Commit 3a7a4a2f authored by Maya Lekova's avatar Maya Lekova Committed by Commit Bot

Revert "[CSA][cleanup] TNodify some methods related to prototype and property lookup"

This reverts commit 82111e22.

Reason for revert: Speculative revert, could be causing timeouts - https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm%20-%20sim%20-%20debug/17567

Original change's description:
> [CSA][cleanup] TNodify some methods related to prototype and property lookup
> 
> This is a CL in a string of CLs that aims to TNodify CSA. In particular,
> there were some loads that were done in AnyTagged instead of
> TaggedPointer. TNode-ifying them brings improvement in pointer
> compression since we are able to decompress using the Pointer
> decompression.
> 
> TNodified:
>  * LoadJSFunctionPrototype
>  * TryPrototypeChainLookup
>  * OrdinaryHasInstance
> 
> Also TNodified loads regarding:
>  * FeedbackCell::kValueOffset
>  * HeapObject::kMapOffset
>  * JSFunction::kSharedFunctionInfoOffset
>  * JSFunction::kFeedbackCellOffset
>  * Map::kInstanceTypeOffset
>  * Map::kInstanceDescriptorsOffset
>  * Map::kPrototypeOffset
> 
> Drive-by cleanup: StoreJSArrayLength and StoreElements were unused.
> 
> Bug: v8:6949, v8:9396
> Change-Id: I89697b5c02490906be1eee63cf3d9e60a1094d48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1755844
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63216}

