Simplify scheduler API by removing zone scopes.

test/cctest/compiler/test-scheduler.cc

 // 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 "src/compiler/access-builder.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/generic-node-inl.h"
 #include "src/compiler/generic-node.h"
@@ skipping 105 matching lines @@
   return node_count;
 }
 
 
 static Schedule* ComputeAndVerifySchedule(int expected, Graph* graph) {
   if (FLAG_trace_turbo) {
     OFStream os(stdout);
     os << AsDOT(*graph);
   }
 
-  ZonePool zone_pool(graph->zone()->isolate());
-  Schedule* schedule = Scheduler::ComputeSchedule(&zone_pool, graph);
+  Schedule* schedule = Scheduler::ComputeSchedule(graph->zone(), graph);
 
   if (FLAG_trace_turbo_scheduler) {
     OFStream os(stdout);
     os << *schedule << std::endl;
   }
   ScheduleVerifier::Run(schedule);
   CHECK_EQ(expected, GetScheduledNodeCount(schedule));
   return schedule;
 }
 
 
 TEST(RPODegenerate1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 1, false);
   CHECK_EQ(schedule.start(), order->at(0));
 }
 
 
 TEST(RPODegenerate2) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   schedule.AddGoto(schedule.start(), schedule.end());
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 2, false);
   CHECK_EQ(schedule.start(), order->at(0));
   CHECK_EQ(schedule.end(), order->at(1));
 }
 
 
 TEST(RPOLine) {
   HandleAndZoneScope scope;
 
   for (int i = 0; i < 10; i++) {
     Schedule schedule(scope.main_zone());
 
     BasicBlock* last = schedule.start();
     for (int j = 0; j < i; j++) {
       BasicBlock* block = schedule.NewBasicBlock();
       block->set_deferred(i & 1);
       schedule.AddGoto(last, block);
       last = block;
     }
-    ZonePool zone_pool(scope.main_isolate());
     BasicBlockVector* order =
-        Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+        Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
     CheckRPONumbers(order, 1 + i, false);
 
     for (size_t i = 0; i < schedule.BasicBlockCount(); i++) {
       BasicBlock* block = schedule.GetBlockById(BasicBlock::Id::FromSize(i));
       if (block->rpo_number() >= 0 && block->SuccessorCount() == 1) {
         CHECK(block->rpo_number() + 1 == block->SuccessorAt(0)->rpo_number());
       }
     }
   }
 }
 
 
 TEST(RPOSelfLoop) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
   schedule.AddSuccessorForTesting(schedule.start(), schedule.start());
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 1, true);
   BasicBlock* loop[] = {schedule.start()};
   CheckLoop(order, loop, 1);
 }
 
 
 TEST(RPOEntryLoop) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
   schedule.AddSuccessorForTesting(schedule.start(), schedule.end());
   schedule.AddSuccessorForTesting(schedule.end(), schedule.start());
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 2, true);
   BasicBlock* loop[] = {schedule.start(), schedule.end()};
   CheckLoop(order, loop, 2);
 }
 
 
 TEST(RPOEndLoop) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
   SmartPointer<TestLoop> loop1(CreateLoop(&schedule, 2));
   schedule.AddSuccessorForTesting(schedule.start(), loop1->header());
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 3, true);
   loop1->Check(order);
 }
 
 
 TEST(RPOEndLoopNested) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
   SmartPointer<TestLoop> loop1(CreateLoop(&schedule, 2));
   schedule.AddSuccessorForTesting(schedule.start(), loop1->header());
   schedule.AddSuccessorForTesting(loop1->last(), schedule.start());
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 3, true);
   loop1->Check(order);
 }
 
 
 TEST(RPODiamond) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   BasicBlock* A = schedule.start();
   BasicBlock* B = schedule.NewBasicBlock();
   BasicBlock* C = schedule.NewBasicBlock();
   BasicBlock* D = schedule.end();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(A, C);
   schedule.AddSuccessorForTesting(B, D);
   schedule.AddSuccessorForTesting(C, D);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 4, false);
 
   CHECK_EQ(0, A->rpo_number());
   CHECK((B->rpo_number() == 1 && C->rpo_number() == 2) ||
         (B->rpo_number() == 2 && C->rpo_number() == 1));
   CHECK_EQ(3, D->rpo_number());
 }
 
 
 TEST(RPOLoop1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   BasicBlock* A = schedule.start();
   BasicBlock* B = schedule.NewBasicBlock();
   BasicBlock* C = schedule.NewBasicBlock();
   BasicBlock* D = schedule.end();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(B, C);
   schedule.AddSuccessorForTesting(C, B);
   schedule.AddSuccessorForTesting(C, D);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 4, true);
   BasicBlock* loop[] = {B, C};
   CheckLoop(order, loop, 2);
 }
 
