llvm-project/llvm/unittests/CodeGen/MachineInstrBundleIteratorT...

134 lines
4.6 KiB
C++

//===- MachineInstrBundleIteratorTest.cpp ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ilist_node.h"
#include "llvm/CodeGen/MachineInstrBundleIterator.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
struct MyBundledInstr
: public ilist_node<MyBundledInstr, ilist_sentinel_tracking<true>> {
bool isBundledWithPred() const { return true; }
bool isBundledWithSucc() const { return true; }
};
typedef MachineInstrBundleIterator<MyBundledInstr> bundled_iterator;
typedef MachineInstrBundleIterator<const MyBundledInstr> const_bundled_iterator;
typedef MachineInstrBundleIterator<MyBundledInstr, true>
reverse_bundled_iterator;
typedef MachineInstrBundleIterator<const MyBundledInstr, true>
const_reverse_bundled_iterator;
#ifdef GTEST_HAS_DEATH_TEST
#ifndef NDEBUG
TEST(MachineInstrBundleIteratorTest, CheckForBundles) {
MyBundledInstr MBI;
auto I = MBI.getIterator();
auto RI = I.getReverse();
// Confirm that MBI is always considered bundled.
EXPECT_TRUE(MBI.isBundledWithPred());
EXPECT_TRUE(MBI.isBundledWithSucc());
// Confirm that iterators check in their constructor for bundled iterators.
EXPECT_DEATH((void)static_cast<bundled_iterator>(I),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<bundled_iterator>(MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<bundled_iterator>(&MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_bundled_iterator>(I),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_bundled_iterator>(MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_bundled_iterator>(&MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(RI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<reverse_bundled_iterator>(&MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(RI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(MBI),
"not legal to initialize");
EXPECT_DEATH((void)static_cast<const_reverse_bundled_iterator>(&MBI),
"not legal to initialize");
}
#endif
#endif
TEST(MachineInstrBundleIteratorTest, CompareToBundledMI) {
MyBundledInstr MBI;
const MyBundledInstr &CMBI = MBI;
bundled_iterator I;
const_bundled_iterator CI;
// Confirm that MBI is always considered bundled.
EXPECT_TRUE(MBI.isBundledWithPred());
EXPECT_TRUE(MBI.isBundledWithSucc());
// These invocations will crash when !NDEBUG if a conversion is taking place.
// These checks confirm that comparison operators don't use any conversion
// operators.
ASSERT_FALSE(MBI == I);
ASSERT_FALSE(&MBI == I);
ASSERT_FALSE(CMBI == I);
ASSERT_FALSE(&CMBI == I);
ASSERT_FALSE(I == MBI);
ASSERT_FALSE(I == &MBI);
ASSERT_FALSE(I == CMBI);
ASSERT_FALSE(I == &CMBI);
ASSERT_FALSE(MBI == CI);
ASSERT_FALSE(&MBI == CI);
ASSERT_FALSE(CMBI == CI);
ASSERT_FALSE(&CMBI == CI);
ASSERT_FALSE(CI == MBI);
ASSERT_FALSE(CI == &MBI);
ASSERT_FALSE(CI == CMBI);
ASSERT_FALSE(CI == &CMBI);
ASSERT_FALSE(MBI.getIterator() == I);
ASSERT_FALSE(CMBI.getIterator() == I);
ASSERT_FALSE(I == MBI.getIterator());
ASSERT_FALSE(I == CMBI.getIterator());
ASSERT_FALSE(MBI.getIterator() == CI);
ASSERT_FALSE(CMBI.getIterator() == CI);
ASSERT_FALSE(CI == MBI.getIterator());
ASSERT_FALSE(CI == CMBI.getIterator());
ASSERT_TRUE(MBI != I);
ASSERT_TRUE(&MBI != I);
ASSERT_TRUE(CMBI != I);
ASSERT_TRUE(&CMBI != I);
ASSERT_TRUE(I != MBI);
ASSERT_TRUE(I != &MBI);
ASSERT_TRUE(I != CMBI);
ASSERT_TRUE(I != &CMBI);
ASSERT_TRUE(MBI != CI);
ASSERT_TRUE(&MBI != CI);
ASSERT_TRUE(CMBI != CI);
ASSERT_TRUE(&CMBI != CI);
ASSERT_TRUE(CI != MBI);
ASSERT_TRUE(CI != &MBI);
ASSERT_TRUE(CI != CMBI);
ASSERT_TRUE(CI != &CMBI);
ASSERT_TRUE(MBI.getIterator() != I);
ASSERT_TRUE(CMBI.getIterator() != I);
ASSERT_TRUE(I != MBI.getIterator());
ASSERT_TRUE(I != CMBI.getIterator());
ASSERT_TRUE(MBI.getIterator() != CI);
ASSERT_TRUE(CMBI.getIterator() != CI);
ASSERT_TRUE(CI != MBI.getIterator());
ASSERT_TRUE(CI != CMBI.getIterator());
}
} // end namespace