Update V8 to version 4.1.0.21
This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.
Original commit message:
Version 4.1.0.21 (cherry-pick)
Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412
Unlink pages from the space page list after evacuation.
BUG=430201
LOG=N
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/953813002
Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}
---
FPIIM-449
Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/test/cctest/compiler/test-graph-visualizer.cc b/test/cctest/compiler/test-graph-visualizer.cc
new file mode 100644
index 0000000..ce3e6b7
--- /dev/null
+++ b/test/cctest/compiler/test-graph-visualizer.cc
@@ -0,0 +1,90 @@
+// Copyright 2014 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.
+
+#include "src/v8.h"
+#include "test/cctest/cctest.h"
+
+#include "src/compiler/common-operator.h"
+#include "src/compiler/graph.h"
+#include "src/compiler/graph-visualizer.h"
+#include "src/compiler/js-operator.h"
+#include "src/compiler/machine-operator.h"
+#include "src/compiler/node.h"
+#include "src/compiler/operator.h"
+#include "src/compiler/schedule.h"
+#include "src/compiler/scheduler.h"
+#include "src/compiler/verifier.h"
+
+using namespace v8::internal;
+using namespace v8::internal::compiler;
+
+TEST(NodeWithNullInputReachableFromEnd) {
+ HandleAndZoneScope scope;
+ Graph graph(scope.main_zone());
+ CommonOperatorBuilder common(scope.main_zone());
+
+ Node* start = graph.NewNode(common.Start(0));
+ graph.SetStart(start);
+ Node* k = graph.NewNode(common.Int32Constant(0));
+ Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
+ phi->ReplaceInput(0, NULL);
+ graph.SetEnd(phi);
+
+ OFStream os(stdout);
+ os << AsDOT(graph);
+ os << AsJSON(graph);
+}
+
+
+TEST(NodeWithNullControlReachableFromEnd) {
+ HandleAndZoneScope scope;
+ Graph graph(scope.main_zone());
+ CommonOperatorBuilder common(scope.main_zone());
+
+ Node* start = graph.NewNode(common.Start(0));
+ graph.SetStart(start);
+ Node* k = graph.NewNode(common.Int32Constant(0));
+ Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
+ phi->ReplaceInput(1, NULL);
+ graph.SetEnd(phi);
+
+ OFStream os(stdout);
+ os << AsDOT(graph);
+ os << AsJSON(graph);
+}
+
+
+TEST(NodeWithNullInputReachableFromStart) {
+ HandleAndZoneScope scope;
+ Graph graph(scope.main_zone());
+ CommonOperatorBuilder common(scope.main_zone());
+
+ Node* start = graph.NewNode(common.Start(0));
+ graph.SetStart(start);
+ Node* k = graph.NewNode(common.Int32Constant(0));
+ Node* phi = graph.NewNode(common.Phi(kMachAnyTagged, 1), k, start);
+ phi->ReplaceInput(0, NULL);
+ graph.SetEnd(start);
+
+ OFStream os(stdout);
+ os << AsDOT(graph);
+ os << AsJSON(graph);
+}
+
+
+TEST(NodeWithNullControlReachableFromStart) {
+ HandleAndZoneScope scope;
+ Graph graph(scope.main_zone());
+ CommonOperatorBuilder common(scope.main_zone());
+
+ Node* start = graph.NewNode(common.Start(0));
+ graph.SetStart(start);
+ Node* merge = graph.NewNode(common.Merge(2), start, start);
+ merge->ReplaceInput(1, NULL);
+ graph.SetEnd(merge);
+
+ OFStream os(stdout);
+ os << AsDOT(graph);
+ os << AsJSON(graph);
+}