->add(guard);
-
- // If a shape guard failed in the past, don't optimize group guards.
- if (failedShapeGuard_)
- guard->setNotMovable();
-
- return guard;
-}
-
-MInstruction*
IonBuilder::addGuardReceiverPolymorphic(MDefinition* obj,
const BaselineInspector::ReceiverVector& receivers)
{
@@ -14200,15 +14025,6 @@ IonBuilder::addGuardReceiverPolymorphic(MDefinition* obj,
// Monomorphic guard on a native object.
return addShapeGuard(obj, receivers[0].shape, Bailout_ShapeGuard);
}
-
- if (!receivers[0].shape) {
- // Guard on an unboxed object that does not have an expando.
- obj = addGroupGuard(obj, receivers[0].group, Bailout_ShapeGuard);
- return addUnboxedExpandoGuard(obj, /* hasExpando = */ false, Bailout_ShapeGuard);
- }
-
- // Monomorphic receiver guards are not yet supported when the receiver
- // is an unboxed object with an expando.
}
MGuardReceiverPolymorphic* guard = MGuardReceiverPolymorphic::New(alloc(), obj);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 21:19:12 +0000