Commit 9284ad57 authored by Georg Neis's avatar Georg Neis Committed by Commit Bot

[turbofan] Avoid raw InferReceiverMaps in JSCallReducer

Instead provide an abstraction that makes it hard to forget
dealing with unreliable maps.

This also fixes a deopt loop in Function.prototype.bind and
one in Array.prototype.reduce.

Bug: v8:9137
Change-Id: If6a51182c8693a62e9fb6d302cec19b4d48e25cb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1578501
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: 's avatarJaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61106}
parent 150a8aba
This diff is collapsed.
......@@ -190,11 +190,6 @@ class V8_EXPORT_PRIVATE JSCallReducer final : public AdvancedReducer {
Reduction ReduceNumberConstructor(Node* node);
Node* InsertMapChecksIfUnreliableReceiverMaps(
NodeProperties::InferReceiverMapsResult result,
ZoneHandleSet<Map> const& receiver_maps, VectorSlotPair const& feedback,
Node* receiver, Node* effect, Node* control);
// Returns the updated {to} node, and updates control and effect along the
// way.
Node* DoFilterPostCallbackWork(ElementsKind kind, Node** control,
......
......@@ -1168,7 +1168,13 @@ class Isolate final : private HiddenFactory {
inline bool IsArraySpeciesLookupChainIntact();
inline bool IsTypedArraySpeciesLookupChainIntact();
inline bool IsRegExpSpeciesLookupChainIntact();
// Check that the @@species protector is intact, which guards the lookup of
// "constructor" on JSPromise instances, whose [[Prototype]] is the initial
// %PromisePrototype%, and the Symbol.species lookup on the
// %PromisePrototype%.
inline bool IsPromiseSpeciesLookupChainIntact();
bool IsIsConcatSpreadableLookupChainIntact();
bool IsIsConcatSpreadableLookupChainIntact(JSReceiver receiver);
inline bool IsStringLengthOverflowIntact();
......@@ -1214,7 +1220,7 @@ class Isolate final : private HiddenFactory {
inline bool IsArrayBufferDetachingIntact();
// Disable promise optimizations if promise (debug) hooks have ever been
// active.
// active, because those can observe promises.
bool IsPromiseHookProtectorIntact();
// Make sure a lookup of "resolve" on the %Promise% intrinsic object
......
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt
// Flags: --no-flush-bytecode --no-stress-flush-bytecode
function changeMap(obj) {
obj.blub = 42;
}
function foo(obj) {
return obj.bind(changeMap(obj));
}
%NeverOptimizeFunction(changeMap);
%PrepareFunctionForOptimization(foo);
foo(function(){});
foo(function(){});
%OptimizeFunctionOnNextCall(foo);
foo(function(){});
%OptimizeFunctionOnNextCall(foo);
foo(function(){});
assertOptimized(foo);
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt
// Flags: --no-flush-bytecode --no-stress-flush-bytecode
function changeMap(obj) {
obj.blub = 42;
}
function reducer(acc, val, i, obj) {
return changeMap(obj);
}
function foo(obj) {
return obj.reduce(reducer);
}
%NeverOptimizeFunction(reducer);
%PrepareFunctionForOptimization(foo);
foo([0, 1, 2]);
foo([0, 1, 2]);
%OptimizeFunctionOnNextCall(foo);
foo([0, 1, 2]);
%OptimizeFunctionOnNextCall(foo);
foo([0, 1, 2]);
assertOptimized(foo);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment