cross-project-tests/debuginfo-tests/llvm-prettyprinters/gdb/llvm-support.cpp

   1 #include "llvm/ADT/ArrayRef.h"
   2 #include "llvm/ADT/DenseMap.h"
   3 #include "llvm/ADT/PointerIntPair.h"
   4 #include "llvm/ADT/PointerUnion.h"
   5 #include "llvm/ADT/SmallString.h"
   6 #include "llvm/ADT/SmallVector.h"
   7 #include "llvm/ADT/StringMap.h"
   8 #include "llvm/ADT/Twine.h"
   9 #include "llvm/ADT/ilist.h"
  10 #include "llvm/Support/Error.h"
  11 #include <optional>
  12
  13 int Array[] = {1, 2, 3};
  14 auto IntPtr = reinterpret_cast<int *>(0xabc);
  15
  16 llvm::ArrayRef<int> ArrayRef(Array);
  17 llvm::MutableArrayRef<int> MutableArrayRef(Array);
  18 llvm::DenseMap<int, int> DenseMap = {{4, 5}, {6, 7}};
  19 llvm::StringMap<int> StringMap = {{"foo", 123}, {"bar", 456}};
  20 llvm::Expected<int> ExpectedValue(8);
  21 llvm::Expected<int> ExpectedError(llvm::createStringError(""));
  22 llvm::SmallVector<int, 5> SmallVector = {10, 11, 12};
  23 llvm::SmallString<5> SmallString("foo");
  24 llvm::StringRef StringRef = "bar";
  25 // Should test std::string in Twine too, but it's currently broken because I
  26 // don't know how to add 'str' and 'gdb.LazyString' (can't figure out any way to
  27 // string-ify LazyString).
  28 std::string String = "foo";
  29 llvm::Twine TempTwine = llvm::Twine(String) + StringRef;
  30 llvm::Twine Twine = TempTwine + "baz";
  31 llvm::PointerIntPair<int *, 1> PointerIntPair(IntPtr, 1);
  32
  33 struct alignas(8) Z {};
  34 llvm::PointerUnion<Z *, int *> PointerUnion(IntPtr);
  35
  36 // No members which instantiate PointerUnionUIntTraits<Z *> (e.g. get<T *>())
  37 // are called, and this instance will therefore be raw-printed.
  38 llvm::PointerUnion<Z *, float *> RawPrintingPointerUnion(nullptr);
  39
  40 using IlistTag = llvm::ilist_tag<struct A>;
  41 using SimpleIlistTag = llvm::ilist_tag<struct B>;
  42 struct IlistNode : llvm::ilist_node<IlistNode, IlistTag>,
  43                    llvm::ilist_node<IlistNode, SimpleIlistTag> {
  44   int Value;
  45 };
  46 auto Ilist = [] {
  47   llvm::ilist<IlistNode, IlistTag> Result;
  48   for (int I : {13, 14, 15}) {
  49     Result.push_back(new IlistNode);
  50     Result.back().Value = I;
  51   }
  52   return Result;
  53 }();
  54 auto SimpleIlist = []() {
  55   llvm::simple_ilist<IlistNode, SimpleIlistTag> Result;
  56   for (auto &Node : Ilist)
  57     Result.push_front(Node);
  58   return Result;
  59 }();
  60
  61 int main() {
  62   std::uintptr_t result = 0;
  63   auto dont_strip = [&](const auto &val) {
  64     result += reinterpret_cast<std::uintptr_t>(&val);
  65   };
  66   dont_strip(ArrayRef);
  67   dont_strip(MutableArrayRef);
  68   dont_strip(ExpectedValue);
  69   dont_strip(ExpectedError);
  70   return result; // Non-zero return value is OK.
  71 }