llvm/unittests/CodeGen/DwarfStringPoolEntryRefTest.cpp

   1 //===- llvm/unittest/CodeGen/DwarfStringPoolEntryRefTest.cpp --------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/CodeGen/DwarfStringPoolEntry.h"
  10 #include "llvm/Support/Allocator.h"
  11 #include "llvm/Testing/Support/Error.h"
  12
  13 #include "gmock/gmock.h"
  14 #include "gtest/gtest.h"
  15 #include <string>
  16
  17 using namespace llvm;
  18
  19 TEST(DwarfStringPoolEntryRefTest, TestFullEntry) {
  20   BumpPtrAllocator Allocator;
  21   StringMapEntry<DwarfStringPoolEntry> *StringEntry1 =
  22       StringMapEntry<DwarfStringPoolEntry>::create(
  23           "Key1", Allocator, DwarfStringPoolEntry{nullptr, 0, 0});
  24
  25   EXPECT_TRUE(StringEntry1->getKey() == "Key1");
  26   EXPECT_TRUE(StringEntry1->second.Symbol == nullptr);
  27   EXPECT_TRUE(StringEntry1->second.Offset == 0);
  28   EXPECT_TRUE(StringEntry1->second.Index == 0);
  29
  30   DwarfStringPoolEntryRef Ref1(*StringEntry1);
  31   EXPECT_TRUE(Ref1.getString() == "Key1");
  32   EXPECT_TRUE(Ref1.getOffset() == 0);
  33   EXPECT_TRUE(Ref1.getIndex() == 0);
  34
  35   DwarfStringPoolEntryRef Ref2(*StringEntry1);
  36   EXPECT_TRUE(Ref2.getString() == "Key1");
  37   EXPECT_TRUE(Ref2.getOffset() == 0);
  38   EXPECT_TRUE(Ref2.getIndex() == 0);
  39   EXPECT_TRUE(Ref1 == Ref2);
  40   EXPECT_FALSE(Ref1 != Ref2);
  41
  42   StringMapEntry<DwarfStringPoolEntry> *StringEntry2 =
  43       StringMapEntry<DwarfStringPoolEntry>::create(
  44           "Key2", Allocator, DwarfStringPoolEntry{nullptr, 0x1000, 1});
  45   EXPECT_TRUE(StringEntry2->getKey() == "Key2");
  46   EXPECT_TRUE(StringEntry2->second.Symbol == nullptr);
  47   EXPECT_TRUE(StringEntry2->second.Offset == 0x1000);
  48   EXPECT_TRUE(StringEntry2->second.Index == 1);
  49
  50   DwarfStringPoolEntryRef Ref3(*StringEntry2);
  51   EXPECT_TRUE(Ref3.getString() == "Key2");
  52   EXPECT_TRUE(Ref3.getOffset() == 0x1000);
  53   EXPECT_TRUE(Ref3.getIndex() == 1);
  54   EXPECT_TRUE(Ref1 != Ref3);
  55 }
  56
  57 bool isEntryEqual(const DwarfStringPoolEntry &LHS,
  58                   const DwarfStringPoolEntry &RHS) {
  59   return LHS.Symbol == RHS.Symbol && LHS.Offset == RHS.Offset &&
  60          LHS.Index == RHS.Index;
  61 }
  62
  63 TEST(DwarfStringPoolEntryRefTest, TestShortEntry) {
  64   DwarfStringPoolEntryWithExtString DwarfEntry1 = {{nullptr, 0, 0}, "Key1"};
  65
  66   DwarfStringPoolEntryRef Ref1(DwarfEntry1);
  67   EXPECT_TRUE(Ref1.getString() == "Key1");
  68   EXPECT_TRUE(Ref1.getOffset() == 0);
  69   EXPECT_TRUE(Ref1.getIndex() == 0);
  70   EXPECT_TRUE(isEntryEqual(Ref1.getEntry(), DwarfEntry1));
  71
  72   DwarfStringPoolEntryRef Ref2(DwarfEntry1);
  73   EXPECT_TRUE(Ref2.getString() == "Key1");
  74   EXPECT_TRUE(Ref2.getOffset() == 0);
  75   EXPECT_TRUE(isEntryEqual(Ref2.getEntry(), DwarfEntry1));
  76   EXPECT_TRUE(Ref1 == Ref2);
  77   EXPECT_FALSE(Ref1 != Ref2);
  78
  79   DwarfStringPoolEntryWithExtString DwarfEntry2 = {{nullptr, 0x1000, 1},
  80                                                    "Key2"};
  81
  82   DwarfStringPoolEntryRef Ref3(DwarfEntry2);
  83   EXPECT_TRUE(Ref3.getString() == "Key2");
  84   EXPECT_TRUE(Ref3.getOffset() == 0x1000);
  85   EXPECT_TRUE(Ref3.getIndex() == 1);
  86   EXPECT_TRUE(isEntryEqual(Ref3.getEntry(), DwarfEntry2));
  87   EXPECT_TRUE(Ref1 != Ref3);
  88 }
  89
  90 TEST(DwarfStringPoolEntryRefTest, CompareFullAndShort) {
  91   BumpPtrAllocator Allocator;
  92
  93   DwarfStringPoolEntryWithExtString DwarfEntry1 = {{nullptr, 0, 0}, "Key1"};
  94   DwarfStringPoolEntryRef Ref1(DwarfEntry1);
  95
  96   StringMapEntry<DwarfStringPoolEntry> *StringEntry2 =
  97       StringMapEntry<DwarfStringPoolEntry>::create(
  98           "Key1", Allocator, DwarfStringPoolEntry{nullptr, 0, 0});
  99   DwarfStringPoolEntryRef Ref2(*StringEntry2);
 100
 101   EXPECT_FALSE(Ref1 == Ref2);
 102 }