64290afcd0
The test uses an incomplete native context, so the broker fails during serialization. Bug: v8:7790 Change-Id: I33e9e37df4e4acce62829123a8d16087d4fdc76d Reviewed-on: https://chromium-review.googlesource.com/1156693 Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#54825}
728 lines
26 KiB
C++
728 lines
26 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/compiler/compiler-source-position-table.h"
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#include "src/compiler/js-context-specialization.h"
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#include "src/compiler/js-graph.h"
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#include "src/compiler/js-operator.h"
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#include "src/compiler/node-matchers.h"
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#include "src/compiler/node-properties.h"
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#include "src/heap/factory.h"
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#include "src/objects-inl.h"
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#include "src/property.h"
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#include "test/cctest/cctest.h"
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#include "test/cctest/compiler/function-tester.h"
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#include "test/cctest/compiler/graph-builder-tester.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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class ContextSpecializationTester : public HandleAndZoneScope {
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public:
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explicit ContextSpecializationTester(Maybe<OuterContext> context)
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: canonical_(main_isolate()),
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graph_(new (main_zone()) Graph(main_zone())),
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common_(main_zone()),
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javascript_(main_zone()),
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machine_(main_zone()),
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simplified_(main_zone()),
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jsgraph_(main_isolate(), graph(), common(), &javascript_, &simplified_,
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&machine_),
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reducer_(main_zone(), graph()),
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js_heap_broker_(main_isolate(), main_zone()),
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spec_(&reducer_, jsgraph(), &js_heap_broker_, context,
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MaybeHandle<JSFunction>()) {}
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JSContextSpecialization* spec() { return &spec_; }
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Factory* factory() { return main_isolate()->factory(); }
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CommonOperatorBuilder* common() { return &common_; }
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JSOperatorBuilder* javascript() { return &javascript_; }
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SimplifiedOperatorBuilder* simplified() { return &simplified_; }
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JSGraph* jsgraph() { return &jsgraph_; }
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Graph* graph() { return graph_; }
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void CheckChangesToValue(Node* node, Handle<HeapObject> expected_value);
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void CheckContextInputAndDepthChanges(
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Node* node, Handle<Context> expected_new_context_object,
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size_t expected_new_depth);
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void CheckContextInputAndDepthChanges(Node* node, Node* expected_new_context,
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size_t expected_new_depth);
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private:
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CanonicalHandleScope canonical_;
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Graph* graph_;
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CommonOperatorBuilder common_;
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JSOperatorBuilder javascript_;
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MachineOperatorBuilder machine_;
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SimplifiedOperatorBuilder simplified_;
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JSGraph jsgraph_;
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GraphReducer reducer_;
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JSHeapBroker js_heap_broker_;
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JSContextSpecialization spec_;
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};
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void ContextSpecializationTester::CheckChangesToValue(
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Node* node, Handle<HeapObject> expected_value) {
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Reduction r = spec()->Reduce(node);
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CHECK(r.Changed());
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HeapObjectMatcher match(r.replacement());
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CHECK(match.HasValue());
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CHECK_EQ(*match.Value(), *expected_value);
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}
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void ContextSpecializationTester::CheckContextInputAndDepthChanges(
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Node* node, Handle<Context> expected_new_context_object,
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size_t expected_new_depth) {
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ContextAccess access = ContextAccessOf(node->op());
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Reduction r = spec()->Reduce(node);
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CHECK(r.Changed());
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Node* new_context = NodeProperties::GetContextInput(r.replacement());
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CHECK_EQ(IrOpcode::kHeapConstant, new_context->opcode());
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HeapObjectMatcher match(new_context);
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CHECK_EQ(*match.Value(), *expected_new_context_object);
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ContextAccess new_access = ContextAccessOf(r.replacement()->op());
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CHECK_EQ(new_access.depth(), expected_new_depth);
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CHECK_EQ(new_access.index(), access.index());
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CHECK_EQ(new_access.immutable(), access.immutable());
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}
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void ContextSpecializationTester::CheckContextInputAndDepthChanges(
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Node* node, Node* expected_new_context, size_t expected_new_depth) {
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ContextAccess access = ContextAccessOf(node->op());
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Reduction r = spec()->Reduce(node);
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CHECK(r.Changed());
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Node* new_context = NodeProperties::GetContextInput(r.replacement());
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CHECK_EQ(new_context, expected_new_context);
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ContextAccess new_access = ContextAccessOf(r.replacement()->op());
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CHECK_EQ(new_access.depth(), expected_new_depth);
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CHECK_EQ(new_access.index(), access.index());
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CHECK_EQ(new_access.immutable(), access.immutable());
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}
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static const int slot_index = Context::NATIVE_CONTEXT_INDEX;
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TEST(ReduceJSLoadContext0) {
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// TODO(neis): The native context below does not have all the fields
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// initialized that the heap broker wants to serialize.
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bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
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FLAG_concurrent_compiler_frontend = false;
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ContextSpecializationTester t(Nothing<OuterContext>());
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Node* start = t.graph()->NewNode(t.common()->Start(0));
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t.graph()->SetStart(start);
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// Make a context and initialize it a bit for this test.
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Handle<Context> native = t.factory()->NewNativeContext();
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Handle<Context> subcontext1 = t.factory()->NewNativeContext();
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Handle<Context> subcontext2 = t.factory()->NewNativeContext();
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subcontext2->set_previous(*subcontext1);
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subcontext1->set_previous(*native);
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Handle<Object> expected = t.factory()->InternalizeUtf8String("gboy!");
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const int slot = Context::NATIVE_CONTEXT_INDEX;
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native->set(slot, *expected);
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Node* const_context = t.jsgraph()->Constant(native);
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Node* deep_const_context = t.jsgraph()->Constant(subcontext2);
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Node* param_context = t.graph()->NewNode(t.common()->Parameter(0), start);
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{
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// Mutable slot, constant context, depth = 0 => do nothing.
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Node* load = t.graph()->NewNode(t.javascript()->LoadContext(0, 0, false),
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const_context, start);
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Reduction r = t.spec()->Reduce(load);
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CHECK(!r.Changed());
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}
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{
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// Mutable slot, non-constant context, depth = 0 => do nothing.
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Node* load = t.graph()->NewNode(t.javascript()->LoadContext(0, 0, false),
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param_context, start);
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Reduction r = t.spec()->Reduce(load);
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CHECK(!r.Changed());
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}
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{
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// Mutable slot, constant context, depth > 0 => fold-in parent context.
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, Context::GLOBAL_EVAL_FUN_INDEX, false),
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deep_const_context, start);
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Reduction r = t.spec()->Reduce(load);
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CHECK(r.Changed());
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Node* new_context_input = NodeProperties::GetContextInput(r.replacement());
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CHECK_EQ(IrOpcode::kHeapConstant, new_context_input->opcode());
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HeapObjectMatcher match(new_context_input);
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CHECK_EQ(*native, *match.Value());
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ContextAccess access = ContextAccessOf(r.replacement()->op());
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CHECK_EQ(Context::GLOBAL_EVAL_FUN_INDEX, static_cast<int>(access.index()));
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CHECK_EQ(0, static_cast<int>(access.depth()));
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CHECK_EQ(false, access.immutable());
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}
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{
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// Immutable slot, constant context, depth = 0 => specialize.