 
 TEST(RPOLoop2) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   BasicBlock* A = schedule.start();
   BasicBlock* B = schedule.NewBasicBlock();
   BasicBlock* C = schedule.NewBasicBlock();
   BasicBlock* D = schedule.end();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(B, C);
   schedule.AddSuccessorForTesting(C, B);
   schedule.AddSuccessorForTesting(B, D);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 4, true);
   BasicBlock* loop[] = {B, C};
   CheckLoop(order, loop, 2);
 }
 
 
 TEST(RPOLoopN) {
   HandleAndZoneScope scope;
 
   for (int i = 0; i < 11; i++) {
@@ skipping 21 matching lines @@
     if (i == 4) schedule.AddSuccessorForTesting(E, B);
     if (i == 5) schedule.AddSuccessorForTesting(F, B);
 
     // Throw in extra loop exits from time to time.
     if (i == 6) schedule.AddSuccessorForTesting(B, G);
     if (i == 7) schedule.AddSuccessorForTesting(C, G);
     if (i == 8) schedule.AddSuccessorForTesting(D, G);
     if (i == 9) schedule.AddSuccessorForTesting(E, G);
     if (i == 10) schedule.AddSuccessorForTesting(F, G);
 
-    ZonePool zone_pool(scope.main_isolate());
     BasicBlockVector* order =
-        Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+        Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
     CheckRPONumbers(order, 7, true);
     BasicBlock* loop[] = {B, C, D, E, F};
     CheckLoop(order, loop, 5);
   }
 }
 
 
 TEST(RPOLoopNest1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   BasicBlock* A = schedule.start();
   BasicBlock* B = schedule.NewBasicBlock();
   BasicBlock* C = schedule.NewBasicBlock();
   BasicBlock* D = schedule.NewBasicBlock();
   BasicBlock* E = schedule.NewBasicBlock();
   BasicBlock* F = schedule.end();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(B, C);
   schedule.AddSuccessorForTesting(C, D);
   schedule.AddSuccessorForTesting(D, C);
   schedule.AddSuccessorForTesting(D, E);
   schedule.AddSuccessorForTesting(E, B);
   schedule.AddSuccessorForTesting(E, F);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 6, true);
   BasicBlock* loop1[] = {B, C, D, E};
   CheckLoop(order, loop1, 4);
 
   BasicBlock* loop2[] = {C, D};
   CheckLoop(order, loop2, 2);
 }
 
 
 TEST(RPOLoopNest2) {
@@ skipping 14 matching lines @@
   schedule.AddSuccessorForTesting(C, D);
   schedule.AddSuccessorForTesting(D, E);
   schedule.AddSuccessorForTesting(E, F);
   schedule.AddSuccessorForTesting(F, G);
   schedule.AddSuccessorForTesting(G, H);
 
   schedule.AddSuccessorForTesting(E, D);
   schedule.AddSuccessorForTesting(F, C);
   schedule.AddSuccessorForTesting(G, B);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 8, true);
   BasicBlock* loop1[] = {B, C, D, E, F, G};
   CheckLoop(order, loop1, 6);
 
   BasicBlock* loop2[] = {C, D, E, F};
   CheckLoop(order, loop2, 4);
 
   BasicBlock* loop3[] = {D, E};
   CheckLoop(order, loop3, 2);
 }
 
 
 TEST(RPOLoopFollow1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   SmartPointer<TestLoop> loop1(CreateLoop(&schedule, 1));
   SmartPointer<TestLoop> loop2(CreateLoop(&schedule, 1));
 
   BasicBlock* A = schedule.start();
   BasicBlock* E = schedule.end();
 
   schedule.AddSuccessorForTesting(A, loop1->header());
   schedule.AddSuccessorForTesting(loop1->header(), loop2->header());
   schedule.AddSuccessorForTesting(loop2->last(), E);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
 
   CHECK_EQ(static_cast<int>(schedule.BasicBlockCount()),
            static_cast<int>(order->size()));
 
   loop1->Check(order);
   loop2->Check(order);
 }
 
 
 TEST(RPOLoopFollow2) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   SmartPointer<TestLoop> loop1(CreateLoop(&schedule, 1));
   SmartPointer<TestLoop> loop2(CreateLoop(&schedule, 1));
 
   BasicBlock* A = schedule.start();
   BasicBlock* S = schedule.NewBasicBlock();
   BasicBlock* E = schedule.end();
 
   schedule.AddSuccessorForTesting(A, loop1->header());
   schedule.AddSuccessorForTesting(loop1->header(), S);
   schedule.AddSuccessorForTesting(S, loop2->header());
   schedule.AddSuccessorForTesting(loop2->last(), E);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
 
