[test] Protect against infinite loops in LiveRange logic.

test/unittests/compiler/live-range-unittest.cc

 // Copyright 2015 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 "test/unittests/compiler/live-range-builder.h"
 #include "test/unittests/test-utils.h"
 
 
 // TODO(mtrofin): would we want to centralize this definition?
 #ifdef DEBUG
 #define V8_ASSERT_DEBUG_DEATH(statement, regex) \
   ASSERT_DEATH_IF_SUPPORTED(statement, regex)
+#define DISABLE_IN_RELEASE(Name) Name
 
 #else
 #define V8_ASSERT_DEBUG_DEATH(statement, regex) statement
+#define DISABLE_IN_RELEASE(Name) DISABLED_##Name
 #endif  // DEBUG
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 class LiveRangeUnitTest : public TestWithZone {
  public:
   // Split helper, to avoid int->LifetimePosition conversion nuisance.
   LiveRange* Split(LiveRange* range, int pos) {
@@ skipping 49 matching lines @@
       ".*");
 }
 
 
 TEST_F(LiveRangeUnitTest, SplitInvalidStart) {
   TopLevelLiveRange* range = TestRangeBuilder(zone()).Build(0, 1);
   V8_ASSERT_DEBUG_DEATH(Split(range, 0), ".*");
 }
 
 
-TEST_F(LiveRangeUnitTest, InvalidSplitEnd) {
+TEST_F(LiveRangeUnitTest, DISABLE_IN_RELEASE(InvalidSplitEnd)) {
   TopLevelLiveRange* range = TestRangeBuilder(zone()).Build(0, 1);
   ASSERT_DEATH_IF_SUPPORTED(Split(range, 1), ".*");
 }
 
 
-TEST_F(LiveRangeUnitTest, SplitInvalidPreStart) {
+TEST_F(LiveRangeUnitTest, DISABLE_IN_RELEASE(SplitInvalidPreStart)) {
   TopLevelLiveRange* range = TestRangeBuilder(zone()).Build(1, 2);
   ASSERT_DEATH_IF_SUPPORTED(Split(range, 0), ".*");
 }
 
 
-TEST_F(LiveRangeUnitTest, SplitInvalidPostEnd) {
+TEST_F(LiveRangeUnitTest, DISABLE_IN_RELEASE(SplitInvalidPostEnd)) {
   TopLevelLiveRange* range = TestRangeBuilder(zone()).Build(0, 1);
   ASSERT_DEATH_IF_SUPPORTED(Split(range, 2), ".*");
 }
 
 
 TEST_F(LiveRangeUnitTest, SplitSingleIntervalNoUsePositions) {
   TopLevelLiveRange* range = TestRangeBuilder(zone()).Build(0, 2);
   LiveRange* child = Split(range, 1);
 
   EXPECT_NE(nullptr, range->next());
@@ skipping 321 matching lines @@
   EXPECT_EQ(1, splinter->relative_id());
   EXPECT_EQ(3, splinter_child->relative_id());
 
   vreg->Merge(splinter, zone());
   EXPECT_EQ(1, splinter->relative_id());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8