[Turbofan] Make JSCallReducer::ReducePromise* concurrent

This CL is an improvement on
https://chromium-review.googlesource.com/c/v8/v8/+/1664052
which introduced unnecessary boilerplate (now reverted).

The code objects for resolve/reject handlers are builtins, and
therefore already serialized.

R=jarin@chromium.org

Bug: v8:7790
Change-Id: I6a49110aa794d4bd380cabd40e67fba7783e642a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1664055
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62236}
This commit is contained in:
Mike Stanton 2019-06-18 12:43:22 +02:00 committed by Commit Bot
parent 523be745d2
commit c03ca58fed
2 changed files with 26 additions and 26 deletions

View File

@ -5580,6 +5580,7 @@ Node* JSCallReducer::CreateArtificialFrameState(
Reduction JSCallReducer::ReducePromiseConstructor(Node* node) {
DCHECK_EQ(IrOpcode::kJSConstruct, node->opcode());
ConstructParameters const& p = ConstructParametersOf(node->op());
DisallowHeapAccessIf no_heap_access(FLAG_concurrent_inlining);
int arity = static_cast<int>(p.arity() - 2);
// We only inline when we have the executor.
if (arity < 1) return NoChange();
@ -5665,21 +5666,13 @@ Reduction JSCallReducer::ReducePromiseConstructor(Node* node) {
promise_context, jsgraph()->TrueConstant(), effect, control);
// Allocate the closure for the resolve case.
SharedFunctionInfoRef resolve_shared =
native_context().promise_capability_default_resolve_shared_fun();
Node* resolve = effect = graph()->NewNode(
javascript()->CreateClosure(
resolve_shared.object(), factory()->many_closures_cell(),
handle(resolve_shared.object()->GetCode(), isolate())),
Node* resolve = effect = CreateClosureFromBuiltinSharedFunctionInfo(
native_context().promise_capability_default_resolve_shared_fun(),
promise_context, effect, control);
// Allocate the closure for the reject case.
SharedFunctionInfoRef reject_shared =
native_context().promise_capability_default_reject_shared_fun();
Node* reject = effect = graph()->NewNode(
javascript()->CreateClosure(
reject_shared.object(), factory()->many_closures_cell(),
handle(reject_shared.object()->GetCode(), isolate())),
Node* reject = effect = CreateClosureFromBuiltinSharedFunctionInfo(
native_context().promise_capability_default_reject_shared_fun(),
promise_context, effect, control);
const std::vector<Node*> checkpoint_parameters_continuation(
@ -5875,10 +5868,22 @@ Reduction JSCallReducer::ReducePromisePrototypeCatch(Node* node) {
return reduction.Changed() ? reduction : Changed(node);
}
Node* JSCallReducer::CreateClosureFromBuiltinSharedFunctionInfo(
SharedFunctionInfoRef shared, Node* context, Node* effect, Node* control) {
DCHECK(shared.HasBuiltinId());
Callable const callable = Builtins::CallableFor(
isolate(), static_cast<Builtins::Name>(shared.builtin_id()));
return graph()->NewNode(
javascript()->CreateClosure(
shared.object(), factory()->many_closures_cell(), callable.code()),
context, effect, control);
}
// ES section #sec-promise.prototype.finally
Reduction JSCallReducer::ReducePromisePrototypeFinally(Node* node) {
DCHECK_EQ(IrOpcode::kJSCall, node->opcode());
CallParameters const& p = CallParametersOf(node->op());
DisallowHeapAccessIf no_heap_access(FLAG_concurrent_inlining);
int arity = static_cast<int>(p.arity() - 2);
Node* receiver = NodeProperties::GetValueInput(node, 1);
Node* on_finally = arity >= 1 ? NodeProperties::GetValueInput(node, 2)
@ -5941,22 +5946,14 @@ Reduction JSCallReducer::ReducePromisePrototypeFinally(Node* node) {
context, constructor, etrue, if_true);
// Allocate the closure for the reject case.
SharedFunctionInfoRef catch_finally =
native_context().promise_catch_finally_shared_fun();
catch_true = etrue = graph()->NewNode(
javascript()->CreateClosure(
catch_finally.object(), factory()->many_closures_cell(),
handle(catch_finally.object()->GetCode(), isolate())),
context, etrue, if_true);
catch_true = etrue = CreateClosureFromBuiltinSharedFunctionInfo(
native_context().promise_catch_finally_shared_fun(), context, etrue,
if_true);
// Allocate the closure for the fulfill case.
SharedFunctionInfoRef then_finally =
native_context().promise_then_finally_shared_fun();
then_true = etrue = graph()->NewNode(
javascript()->CreateClosure(
then_finally.object(), factory()->many_closures_cell(),
handle(then_finally.object()->GetCode(), isolate())),
context, etrue, if_true);
then_true = etrue = CreateClosureFromBuiltinSharedFunctionInfo(
native_context().promise_then_finally_shared_fun(), context, etrue,
if_true);
}
Node* if_false = graph()->NewNode(common()->IfFalse(), branch);

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@ -194,6 +194,9 @@ class V8_EXPORT_PRIVATE JSCallReducer final : public AdvancedReducer {
// Helper to verify promise receiver maps are as expected.
bool DoPromiseChecks(MapInference* inference);
Node* CreateClosureFromBuiltinSharedFunctionInfo(SharedFunctionInfoRef shared,
Node* context, Node* effect,
Node* control);
// Returns the updated {to} node, and updates control and effect along the
// way.