[turbofan] Deferred blocks splintering.

test/unittests/compiler/register-allocator-unittest.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/compiler/pipeline.h"
 #include "test/unittests/compiler/instruction-sequence-unittest.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 668 matching lines @@
   // so only var3 is spilled in deferred blocks. Greedy avoids spilling 1&2.
   // Expand the test once greedy is back online with this facility.
   const int var3_reg = 2;
   const int var3_slot = 2;
 
   EXPECT_FALSE(IsParallelMovePresent(def_of_v2, Instruction::START, sequence(),
                                      Reg(var3_reg), Slot()));
   EXPECT_TRUE(IsParallelMovePresent(call_in_b1, Instruction::START, sequence(),
                                     Reg(var3_reg), Slot(var3_slot)));
   EXPECT_TRUE(IsParallelMovePresent(end_of_b1, Instruction::START, sequence(),
-                                    Slot(var3_slot), Reg()));
+                                    Slot(var3_slot), Reg(var3_reg)));
 
   EXPECT_TRUE(IsParallelMovePresent(call_in_b2, Instruction::START, sequence(),
                                     Reg(var3_reg), Slot(var3_slot)));
   EXPECT_TRUE(IsParallelMovePresent(end_of_b2, Instruction::START, sequence(),
                                     Slot(var3_slot), Reg()));
 
 
   EXPECT_EQ(0,
             GetParallelMoveCount(start_of_b3, Instruction::START, sequence()));
 }
@@ skipping 75 matching lines @@
 INSTANTIATE_TEST_CASE_P(
     RegisterAllocatorTest, SlotConstraintTest,
     ::testing::Combine(::testing::ValuesIn(kParameterTypes),
                        ::testing::Range(0, SlotConstraintTest::kMaxVariant)));
 
 #endif  // GTEST_HAS_COMBINE
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8