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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
197 lines
7.3 KiB
C++
197 lines
7.3 KiB
C++
//===- MachineInstrBundleIteratorTest.cpp ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineInstrBundleIterator.h"
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#include "llvm/ADT/ilist_node.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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struct MyBundledInstr
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: public ilist_node<MyBundledInstr, ilist_sentinel_tracking<true>> {
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bool isBundledWithPred() const { return true; }
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bool isBundledWithSucc() const { return true; }
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};
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typedef MachineInstrBundleIterator<MyBundledInstr> bundled_iterator;
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typedef MachineInstrBundleIterator<const MyBundledInstr> const_bundled_iterator;
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typedef MachineInstrBundleIterator<MyBundledInstr, true>
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reverse_bundled_iterator;
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typedef MachineInstrBundleIterator<const MyBundledInstr, true>
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const_reverse_bundled_iterator;
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#ifdef GTEST_HAS_DEATH_TEST
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#ifndef NDEBUG
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TEST(MachineInstrBundleIteratorTest, CheckForBundles) {
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MyBundledInstr MBI;
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auto I = MBI.getIterator();
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auto RI = I.getReverse();
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// Confirm that MBI is always considered bundled.
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EXPECT_TRUE(MBI.isBundledWithPred());
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EXPECT_TRUE(MBI.isBundledWithSucc());
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// Confirm that iterators check in their constructor for bundled iterators.
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EXPECT_DEATH((void)static_cast<bundled_iterator>(I),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<bundled_iterator>(MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<bundled_iterator>(&MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_bundled_iterator>(I),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_bundled_iterator>(MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_bundled_iterator>(&MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(RI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(&MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(RI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(MBI),
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"not legal to initialize");
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EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(&MBI),
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"not legal to initialize");
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}
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#endif
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#endif
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TEST(MachineInstrBundleIteratorTest, CompareToBundledMI) {
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MyBundledInstr MBI;
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const MyBundledInstr &CMBI = MBI;
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bundled_iterator I;
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const_bundled_iterator CI;
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// Confirm that MBI is always considered bundled.
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EXPECT_TRUE(MBI.isBundledWithPred());
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EXPECT_TRUE(MBI.isBundledWithSucc());
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// These invocations will crash when !NDEBUG if a conversion is taking place.
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// These checks confirm that comparison operators don't use any conversion
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// operators.
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ASSERT_FALSE(MBI == I);
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ASSERT_FALSE(&MBI == I);
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ASSERT_FALSE(CMBI == I);
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ASSERT_FALSE(&CMBI == I);
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ASSERT_FALSE(I == MBI);
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ASSERT_FALSE(I == &MBI);
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ASSERT_FALSE(I == CMBI);
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ASSERT_FALSE(I == &CMBI);
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ASSERT_FALSE(MBI == CI);
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ASSERT_FALSE(&MBI == CI);
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ASSERT_FALSE(CMBI == CI);
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ASSERT_FALSE(&CMBI == CI);
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ASSERT_FALSE(CI == MBI);
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ASSERT_FALSE(CI == &MBI);
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ASSERT_FALSE(CI == CMBI);
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ASSERT_FALSE(CI == &CMBI);
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ASSERT_FALSE(MBI.getIterator() == I);
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ASSERT_FALSE(CMBI.getIterator() == I);
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ASSERT_FALSE(I == MBI.getIterator());
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ASSERT_FALSE(I == CMBI.getIterator());
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ASSERT_FALSE(MBI.getIterator() == CI);
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ASSERT_FALSE(CMBI.getIterator() == CI);
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ASSERT_FALSE(CI == MBI.getIterator());
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ASSERT_FALSE(CI == CMBI.getIterator());
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ASSERT_TRUE(MBI != I);
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ASSERT_TRUE(&MBI != I);
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ASSERT_TRUE(CMBI != I);
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ASSERT_TRUE(&CMBI != I);
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ASSERT_TRUE(I != MBI);
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ASSERT_TRUE(I != &MBI);
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ASSERT_TRUE(I != CMBI);
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ASSERT_TRUE(I != &CMBI);