TBR=rmcilroy@chromium.org,solanes@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:6949, v8:9396
Change-Id: Ib6ae8fe86a598ed1066894595565e1162cf7dd1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758310Reviewed-by: 's avatarMaya Lekova <mslekova@chromium.org>
Reviewed-by: 's avatarSantiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63233}
parent 29585a06
......@@ -403,7 +403,7 @@ TF_BUILTIN(LoadIC_FunctionPrototype, CodeStubAssembler) {
Node* context = Parameter(Descriptor::kContext);
Label miss(this, Label::kDeferred);
Return(LoadJSFunctionPrototype(CAST(receiver), &miss));
Return(LoadJSFunctionPrototype(receiver, &miss));
BIND(&miss);
TailCallRuntime(Runtime::kLoadIC_Miss, context, receiver, name, slot, vector);
......
This diff is collapsed.
......@@ -1289,7 +1289,7 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
void GotoIfPrototypeRequiresRuntimeLookup(TNode<JSFunction> function,
TNode<Map> map, Label* runtime);
// Load the "prototype" property of a JSFunction.
Node* LoadJSFunctionPrototype(TNode<JSFunction> function, Label* if_bailout);
Node* LoadJSFunctionPrototype(Node* function, Label* if_bailout);
TNode<BytecodeArray> LoadSharedFunctionInfoBytecodeArray(
SloppyTNode<SharedFunctionInfo> shared);
......@@ -1372,6 +1372,9 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
CheckBounds::kDebugOnly);
}
void StoreJSArrayLength(TNode<JSArray> array, TNode<Smi> length);
void StoreElements(TNode<Object> object, TNode<FixedArrayBase> elements);
void StoreFixedArrayOrPropertyArrayElement(
Node* array, Node* index, Node* value,
WriteBarrierMode barrier_mode = UPDATE_WRITE_BARRIER,
......
......@@ -2298,10 +2298,10 @@ void AccessorAssembler::GenericPropertyLoad(Node* receiver, Node* receiver_map,
GotoIf(InstanceTypeEqual(var_holder_instance_type.value(),
JS_TYPED_ARRAY_TYPE),
slow);
TNode<HeapObject> proto = LoadMapPrototype(var_holder_map.value());
Node* proto = LoadMapPrototype(var_holder_map.value());
GotoIf(WordEqual(proto, NullConstant()), &return_undefined);
TNode<Map> proto_map = LoadMap(proto);
TNode<Uint16T> proto_instance_type = LoadMapInstanceType(proto_map);
Node* proto_map = LoadMap(proto);
Node* proto_instance_type = LoadMapInstanceType(proto_map);
var_holder_map.Bind(proto_map);
var_holder_instance_type.Bind(proto_instance_type);
Label next_proto(this), return_value(this, &var_value), goto_slow(this);
......@@ -2623,7 +2623,7 @@ void AccessorAssembler::LoadIC_NoFeedback(const LoadICParameters* p) {
GotoIfPrototypeRequiresRuntimeLookup(CAST(receiver), CAST(receiver_map),
&not_function_prototype);
Return(LoadJSFunctionPrototype(CAST(receiver), &miss));
Return(LoadJSFunctionPrototype(receiver, &miss));
BIND(&not_function_prototype);
}
......
......@@ -1246,7 +1246,7 @@ void InterpreterAssembler::UpdateInterruptBudget(Node* weight, bool backward) {
Label load_budget_from_bytecode(this), load_budget_done(this);
TNode<JSFunction> function = CAST(LoadRegister(Register::function_closure()));
TNode<FeedbackCell> feedback_cell =
LoadObjectField<FeedbackCell>(function, JSFunction::kFeedbackCellOffset);
CAST(LoadObjectField(function, JSFunction::kFeedbackCellOffset));
TNode<Int32T> old_budget = LoadObjectField<Int32T>(
feedback_cell, FeedbackCell::kInterruptBudgetOffset);
......
......@@ -2204,7 +2204,6 @@ IS_UNOP_MATCHER(ChangeInt32ToInt64)
IS_UNOP_MATCHER(ChangeUint32ToFloat64)
IS_UNOP_MATCHER(ChangeUint32ToUint64)
IS_UNOP_MATCHER(ChangeCompressedToTagged)
IS_UNOP_MATCHER(ChangeCompressedPointerToTaggedPointer)
IS_UNOP_MATCHER(TruncateFloat64ToFloat32)
IS_UNOP_MATCHER(TruncateInt64ToInt32)
IS_UNOP_MATCHER(Float32Abs)
......
......@@ -427,8 +427,6 @@ Matcher<Node*> IsChangeInt32ToInt64(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsChangeUint32ToFloat64(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsChangeUint32ToUint64(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsChangeCompressedToTagged(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsChangeCompressedPointerToTaggedPointer(
const Matcher<Node*>& input_matcher);
Matcher<Node*> IsTruncateFloat64ToFloat32(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsTruncateInt64ToInt32(const Matcher<Node*>& input_matcher);
Matcher<Node*> IsFloat32Abs(const Matcher<Node*>& input_matcher);
......
......@@ -601,22 +601,21 @@ TARGET_TEST_F(InterpreterAssemblerTest, LoadFeedbackVector) {
c::IsIntPtrConstant(Register::function_closure().ToOperand() *
kSystemPointerSize)));
#ifdef V8_COMPRESS_POINTERS
Matcher<Node*> load_vector_cell_matcher =
IsChangeCompressedPointerToTaggedPointer(m.IsLoadFromObject(
MachineType::CompressedPointer(), load_function_matcher,
c::IsIntPtrConstant(JSFunction::kFeedbackCellOffset -
kHeapObjectTag)));
Matcher<Node*> load_vector_cell_matcher = IsChangeCompressedToTagged(
m.IsLoadFromObject(MachineType::AnyCompressed(), load_function_matcher,
c::IsIntPtrConstant(JSFunction::kFeedbackCellOffset -
kHeapObjectTag)));
EXPECT_THAT(load_feedback_vector,
IsChangeCompressedPointerToTaggedPointer(m.IsLoadFromObject(
MachineType::CompressedPointer(), load_vector_cell_matcher,
IsChangeCompressedToTagged(m.IsLoadFromObject(
MachineType::AnyCompressed(), load_vector_cell_matcher,
c::IsIntPtrConstant(Cell::kValueOffset - kHeapObjectTag))));
#else
Matcher<Node*> load_vector_cell_matcher = m.IsLoadFromObject(
MachineType::TaggedPointer(), load_function_matcher,
MachineType::AnyTagged(), load_function_matcher,
c::IsIntPtrConstant(JSFunction::kFeedbackCellOffset - kHeapObjectTag));
EXPECT_THAT(load_feedback_vector,
m.IsLoadFromObject(
MachineType::TaggedPointer(), load_vector_cell_matcher,
MachineType::AnyTagged(), load_vector_cell_matcher,
c::IsIntPtrConstant(Cell::kValueOffset - kHeapObjectTag)));
#endif
}
......
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