unittests/IR/DebugInfoTest.cpp

   1 //===- llvm/unittest/IR/DebugInfo.cpp - DebugInfo tests -------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/IR/DebugInfoMetadata.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14
  15 namespace {
  16
  17 TEST(DINodeTest, getFlag) {
  18   // Some valid flags.
  19   EXPECT_EQ(DINode::FlagPublic, DINode::getFlag("DIFlagPublic"));
  20   EXPECT_EQ(DINode::FlagProtected, DINode::getFlag("DIFlagProtected"));
  21   EXPECT_EQ(DINode::FlagPrivate, DINode::getFlag("DIFlagPrivate"));
  22   EXPECT_EQ(DINode::FlagVector, DINode::getFlag("DIFlagVector"));
  23   EXPECT_EQ(DINode::FlagRValueReference,
  24             DINode::getFlag("DIFlagRValueReference"));
  25
  26   // FlagAccessibility shouldn't work.
  27   EXPECT_EQ(0u, DINode::getFlag("DIFlagAccessibility"));
  28
  29   // Some other invalid strings.
  30   EXPECT_EQ(0u, DINode::getFlag("FlagVector"));
  31   EXPECT_EQ(0u, DINode::getFlag("Vector"));
  32   EXPECT_EQ(0u, DINode::getFlag("other things"));
  33   EXPECT_EQ(0u, DINode::getFlag("DIFlagOther"));
  34 }
  35
  36 TEST(DINodeTest, getFlagString) {
  37   // Some valid flags.
  38   EXPECT_EQ(StringRef("DIFlagPublic"),
  39             DINode::getFlagString(DINode::FlagPublic));
  40   EXPECT_EQ(StringRef("DIFlagProtected"),
  41             DINode::getFlagString(DINode::FlagProtected));
  42   EXPECT_EQ(StringRef("DIFlagPrivate"),
  43             DINode::getFlagString(DINode::FlagPrivate));
  44   EXPECT_EQ(StringRef("DIFlagVector"),
  45             DINode::getFlagString(DINode::FlagVector));
  46   EXPECT_EQ(StringRef("DIFlagRValueReference"),
  47             DINode::getFlagString(DINode::FlagRValueReference));
  48
  49   // FlagAccessibility actually equals FlagPublic.
  50   EXPECT_EQ(StringRef("DIFlagPublic"),
  51             DINode::getFlagString(DINode::FlagAccessibility));
  52
  53   // Some other invalid flags.
  54   EXPECT_EQ(StringRef(),
  55             DINode::getFlagString(DINode::FlagPublic | DINode::FlagVector));
  56   EXPECT_EQ(StringRef(), DINode::getFlagString(DINode::FlagFwdDecl |
  57                                                DINode::FlagArtificial));
  58   EXPECT_EQ(StringRef(), DINode::getFlagString(0xffff));
  59 }
  60
  61 TEST(DINodeTest, splitFlags) {
  62 // Some valid flags.
  63 #define CHECK_SPLIT(FLAGS, VECTOR, REMAINDER)                                  \
  64   {                                                                            \
  65     SmallVector<unsigned, 8> V;                                                \
  66     EXPECT_EQ(REMAINDER, DINode::splitFlags(FLAGS, V));                        \
  67     EXPECT_TRUE(makeArrayRef(V).equals(VECTOR));                               \
  68   }
  69   CHECK_SPLIT(DINode::FlagPublic, {DINode::FlagPublic}, 0u);
  70   CHECK_SPLIT(DINode::FlagProtected, {DINode::FlagProtected}, 0u);
  71   CHECK_SPLIT(DINode::FlagPrivate, {DINode::FlagPrivate}, 0u);
  72   CHECK_SPLIT(DINode::FlagVector, {DINode::FlagVector}, 0u);
  73   CHECK_SPLIT(DINode::FlagRValueReference, {DINode::FlagRValueReference}, 0u);
  74   unsigned Flags[] = {DINode::FlagFwdDecl, DINode::FlagVector};
  75   CHECK_SPLIT(DINode::FlagFwdDecl | DINode::FlagVector, Flags, 0u);
  76   CHECK_SPLIT(0x100000u, {}, 0x100000u);
  77   CHECK_SPLIT(0x100000u | DINode::FlagVector, {DINode::FlagVector}, 0x100000u);
  78 #undef CHECK_SPLIT
  79 }
  80
  81 } // end namespace