diff options
Diffstat (limited to 'js/src/jit/BaselineInspector.cpp')
-rw-r--r-- | js/src/jit/BaselineInspector.cpp | 79 |
1 files changed, 12 insertions, 67 deletions
diff --git a/js/src/jit/BaselineInspector.cpp b/js/src/jit/BaselineInspector.cpp index c9e09bed7..3b852debf 100644 --- a/js/src/jit/BaselineInspector.cpp +++ b/js/src/jit/BaselineInspector.cpp @@ -96,32 +96,19 @@ VectorAppendNoDuplicate(S& list, T value) static bool AddReceiver(const ReceiverGuard& receiver, - BaselineInspector::ReceiverVector& receivers, - BaselineInspector::ObjectGroupVector& convertUnboxedGroups) + BaselineInspector::ReceiverVector& receivers) { - if (receiver.group && receiver.group->maybeUnboxedLayout()) { - if (receiver.group->unboxedLayout().nativeGroup()) - return VectorAppendNoDuplicate(convertUnboxedGroups, receiver.group); - } return VectorAppendNoDuplicate(receivers, receiver); } static bool GetCacheIRReceiverForNativeReadSlot(ICCacheIR_Monitored* stub, ReceiverGuard* receiver) { - // We match either: + // We match: // // GuardIsObject 0 // GuardShape 0 // LoadFixedSlotResult 0 or LoadDynamicSlotResult 0 - // - // or - // - // GuardIsObject 0 - // GuardGroup 0 - // 1: GuardAndLoadUnboxedExpando 0 - // GuardShape 1 - // LoadFixedSlotResult 1 or LoadDynamicSlotResult 1 *receiver = ReceiverGuard(); CacheIRReader reader(stub->stubInfo()); @@ -130,14 +117,6 @@ GetCacheIRReceiverForNativeReadSlot(ICCacheIR_Monitored* stub, ReceiverGuard* re if (!reader.matchOp(CacheOp::GuardIsObject, objId)) return false; - if (reader.matchOp(CacheOp::GuardGroup, objId)) { - receiver->group = stub->stubInfo()->getStubField<ObjectGroup*>(stub, reader.stubOffset()); - - if (!reader.matchOp(CacheOp::GuardAndLoadUnboxedExpando, objId)) - return false; - objId = reader.objOperandId(); - } - if (reader.matchOp(CacheOp::GuardShape, objId)) { receiver->shape = stub->stubInfo()->getStubField<Shape*>(stub, reader.stubOffset()); return reader.matchOpEither(CacheOp::LoadFixedSlotResult, CacheOp::LoadDynamicSlotResult); @@ -146,40 +125,13 @@ GetCacheIRReceiverForNativeReadSlot(ICCacheIR_Monitored* stub, ReceiverGuard* re return false; } -static bool -GetCacheIRReceiverForUnboxedProperty(ICCacheIR_Monitored* stub, ReceiverGuard* receiver) -{ - // We match: - // - // GuardIsObject 0 - // GuardGroup 0 - // LoadUnboxedPropertyResult 0 .. - - *receiver = ReceiverGuard(); - CacheIRReader reader(stub->stubInfo()); - - ObjOperandId objId = ObjOperandId(0); - if (!reader.matchOp(CacheOp::GuardIsObject, objId)) - return false; - - if (!reader.matchOp(CacheOp::GuardGroup, objId)) - return false; - receiver->group = stub->stubInfo()->getStubField<ObjectGroup*>(stub, reader.stubOffset()); - - return reader.matchOp(CacheOp::LoadUnboxedPropertyResult, objId); -} - bool -BaselineInspector::maybeInfoForPropertyOp(jsbytecode* pc, ReceiverVector& receivers, - ObjectGroupVector& convertUnboxedGroups) +BaselineInspector::maybeInfoForPropertyOp(jsbytecode* pc, ReceiverVector& receivers) { // Return a list of the receivers seen by the baseline IC for the current // op. Empty lists indicate no receivers are known, or there was an - // uncacheable access. convertUnboxedGroups is used for unboxed object - // groups which have been seen, but have had instances converted to native - // objects and should be eagerly converted by Ion. + // uncacheable access. MOZ_ASSERT(receivers.empty()); - MOZ_ASSERT(convertUnboxedGroups.empty()); if (!hasBaselineScript()) return true; @@ -191,8 +143,7 @@ BaselineInspector::maybeInfoForPropertyOp(jsbytecode* pc, ReceiverVector& receiv while (stub->next()) { ReceiverGuard receiver; if (stub->isCacheIR_Monitored()) { - if (!GetCacheIRReceiverForNativeReadSlot(stub->toCacheIR_Monitored(), &receiver) && - !GetCacheIRReceiverForUnboxedProperty(stub->toCacheIR_Monitored(), &receiver)) + if (!GetCacheIRReceiverForNativeReadSlot(stub->toCacheIR_Monitored(), &receiver)) { receivers.clear(); return true; @@ -200,14 +151,12 @@ BaselineInspector::maybeInfoForPropertyOp(jsbytecode* pc, ReceiverVector& receiv } else if (stub->isSetProp_Native()) { receiver = ReceiverGuard(stub->toSetProp_Native()->group(), stub->toSetProp_Native()->shape()); - } else if (stub->isSetProp_Unboxed()) { - receiver = ReceiverGuard(stub->toSetProp_Unboxed()->group(), nullptr); } else { receivers.clear(); return true; } - if (!AddReceiver(receiver, receivers, convertUnboxedGroups)) + if (!AddReceiver(receiver, receivers)) return false; stub = stub->next(); @@ -589,7 +538,7 @@ BaselineInspector::getTemplateObjectForNative(jsbytecode* pc, Native native) bool BaselineInspector::isOptimizableCallStringSplit(jsbytecode* pc, JSString** strOut, JSString** sepOut, - JSObject** objOut) + ArrayObject** objOut) { if (!hasBaselineScript()) return false; @@ -700,14 +649,12 @@ bool BaselineInspector::commonGetPropFunction(jsbytecode* pc, JSObject** holder, Shape** holderShape, JSFunction** commonGetter, Shape** globalShape, bool* isOwnProperty, - ReceiverVector& receivers, - ObjectGroupVector& convertUnboxedGroups) + ReceiverVector& receivers) { if (!hasBaselineScript()) return false; MOZ_ASSERT(receivers.empty()); - MOZ_ASSERT(convertUnboxedGroups.empty()); *holder = nullptr; const ICEntry& entry = icEntryFromPC(pc); @@ -719,7 +666,7 @@ BaselineInspector::commonGetPropFunction(jsbytecode* pc, JSObject** holder, Shap { ICGetPropCallGetter* nstub = static_cast<ICGetPropCallGetter*>(stub); bool isOwn = nstub->isOwnGetter(); - if (!isOwn && !AddReceiver(nstub->receiverGuard(), receivers, convertUnboxedGroups)) + if (!isOwn && !AddReceiver(nstub->receiverGuard(), receivers)) return false; if (!*holder) { @@ -751,21 +698,19 @@ BaselineInspector::commonGetPropFunction(jsbytecode* pc, JSObject** holder, Shap if (!*holder) return false; - MOZ_ASSERT(*isOwnProperty == (receivers.empty() && convertUnboxedGroups.empty())); + MOZ_ASSERT(*isOwnProperty == (receivers.empty())); return true; } bool BaselineInspector::commonSetPropFunction(jsbytecode* pc, JSObject** holder, Shape** holderShape, JSFunction** commonSetter, bool* isOwnProperty, - ReceiverVector& receivers, - ObjectGroupVector& convertUnboxedGroups) + ReceiverVector& receivers) { if (!hasBaselineScript()) return false; MOZ_ASSERT(receivers.empty()); - MOZ_ASSERT(convertUnboxedGroups.empty()); *holder = nullptr; const ICEntry& entry = icEntryFromPC(pc); @@ -774,7 +719,7 @@ BaselineInspector::commonSetPropFunction(jsbytecode* pc, JSObject** holder, Shap if (stub->isSetProp_CallScripted() || stub->isSetProp_CallNative()) { ICSetPropCallSetter* nstub = static_cast<ICSetPropCallSetter*>(stub); bool isOwn = nstub->isOwnSetter(); - if (!isOwn && !AddReceiver(nstub->receiverGuard(), receivers, convertUnboxedGroups)) + if (!isOwn && !AddReceiver(nstub->receiverGuard(), receivers)) return false; if (!*holder) { |