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Node* load = t.graph()->NewNode(t.javascript()->LoadContext(0, slot, true),
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const_context, start);
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Reduction r = t.spec()->Reduce(load);
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CHECK(r.Changed());
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CHECK(r.replacement() != load);
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HeapObjectMatcher match(r.replacement());
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CHECK(match.HasValue());
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CHECK_EQ(*expected, *match.Value());
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}
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FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
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}
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TEST(ReduceJSLoadContext1) {
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// The graph's context chain ends in the incoming context parameter:
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//
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// context2 <-- context1 <-- context0 (= Parameter(0))
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ContextSpecializationTester t(Nothing<OuterContext>());
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Node* start = t.graph()->NewNode(t.common()->Start(0));
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t.graph()->SetStart(start);
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Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()), t.main_isolate());
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const i::compiler::Operator* create_function_context =
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t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
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Node* context0 = t.graph()->NewNode(t.common()->Parameter(0), start);
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Node* context1 =
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t.graph()->NewNode(create_function_context, context0, start, start);
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Node* context2 =
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t.graph()->NewNode(create_function_context, context1, start, start);
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, false), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, true), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, true), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context0, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, true), context2, start);
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t.CheckContextInputAndDepthChanges(load, context0, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context0, 1);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, true), context2, start);
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t.CheckContextInputAndDepthChanges(load, context0, 1);
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}
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}
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TEST(ReduceJSLoadContext2) {
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// The graph's context chain ends in a constant context (context_object1),
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// which has another outer context (context_object0).
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//
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// context2 <-- context1 <-- context0 (= HeapConstant(context_object1))
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// context_object1 <~~ context_object0
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// TODO(neis): The native context below does not have all the fields
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// initialized that the heap broker wants to serialize.
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bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
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FLAG_concurrent_compiler_frontend = false;
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ContextSpecializationTester t(Nothing<OuterContext>());
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Node* start = t.graph()->NewNode(t.common()->Start(0));
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t.graph()->SetStart(start);
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Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()), t.main_isolate());
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const i::compiler::Operator* create_function_context =
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t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
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Handle<HeapObject> slot_value0 = t.factory()->InternalizeUtf8String("0");
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Handle<HeapObject> slot_value1 = t.factory()->InternalizeUtf8String("1");
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Handle<Context> context_object0 = t.factory()->NewNativeContext();
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Handle<Context> context_object1 = t.factory()->NewNativeContext();
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context_object1->set_previous(*context_object0);
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context_object0->set(slot_index, *slot_value0);
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context_object1->set(slot_index, *slot_value1);
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Node* context0 = t.jsgraph()->Constant(context_object1);
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Node* context1 =
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t.graph()->NewNode(create_function_context, context0, start, start);
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Node* context2 =
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t.graph()->NewNode(create_function_context, context1, start, start);
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, false), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, true), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, true), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context0, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, true), context2, start);
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t.CheckChangesToValue(load, slot_value1);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context_object0, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, true), context2, start);
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t.CheckChangesToValue(load, slot_value0);
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}
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FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
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}
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TEST(ReduceJSLoadContext3) {
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// Like in ReduceJSLoadContext1, the graph's context chain ends in the
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// incoming context parameter. However, this time we provide a concrete
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// context for this parameter as the "specialization context". We choose
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// context_object2 from ReduceJSLoadContext2 for this, so almost all test
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// expectations are the same as in ReduceJSLoadContext2.
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// TODO(neis): The native context below does not have all the fields
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// initialized that the heap broker wants to serialize.
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bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
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FLAG_concurrent_compiler_frontend = false;
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HandleAndZoneScope handle_zone_scope;
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auto factory = handle_zone_scope.main_isolate()->factory();
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Handle<HeapObject> slot_value0 = factory->InternalizeUtf8String("0");
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Handle<HeapObject> slot_value1 = factory->InternalizeUtf8String("1");
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Handle<Context> context_object0 = factory->NewNativeContext();
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Handle<Context> context_object1 = factory->NewNativeContext();
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context_object1->set_previous(*context_object0);
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context_object0->set(slot_index, *slot_value0);
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context_object1->set(slot_index, *slot_value1);
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ContextSpecializationTester t(Just(OuterContext(context_object1, 0)));
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Node* start = t.graph()->NewNode(t.common()->Start(2));
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t.graph()->SetStart(start);
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Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()),
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handle_zone_scope.main_isolate());
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const i::compiler::Operator* create_function_context =
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t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
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Node* context0 = t.graph()->NewNode(t.common()->Parameter(0), start);
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Node* context1 =
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t.graph()->NewNode(create_function_context, context0, start, start);
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Node* context2 =
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t.graph()->NewNode(create_function_context, context1, start, start);
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, false), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(0, slot_index, true), context2, start);
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CHECK(!t.spec()->Reduce(load).Changed());
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(1, slot_index, true), context2, start);
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t.CheckContextInputAndDepthChanges(load, context1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context_object1, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(2, slot_index, true), context2, start);
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t.CheckChangesToValue(load, slot_value1);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, false), context2, start);
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t.CheckContextInputAndDepthChanges(load, context_object0, 0);
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}
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{
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Node* load = t.graph()->NewNode(
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t.javascript()->LoadContext(3, slot_index, true), context2, start);
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t.CheckChangesToValue(load, slot_value0);
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}
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FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
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}
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TEST(ReduceJSStoreContext0) {
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// TODO(neis): The native context below does not have all the fields
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// initialized that the heap broker wants to serialize.