   CHECK_EQ(static_cast<int>(schedule.BasicBlockCount()),
            static_cast<int>(order->size()));
   loop1->Check(order);
   loop2->Check(order);
 }
 
 
 TEST(RPOLoopFollowN) {
   HandleAndZoneScope scope;
 
   for (int size = 1; size < 5; size++) {
     for (int exit = 0; exit < size; exit++) {
       Schedule schedule(scope.main_zone());
       SmartPointer<TestLoop> loop1(CreateLoop(&schedule, size));
       SmartPointer<TestLoop> loop2(CreateLoop(&schedule, size));
       BasicBlock* A = schedule.start();
       BasicBlock* E = schedule.end();
 
       schedule.AddSuccessorForTesting(A, loop1->header());
       schedule.AddSuccessorForTesting(loop1->nodes[exit], loop2->header());
       schedule.AddSuccessorForTesting(loop2->nodes[exit], E);
-      ZonePool zone_pool(scope.main_isolate());
       BasicBlockVector* order =
-          Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+          Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
 
       CHECK_EQ(static_cast<int>(schedule.BasicBlockCount()),
                static_cast<int>(order->size()));
       loop1->Check(order);
       loop2->Check(order);
     }
   }
 }
 
 
 TEST(RPONestedLoopFollow1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
 
   SmartPointer<TestLoop> loop1(CreateLoop(&schedule, 1));
   SmartPointer<TestLoop> loop2(CreateLoop(&schedule, 1));
 
   BasicBlock* A = schedule.start();
   BasicBlock* B = schedule.NewBasicBlock();
   BasicBlock* C = schedule.NewBasicBlock();
   BasicBlock* E = schedule.end();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(B, loop1->header());
   schedule.AddSuccessorForTesting(loop1->header(), loop2->header());
   schedule.AddSuccessorForTesting(loop2->last(), C);
   schedule.AddSuccessorForTesting(C, E);
   schedule.AddSuccessorForTesting(C, B);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
 
   CHECK_EQ(static_cast<int>(schedule.BasicBlockCount()),
            static_cast<int>(order->size()));
   loop1->Check(order);
   loop2->Check(order);
 
   BasicBlock* loop3[] = {B, loop1->nodes[0], loop2->nodes[0], C};
   CheckLoop(order, loop3, 4);
 }
 
 
 TEST(RPOLoopBackedges1) {
   HandleAndZoneScope scope;
 
   int size = 8;
   for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
       Schedule schedule(scope.main_zone());
       BasicBlock* A = schedule.start();
       BasicBlock* E = schedule.end();
 
       SmartPointer<TestLoop> loop1(CreateLoop(&schedule, size));
       schedule.AddSuccessorForTesting(A, loop1->header());
       schedule.AddSuccessorForTesting(loop1->last(), E);
 
       schedule.AddSuccessorForTesting(loop1->nodes[i], loop1->header());
       schedule.AddSuccessorForTesting(loop1->nodes[j], E);
 
-      ZonePool zone_pool(scope.main_isolate());
       BasicBlockVector* order =
-          Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+          Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
       CheckRPONumbers(order, schedule.BasicBlockCount(), true);
       loop1->Check(order);
     }
   }
 }
 
 
 TEST(RPOLoopOutedges1) {
   HandleAndZoneScope scope;
 
   int size = 8;
   for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
       Schedule schedule(scope.main_zone());
       BasicBlock* A = schedule.start();
       BasicBlock* D = schedule.NewBasicBlock();
       BasicBlock* E = schedule.end();
 
       SmartPointer<TestLoop> loop1(CreateLoop(&schedule, size));
       schedule.AddSuccessorForTesting(A, loop1->header());
       schedule.AddSuccessorForTesting(loop1->last(), E);
 
       schedule.AddSuccessorForTesting(loop1->nodes[i], loop1->header());
       schedule.AddSuccessorForTesting(loop1->nodes[j], D);
       schedule.AddSuccessorForTesting(D, E);
 
-      ZonePool zone_pool(scope.main_isolate());
       BasicBlockVector* order =
-          Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+          Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
       CheckRPONumbers(order, schedule.BasicBlockCount(), true);
       loop1->Check(order);
     }
   }
 }
 
 
 TEST(RPOLoopOutedges2) {
   HandleAndZoneScope scope;
 
   int size = 8;
   for (int i = 0; i < size; i++) {
     Schedule schedule(scope.main_zone());
     BasicBlock* A = schedule.start();
     BasicBlock* E = schedule.end();
 