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ASSERT_TRUE(MBI != CI);
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ASSERT_TRUE(&MBI != CI);
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ASSERT_TRUE(CMBI != CI);
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ASSERT_TRUE(&CMBI != CI);
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ASSERT_TRUE(CI != MBI);
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ASSERT_TRUE(CI != &MBI);
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ASSERT_TRUE(CI != CMBI);
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ASSERT_TRUE(CI != &CMBI);
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ASSERT_TRUE(MBI.getIterator() != I);
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ASSERT_TRUE(CMBI.getIterator() != I);
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ASSERT_TRUE(I != MBI.getIterator());
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ASSERT_TRUE(I != CMBI.getIterator());
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ASSERT_TRUE(MBI.getIterator() != CI);
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ASSERT_TRUE(CMBI.getIterator() != CI);
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ASSERT_TRUE(CI != MBI.getIterator());
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ASSERT_TRUE(CI != CMBI.getIterator());
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}
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struct MyUnbundledInstr
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: ilist_node<MyUnbundledInstr, ilist_sentinel_tracking<true>> {
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bool isBundledWithPred() const { return false; }
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bool isBundledWithSucc() const { return false; }
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};
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typedef MachineInstrBundleIterator<MyUnbundledInstr> unbundled_iterator;
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typedef MachineInstrBundleIterator<const MyUnbundledInstr>
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const_unbundled_iterator;
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typedef MachineInstrBundleIterator<MyUnbundledInstr, true>
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reverse_unbundled_iterator;
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typedef MachineInstrBundleIterator<const MyUnbundledInstr, true>
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const_reverse_unbundled_iterator;
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TEST(MachineInstrBundleIteratorTest, ReverseConstructor) {
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simple_ilist<MyUnbundledInstr, ilist_sentinel_tracking<true>> L;
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const auto &CL = L;
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MyUnbundledInstr A, B;
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L.insert(L.end(), A);
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L.insert(L.end(), B);
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// Save typing.
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typedef MachineInstrBundleIterator<MyUnbundledInstr> iterator;
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typedef MachineInstrBundleIterator<MyUnbundledInstr, true> reverse_iterator;
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typedef MachineInstrBundleIterator<const MyUnbundledInstr> const_iterator;
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typedef MachineInstrBundleIterator<const MyUnbundledInstr, true>
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const_reverse_iterator;
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// Convert to bundle iterators.
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auto begin = [&]() -> iterator { return L.begin(); };
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auto end = [&]() -> iterator { return L.end(); };
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auto rbegin = [&]() -> reverse_iterator { return L.rbegin(); };
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auto rend = [&]() -> reverse_iterator { return L.rend(); };
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auto cbegin = [&]() -> const_iterator { return CL.begin(); };
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auto cend = [&]() -> const_iterator { return CL.end(); };
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auto crbegin = [&]() -> const_reverse_iterator { return CL.rbegin(); };
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auto crend = [&]() -> const_reverse_iterator { return CL.rend(); };
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// Check conversion values.
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EXPECT_EQ(begin(), iterator(rend()));
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EXPECT_EQ(++begin(), iterator(++rbegin()));
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EXPECT_EQ(end(), iterator(rbegin()));
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EXPECT_EQ(rbegin(), reverse_iterator(end()));
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EXPECT_EQ(++rbegin(), reverse_iterator(++begin()));
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EXPECT_EQ(rend(), reverse_iterator(begin()));
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// Check const iterator constructors.
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EXPECT_EQ(cbegin(), const_iterator(rend()));
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EXPECT_EQ(cbegin(), const_iterator(crend()));
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EXPECT_EQ(crbegin(), const_reverse_iterator(end()));
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EXPECT_EQ(crbegin(), const_reverse_iterator(cend()));
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// Confirm lack of implicit conversions.
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static_assert(!std::is_convertible<iterator, reverse_iterator>::value,
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"unexpected implicit conversion");
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static_assert(!std::is_convertible<reverse_iterator, iterator>::value,
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"unexpected implicit conversion");
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static_assert(
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!std::is_convertible<const_iterator, const_reverse_iterator>::value,
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"unexpected implicit conversion");
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static_assert(
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!std::is_convertible<const_reverse_iterator, const_iterator>::value,
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"unexpected implicit conversion");
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}
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} // end namespace
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