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bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
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FLAG_concurrent_compiler_frontend = false;
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ContextSpecializationTester t(Nothing<OuterContext>());
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Node* start = t.graph()->NewNode(t.common()->Start(0));
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t.graph()->SetStart(start);
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// Make a context and initialize it a bit for this test.
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Handle<Context> native = t.factory()->NewNativeContext();
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Handle<Context> subcontext1 = t.factory()->NewNativeContext();
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Handle<Context> subcontext2 = t.factory()->NewNativeContext();
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subcontext2->set_previous(*subcontext1);
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subcontext1->set_previous(*native);
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Handle<Object> expected = t.factory()->InternalizeUtf8String("gboy!");
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const int slot = Context::NATIVE_CONTEXT_INDEX;
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native->set(slot, *expected);
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Node* const_context = t.jsgraph()->Constant(native);
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Node* deep_const_context = t.jsgraph()->Constant(subcontext2);
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Node* param_context = t.graph()->NewNode(t.common()->Parameter(0), start);
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{
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// Mutable slot, constant context, depth = 0 => do nothing.
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Node* load = t.graph()->NewNode(t.javascript()->StoreContext(0, 0),
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const_context, const_context, start, start);
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Reduction r = t.spec()->Reduce(load);
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CHECK(!r.Changed());
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}
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{
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// Mutable slot, non-constant context, depth = 0 => do nothing.
|
|
Node* load = t.graph()->NewNode(t.javascript()->StoreContext(0, 0),
|
|
param_context, param_context, start, start);
|
|
Reduction r = t.spec()->Reduce(load);
|
|
CHECK(!r.Changed());
|
|
}
|
|
|
|
{
|
|
// Immutable slot, constant context, depth = 0 => do nothing.
|
|
Node* load = t.graph()->NewNode(t.javascript()->StoreContext(0, slot),
|
|
const_context, const_context, start, start);
|
|
Reduction r = t.spec()->Reduce(load);
|
|
CHECK(!r.Changed());
|
|
}
|
|
|
|
{
|
|
// Mutable slot, constant context, depth > 0 => fold-in parent context.
|
|
Node* load = t.graph()->NewNode(
|
|
t.javascript()->StoreContext(2, Context::GLOBAL_EVAL_FUN_INDEX),
|
|
deep_const_context, deep_const_context, start, start);
|
|
Reduction r = t.spec()->Reduce(load);
|
|
CHECK(r.Changed());
|
|
Node* new_context_input = NodeProperties::GetContextInput(r.replacement());
|
|
CHECK_EQ(IrOpcode::kHeapConstant, new_context_input->opcode());
|
|
HeapObjectMatcher match(new_context_input);
|
|
CHECK_EQ(*native, *match.Value());
|
|
ContextAccess access = ContextAccessOf(r.replacement()->op());
|
|
CHECK_EQ(Context::GLOBAL_EVAL_FUN_INDEX, static_cast<int>(access.index()));
|
|
CHECK_EQ(0, static_cast<int>(access.depth()));
|
|
CHECK_EQ(false, access.immutable());
|
|
}
|
|
|
|
FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
|
|
}
|
|
|
|
TEST(ReduceJSStoreContext1) {
|
|
ContextSpecializationTester t(Nothing<OuterContext>());
|
|
|
|
Node* start = t.graph()->NewNode(t.common()->Start(0));
|
|
t.graph()->SetStart(start);
|
|
Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()), t.main_isolate());
|
|
const i::compiler::Operator* create_function_context =
|
|
t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
|
|
|
|
Node* context0 = t.graph()->NewNode(t.common()->Parameter(0), start);
|
|
Node* context1 =
|
|
t.graph()->NewNode(create_function_context, context0, start, start);
|
|
Node* context2 =
|
|
t.graph()->NewNode(create_function_context, context1, start, start);
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(0, slot_index),
|
|
context2, context2, start, start);
|
|
CHECK(!t.spec()->Reduce(store).Changed());
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(1, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context1, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(2, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context0, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(3, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context0, 1);
|
|
}
|
|
}
|
|
|
|
TEST(ReduceJSStoreContext2) {
|
|
// TODO(neis): The native context below does not have all the fields
|
|
// initialized that the heap broker wants to serialize.