     SmartPointer<TestLoop> loop1(CreateLoop(&schedule, size));
     schedule.AddSuccessorForTesting(A, loop1->header());
     schedule.AddSuccessorForTesting(loop1->last(), E);
 
     for (int j = 0; j < size; j++) {
       BasicBlock* O = schedule.NewBasicBlock();
       schedule.AddSuccessorForTesting(loop1->nodes[j], O);
       schedule.AddSuccessorForTesting(O, E);
     }
 
-    ZonePool zone_pool(scope.main_isolate());
     BasicBlockVector* order =
-        Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+        Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
     CheckRPONumbers(order, schedule.BasicBlockCount(), true);
     loop1->Check(order);
   }
 }
 
 
 TEST(RPOLoopOutloops1) {
   HandleAndZoneScope scope;
 
   int size = 8;
   for (int i = 0; i < size; i++) {
     Schedule schedule(scope.main_zone());
     BasicBlock* A = schedule.start();
     BasicBlock* E = schedule.end();
     SmartPointer<TestLoop> loop1(CreateLoop(&schedule, size));
     schedule.AddSuccessorForTesting(A, loop1->header());
     schedule.AddSuccessorForTesting(loop1->last(), E);
 
     TestLoop** loopN = new TestLoop* [size];
     for (int j = 0; j < size; j++) {
       loopN[j] = CreateLoop(&schedule, 2);
       schedule.AddSuccessorForTesting(loop1->nodes[j], loopN[j]->header());
       schedule.AddSuccessorForTesting(loopN[j]->last(), E);
     }
 
-    ZonePool zone_pool(scope.main_isolate());
     BasicBlockVector* order =
-        Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+        Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
     CheckRPONumbers(order, schedule.BasicBlockCount(), true);
     loop1->Check(order);
 
     for (int j = 0; j < size; j++) {
       loopN[j]->Check(order);
       delete loopN[j];
     }
     delete[] loopN;
   }
 }
@@ skipping 10 matching lines @@
   BasicBlock* E = schedule.NewBasicBlock();
 
   schedule.AddSuccessorForTesting(A, B);
   schedule.AddSuccessorForTesting(B, C);
   schedule.AddSuccessorForTesting(B, D);
   schedule.AddSuccessorForTesting(B, E);
   schedule.AddSuccessorForTesting(C, B);
   schedule.AddSuccessorForTesting(D, B);
   schedule.AddSuccessorForTesting(E, B);
 
-  ZonePool zone_pool(scope.main_isolate());
-  BasicBlockVector* order = Scheduler::ComputeSpecialRPO(&zone_pool, &schedule);
+  BasicBlockVector* order =
+      Scheduler::ComputeSpecialRPO(scope.main_zone(), &schedule);
   CheckRPONumbers(order, 5, true);
 
   BasicBlock* loop1[] = {B, C, D, E};
   CheckLoop(order, loop1, 4);
 }
 
 
 TEST(BuildScheduleEmpty) {
   HandleAndZoneScope scope;
   Graph graph(scope.main_zone());
   CommonOperatorBuilder builder(scope.main_zone());
   graph.SetStart(graph.NewNode(builder.Start(0)));
   graph.SetEnd(graph.NewNode(builder.End(), graph.start()));
 
-  ZonePool zone_pool(scope.main_isolate());
-  USE(Scheduler::ComputeSchedule(&zone_pool, &graph));
+  USE(Scheduler::ComputeSchedule(scope.main_zone(), &graph));
 }
 
 
 TEST(BuildScheduleOneParameter) {
   HandleAndZoneScope scope;
   Graph graph(scope.main_zone());
   CommonOperatorBuilder builder(scope.main_zone());
   graph.SetStart(graph.NewNode(builder.Start(0)));
 
   Node* p1 = graph.NewNode(builder.Parameter(0), graph.start());
   Node* ret = graph.NewNode(builder.Return(), p1, graph.start(), graph.start());
 
   graph.SetEnd(graph.NewNode(builder.End(), ret));
 
-  ZonePool zone_pool(scope.main_isolate());
-  USE(Scheduler::ComputeSchedule(&zone_pool, &graph));
+  USE(Scheduler::ComputeSchedule(scope.main_zone(), &graph));
 }
 
 
 TEST(BuildScheduleIfSplit) {
   HandleAndZoneScope scope;
   Graph graph(scope.main_zone());
   CommonOperatorBuilder builder(scope.main_zone());
   JSOperatorBuilder js_builder(scope.main_zone());
   graph.SetStart(graph.NewNode(builder.Start(3)));
 
@@ skipping 1333 matching lines @@
   graph.SetEnd(end);
 
   Schedule* schedule = ComputeAndVerifySchedule(6, &graph);
   BasicBlock* block = schedule->block(loop);
   CHECK_NE(NULL, loop);
   CHECK_EQ(block, schedule->block(effect));
   CHECK_GE(block->rpo_number(), 0);
 }
 
 #endif