Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5 | #include "src/compiler/common-operator.h" |
| 6 | #include "src/compiler/graph.h" |
| 7 | #include "src/compiler/graph-visualizer.h" |
| 8 | #include "src/compiler/js-operator.h" |
| 9 | #include "src/compiler/machine-operator.h" |
| 10 | #include "src/compiler/node.h" |
| 11 | #include "src/compiler/operator.h" |
| 12 | #include "src/compiler/schedule.h" |
| 13 | #include "src/compiler/scheduler.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 14 | #include "src/compiler/source-position.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 15 | #include "src/compiler/verifier.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 16 | #include "test/cctest/cctest.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 17 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 18 | namespace v8 { |
| 19 | namespace internal { |
| 20 | namespace compiler { |
| 21 | |
| 22 | static Operator dummy_operator1(IrOpcode::kParameter, Operator::kNoWrite, |
| 23 | "dummy", 1, 0, 0, 1, 0, 0); |
| 24 | static Operator dummy_operator6(IrOpcode::kParameter, Operator::kNoWrite, |
| 25 | "dummy", 6, 0, 0, 1, 0, 0); |
| 26 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 27 | |
| 28 | TEST(NodeWithNullInputReachableFromEnd) { |
| 29 | HandleAndZoneScope scope; |
| 30 | Graph graph(scope.main_zone()); |
| 31 | CommonOperatorBuilder common(scope.main_zone()); |
| 32 | |
| 33 | Node* start = graph.NewNode(common.Start(0)); |
| 34 | graph.SetStart(start); |
| 35 | Node* k = graph.NewNode(common.Int32Constant(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 36 | Node* phi = |
| 37 | graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 38 | phi->ReplaceInput(0, NULL); |
| 39 | graph.SetEnd(phi); |
| 40 | |
| 41 | OFStream os(stdout); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 42 | SourcePositionTable table(&graph); |
| 43 | os << AsJSON(graph, &table); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | |
| 47 | TEST(NodeWithNullControlReachableFromEnd) { |
| 48 | HandleAndZoneScope scope; |
| 49 | Graph graph(scope.main_zone()); |
| 50 | CommonOperatorBuilder common(scope.main_zone()); |
| 51 | |
| 52 | Node* start = graph.NewNode(common.Start(0)); |
| 53 | graph.SetStart(start); |
| 54 | Node* k = graph.NewNode(common.Int32Constant(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 55 | Node* phi = |
| 56 | graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 57 | phi->ReplaceInput(1, NULL); |
| 58 | graph.SetEnd(phi); |
| 59 | |
| 60 | OFStream os(stdout); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 61 | SourcePositionTable table(&graph); |
| 62 | os << AsJSON(graph, &table); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | |
| 66 | TEST(NodeWithNullInputReachableFromStart) { |
| 67 | HandleAndZoneScope scope; |
| 68 | Graph graph(scope.main_zone()); |
| 69 | CommonOperatorBuilder common(scope.main_zone()); |
| 70 | |
| 71 | Node* start = graph.NewNode(common.Start(0)); |
| 72 | graph.SetStart(start); |
| 73 | Node* k = graph.NewNode(common.Int32Constant(0)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 74 | Node* phi = |
| 75 | graph.NewNode(common.Phi(MachineRepresentation::kTagged, 1), k, start); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 76 | phi->ReplaceInput(0, NULL); |
| 77 | graph.SetEnd(start); |
| 78 | |
| 79 | OFStream os(stdout); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 80 | SourcePositionTable table(&graph); |
| 81 | os << AsJSON(graph, &table); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | |
| 85 | TEST(NodeWithNullControlReachableFromStart) { |
| 86 | HandleAndZoneScope scope; |
| 87 | Graph graph(scope.main_zone()); |
| 88 | CommonOperatorBuilder common(scope.main_zone()); |
| 89 | |
| 90 | Node* start = graph.NewNode(common.Start(0)); |
| 91 | graph.SetStart(start); |
| 92 | Node* merge = graph.NewNode(common.Merge(2), start, start); |
| 93 | merge->ReplaceInput(1, NULL); |
| 94 | graph.SetEnd(merge); |
| 95 | |
| 96 | OFStream os(stdout); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 97 | SourcePositionTable table(&graph); |
| 98 | os << AsJSON(graph, &table); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 99 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 100 | |
| 101 | |
| 102 | TEST(NodeNetworkOfDummiesReachableFromEnd) { |
| 103 | HandleAndZoneScope scope; |
| 104 | Graph graph(scope.main_zone()); |
| 105 | CommonOperatorBuilder common(scope.main_zone()); |
| 106 | |
| 107 | Node* start = graph.NewNode(common.Start(0)); |
| 108 | graph.SetStart(start); |
| 109 | Node* n2 = graph.NewNode(&dummy_operator1, graph.start()); |
| 110 | Node* n3 = graph.NewNode(&dummy_operator1, graph.start()); |
| 111 | Node* n4 = graph.NewNode(&dummy_operator1, n2); |
| 112 | Node* n5 = graph.NewNode(&dummy_operator1, n2); |
| 113 | Node* n6 = graph.NewNode(&dummy_operator1, n3); |
| 114 | Node* n7 = graph.NewNode(&dummy_operator1, n3); |
| 115 | Node* n8 = graph.NewNode(&dummy_operator1, n5); |
| 116 | Node* n9 = graph.NewNode(&dummy_operator1, n5); |
| 117 | Node* n10 = graph.NewNode(&dummy_operator1, n9); |
| 118 | Node* n11 = graph.NewNode(&dummy_operator1, n9); |
| 119 | Node* end_dependencies[6] = {n4, n8, n10, n11, n6, n7}; |
| 120 | Node* end = graph.NewNode(&dummy_operator6, 6, end_dependencies); |
| 121 | graph.SetEnd(end); |
| 122 | |
| 123 | OFStream os(stdout); |
| 124 | SourcePositionTable table(&graph); |
| 125 | os << AsJSON(graph, &table); |
| 126 | } |
| 127 | |
| 128 | } // namespace compiler |
| 129 | } // namespace internal |
| 130 | } // namespace v8 |