|
|
bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
|
|
FLAG_concurrent_compiler_frontend = false;
|
|
|
|
ContextSpecializationTester t(Nothing<OuterContext>());
|
|
|
|
Node* start = t.graph()->NewNode(t.common()->Start(0));
|
|
t.graph()->SetStart(start);
|
|
Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()), t.main_isolate());
|
|
const i::compiler::Operator* create_function_context =
|
|
t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
|
|
|
|
Handle<HeapObject> slot_value0 = t.factory()->InternalizeUtf8String("0");
|
|
Handle<HeapObject> slot_value1 = t.factory()->InternalizeUtf8String("1");
|
|
|
|
Handle<Context> context_object0 = t.factory()->NewNativeContext();
|
|
Handle<Context> context_object1 = t.factory()->NewNativeContext();
|
|
context_object1->set_previous(*context_object0);
|
|
context_object0->set(slot_index, *slot_value0);
|
|
context_object1->set(slot_index, *slot_value1);
|
|
|
|
Node* context0 = t.jsgraph()->Constant(context_object1);
|
|
Node* context1 =
|
|
t.graph()->NewNode(create_function_context, context0, start, start);
|
|
Node* context2 =
|
|
t.graph()->NewNode(create_function_context, context1, start, start);
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(0, slot_index),
|
|
context2, context2, start, start);
|
|
CHECK(!t.spec()->Reduce(store).Changed());
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(1, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context1, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(2, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context0, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(3, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context_object0, 0);
|
|
}
|
|
|
|
FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
|
|
}
|
|
|
|
TEST(ReduceJSStoreContext3) {
|
|
// TODO(neis): The native context below does not have all the fields
|
|
// initialized that the heap broker wants to serialize.
|
|
bool concurrent_compiler_frontend = FLAG_concurrent_compiler_frontend;
|
|
FLAG_concurrent_compiler_frontend = false;
|
|
|
|
HandleAndZoneScope handle_zone_scope;
|
|
auto factory = handle_zone_scope.main_isolate()->factory();
|
|
|
|
Handle<HeapObject> slot_value0 = factory->InternalizeUtf8String("0");
|
|
Handle<HeapObject> slot_value1 = factory->InternalizeUtf8String("1");
|
|
|
|
Handle<Context> context_object0 = factory->NewNativeContext();
|
|
Handle<Context> context_object1 = factory->NewNativeContext();
|
|
context_object1->set_previous(*context_object0);
|
|
context_object0->set(slot_index, *slot_value0);
|
|
context_object1->set(slot_index, *slot_value1);
|
|
|
|
ContextSpecializationTester t(Just(OuterContext(context_object1, 0)));
|
|
|
|
Node* start = t.graph()->NewNode(t.common()->Start(2));
|
|
t.graph()->SetStart(start);
|
|
Handle<ScopeInfo> empty(ScopeInfo::Empty(t.main_isolate()),
|
|
handle_zone_scope.main_isolate());
|
|
const i::compiler::Operator* create_function_context =
