8b57bdba59
This is a reland of 13141c8a65
... with a fix for an UB issue of passing null pointers to memcpy()
when size is zero.
TBR=leszeks@chromium.org
Original change's description:
> [zone-compr] Introduce ZoneTypeTraits and ZoneCompression
>
> Also move zone compression flags to src/common/globals.h.
>
> Bug: v8:9923
> Change-Id: Id0a77720e735e2669a1e5eef48e1b4866ad99480
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324255
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69160}
Bug: v8:9923
Change-Id: I2245b81516c39ccea262c282c659ef601af57abf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2332165
Commit-Queue: Igor Sheludko (OOO Aug 3-17) <ishell@chromium.org>
Reviewed-by: Igor Sheludko (OOO Aug 3-17) <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69166}
145 lines
4.6 KiB
C++
145 lines
4.6 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/common-operator.h"
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#include "src/compiler/compiler-source-position-table.h"
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#include "src/compiler/graph-visualizer.h"
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#include "src/compiler/graph.h"
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#include "src/compiler/js-operator.h"
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#include "src/compiler/machine-operator.h"
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#include "src/compiler/node-origin-table.h"
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#include "src/compiler/node.h"
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#include "src/compiler/operator.h"
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#include "src/compiler/schedule.h"
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#include "src/compiler/scheduler.h"
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#include "src/compiler/verifier.h"
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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static Operator dummy_operator1(IrOpcode::kParameter, Operator::kNoWrite,
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"dummy", 1, 0, 0, 1, 0, 0);
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static Operator dummy_operator6(IrOpcode::kParameter, Operator::kNoWrite,
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"dummy", 6, 0, 0, 1, 0, 0);
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TEST(NodeWithNullInputReachableFromEnd) {
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HandleAndZoneScope scope(kCompressGraphZone);
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Graph graph(scope.main_zone());
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CommonOperatorBuilder common(scope.main_zone());
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Node* start = graph.NewNode(common.Start(0));
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graph.SetStart(start);
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Node* k = graph.NewNode(common.Int32Constant(0));
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Node* phi =
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graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start);
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phi->ReplaceInput(0, nullptr);
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graph.SetEnd(phi);
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SourcePositionTable table(&graph);
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NodeOriginTable table2(&graph);
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StdoutStream{} << AsJSON(graph, &table, &table2);
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}
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TEST(NodeWithNullControlReachableFromEnd) {
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HandleAndZoneScope scope(kCompressGraphZone);
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Graph graph(scope.main_zone());
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CommonOperatorBuilder common(scope.main_zone());
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Node* start = graph.NewNode(common.Start(0));
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graph.SetStart(start);
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Node* k = graph.NewNode(common.Int32Constant(0));
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Node* phi =
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graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start);
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phi->ReplaceInput(1, nullptr);
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graph.SetEnd(phi);
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SourcePositionTable table(&graph);
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NodeOriginTable table2(&graph);
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StdoutStream{} << AsJSON(graph, &table, &table2);
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}
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TEST(NodeWithNullInputReachableFromStart) {
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HandleAndZoneScope scope(kCompressGraphZone);
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Graph graph(scope.main_zone());
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CommonOperatorBuilder common(scope.main_zone());
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Node* start = graph.NewNode(common.Start(0));
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graph.SetStart(start);
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Node* k = graph.NewNode(common.Int32Constant(0));
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Node* phi =
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graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start);
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phi->ReplaceInput(0, nullptr);
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graph.SetEnd(start);
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SourcePositionTable table(&graph);
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NodeOriginTable table2(&graph);
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StdoutStream{} << AsJSON(graph, &table, &table2);
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}
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TEST(NodeWithNullControlReachableFromStart) {
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HandleAndZoneScope scope(kCompressGraphZone);
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Graph graph(scope.main_zone());
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CommonOperatorBuilder common(scope.main_zone());
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Node* start = graph.NewNode(common.Start(0));
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graph.SetStart(start);
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Node* merge = graph.NewNode(common.Merge(2), start, start);
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merge->ReplaceInput(1, nullptr);
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graph.SetEnd(merge);
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SourcePositionTable table(&graph);
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NodeOriginTable table2(&graph);
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StdoutStream{} << AsJSON(graph, &table, &table2);
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}
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TEST(NodeNetworkOfDummiesReachableFromEnd) {
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HandleAndZoneScope scope(kCompressGraphZone);
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Graph graph(scope.main_zone());
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CommonOperatorBuilder common(scope.main_zone());
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Node* start = graph.NewNode(common.Start(0));
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graph.SetStart(start);
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Node* n2 = graph.NewNode(&dummy_operator1, graph.start());
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Node* n3 = graph.NewNode(&dummy_operator1, graph.start());
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Node* n4 = graph.NewNode(&dummy_operator1, n2);
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Node* n5 = graph.NewNode(&dummy_operator1, n2);
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Node* n6 = graph.NewNode(&dummy_operator1, n3);
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Node* n7 = graph.NewNode(&dummy_operator1, n3);
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Node* n8 = graph.NewNode(&dummy_operator1, n5);
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Node* n9 = graph.NewNode(&dummy_operator1, n5);
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Node* n10 = graph.NewNode(&dummy_operator1, n9);
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Node* n11 = graph.NewNode(&dummy_operator1, n9);
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Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7};
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Node* end = graph.NewNode(&dummy_operator6, 6, end_dependencies);
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graph.SetEnd(end);
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SourcePositionTable table(&graph);
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NodeOriginTable table2(&graph);
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StdoutStream{} << AsJSON(graph, &table, &table2);
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}
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TEST(TestSourceIdAssigner) {
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Handle<SharedFunctionInfo> shared1;
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Handle<SharedFunctionInfo> shared2;
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SourceIdAssigner assigner(2);
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const int source_id1 = assigner.GetIdFor(shared1);
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const int source_id2 = assigner.GetIdFor(shared2);
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CHECK_EQ(source_id1, source_id2);
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CHECK_EQ(source_id1, assigner.GetIdAt(0));
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CHECK_EQ(source_id2, assigner.GetIdAt(1));
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}
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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