|
|
t.javascript()->CreateFunctionContext(empty, 42, FUNCTION_SCOPE);
|
|
|
|
Node* context0 = t.graph()->NewNode(t.common()->Parameter(0), start);
|
|
Node* context1 =
|
|
t.graph()->NewNode(create_function_context, context0, start, start);
|
|
Node* context2 =
|
|
t.graph()->NewNode(create_function_context, context1, start, start);
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(0, slot_index),
|
|
context2, context2, start, start);
|
|
CHECK(!t.spec()->Reduce(store).Changed());
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(1, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context1, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(2, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context_object1, 0);
|
|
}
|
|
|
|
{
|
|
Node* store =
|
|
t.graph()->NewNode(t.javascript()->StoreContext(3, slot_index),
|
|
context2, context2, start, start);
|
|
t.CheckContextInputAndDepthChanges(store, context_object0, 0);
|
|
}
|
|
|
|
FLAG_concurrent_compiler_frontend = concurrent_compiler_frontend;
|
|
}
|
|
|
|
TEST(SpecializeJSFunction_ToConstant1) {
|
|
FunctionTester T(
|
|
"(function() { var x = 1; function inc(a)"
|
|
" { return a + x; } return inc; })()");
|
|
|
|
T.CheckCall(1.0, 0.0, 0.0);
|
|
T.CheckCall(2.0, 1.0, 0.0);
|
|
T.CheckCall(2.1, 1.1, 0.0);
|
|
}
|
|
|
|
|
|
TEST(SpecializeJSFunction_ToConstant2) {
|
|
FunctionTester T(
|
|
"(function() { var x = 1.5; var y = 2.25; var z = 3.75;"
|
|
" function f(a) { return a - x + y - z; } return f; })()");
|
|
|
|
T.CheckCall(-3.0, 0.0, 0.0);
|
|
T.CheckCall(-2.0, 1.0, 0.0);
|
|
T.CheckCall(-1.9, 1.1, 0.0);
|
|
}
|
|
|
|
|
|
TEST(SpecializeJSFunction_ToConstant3) {
|
|
FunctionTester T(
|
|
"(function() { var x = -11.5; function inc()"
|
|
" { return (function(a) { return a + x; }); }"
|
|
" return inc(); })()");
|
|
|
|
T.CheckCall(-11.5, 0.0, 0.0);
|
|
T.CheckCall(-10.5, 1.0, 0.0);
|
|
T.CheckCall(-10.4, 1.1, 0.0);
|
|
}
|
|
|
|
|
|
TEST(SpecializeJSFunction_ToConstant_uninit) {
|
|
{
|
|
FunctionTester T(
|
|
"(function() { if (false) { var x = 1; } function inc(a)"
|
|
" { return x; } return inc; })()"); // x is undefined!
|
|
i::Isolate* isolate = CcTest::i_isolate();
|
|
CHECK(
|
|
T.Call(T.Val(0.0), T.Val(0.0)).ToHandleChecked()->IsUndefined(isolate));
|
|
CHECK(
|
|
T.Call(T.Val(2.0), T.Val(0.0)).ToHandleChecked()->IsUndefined(isolate));
|
|
CHECK(T.Call(T.Val(-2.1), T.Val(0.0))
|
|
.ToHandleChecked()
|
|
->IsUndefined(isolate));
|
|
}
|
|
|
|
{
|
|
FunctionTester T(
|
|
"(function() { if (false) { var x = 1; } function inc(a)"
|
|
" { return a + x; } return inc; })()"); // x is undefined!
|
|
|
|
CHECK(T.Call(T.Val(0.0), T.Val(0.0)).ToHandleChecked()->IsNaN());
|
|
CHECK(T.Call(T.Val(2.0), T.Val(0.0)).ToHandleChecked()->IsNaN());
|
|
CHECK(T.Call(T.Val(-2.1), T.Val(0.0)).ToHandleChecked()->IsNaN());
|
|
}
|
|
}
|
|
|
|
} // namespace compiler
|
|
} // namespace internal
|
|
} // namespace v8
|