//
//===----------------------------------------------------------------------===//
-#include "../lib/CodeGen/AsmPrinter/DIE.h"
+#include "llvm/CodeGen/DIE.h"
#include "../lib/CodeGen/AsmPrinter/DIEHash.h"
-#include "llvm/Support/Dwarf.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/CodeGen/DwarfStringPoolEntry.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
#include "gtest/gtest.h"
+using namespace llvm;
+
namespace {
-using namespace llvm;
-TEST(DIEHashData1Test, DIEHash) {
+// Test fixture
+class DIEHashTest : public testing::Test {
+public:
+ BumpPtrAllocator Alloc;
+
+private:
+ StringMap<DwarfStringPoolEntry> Pool;
+
+public:
+ DIEString getString(StringRef S) {
+ DwarfStringPoolEntry Entry = {nullptr, 1, 1};
+ return DIEString(
+ DwarfStringPoolEntryRef(*Pool.insert(std::make_pair(S, Entry)).first));
+ }
+};
+
+TEST_F(DIEHashTest, Data1) {
DIEHash Hash;
- DIE *Die = new DIE(dwarf::DW_TAG_base_type);
- DIEValue *Size = new DIEInteger(4);
- Die->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Size);
+ DIE &Die = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
+ DIEInteger Size(4);
+ Die.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Size);
uint64_t MD5Res = Hash.computeTypeSignature(Die);
- ASSERT_TRUE(MD5Res == 0x540e9ff30ade3e4aULL);
- delete Die;
+ ASSERT_EQ(0x1AFE116E83701108ULL, MD5Res);
+}
+
+// struct {};
+TEST_F(DIEHashTest, TrivialType) {
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ // Line and file number are ignored.
+ Unnamed.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0x715305ce6cfd9ad1ULL, MD5Res);
+}
+
+// struct foo { };
+TEST_F(DIEHashTest, NamedType) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0xd566dbd2ca5265ffULL, MD5Res);
+}
+
+// namespace space { struct foo { }; }
+TEST_F(DIEHashTest, NamespacedType) {
+ DIE &CU = *DIE::get(Alloc, dwarf::DW_TAG_compile_unit);
+
+ auto Space = DIE::get(Alloc, dwarf::DW_TAG_namespace);
+ DIEInteger One(1);
+ DIEString SpaceStr = getString("space");
+ Space->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, SpaceStr);
+ // DW_AT_declaration is ignored.
+ Space->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+ // sibling?
+
+ auto Foo = DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEString FooStr = getString("foo");
+ Foo->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+ Foo->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ DIE &N = *Foo;
+ Space->addChild(std::move(Foo));
+ CU.addChild(std::move(Space));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(N);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0x7b80381fd17f1e33ULL, MD5Res);
+}
+
+// struct { int member; };
+TEST_F(DIEHashTest, TypeWithMember) {
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Four(4);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
+
+ DIE &Int = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
+ DIEString IntStr = getString("int");
+ Int.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, IntStr);
+ Int.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
+ DIEInteger Five(5);
+ Int.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
+
+ DIEEntry IntRef(Int);
+
+ auto Member = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemberStr = getString("member");
+ Member->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemberStr);
+ DIEInteger Zero(0);
+ Member->addValue(Alloc, dwarf::DW_AT_data_member_location,
+ dwarf::DW_FORM_data1, Zero);
+ Member->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
+
+ Unnamed.addChild(std::move(Member));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
+
+ ASSERT_EQ(0x5646aa436b7e07c6ULL, MD5Res);
+}
+
+// struct foo { int mem1, mem2; };
+TEST_F(DIEHashTest, ReusedType) {
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Eight(8);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+
+ DIEInteger Four(4);
+ DIE &Int = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
+ DIEString IntStr = getString("int");
+ Int.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, IntStr);
+ Int.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
+ DIEInteger Five(5);
+ Int.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
+
+ DIEEntry IntRef(Int);
+
+ auto Mem1 = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString Mem1Str = getString("mem1");
+ Mem1->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, Mem1Str);
+ DIEInteger Zero(0);
+ Mem1->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+ Mem1->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
+
+ Unnamed.addChild(std::move(Mem1));
+
+ auto Mem2 = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString Mem2Str = getString("mem2");
+ Mem2->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, Mem2Str);
+ Mem2->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Four);
+ Mem2->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
+
+ Unnamed.addChild(std::move(Mem2));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
+
+ ASSERT_EQ(0x3a7dc3ed7b76b2f8ULL, MD5Res);
+}
+
+// struct foo { static foo f; };
+TEST_F(DIEHashTest, RecursiveType) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemStr = getString("mem");
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ DIEEntry FooRef(Foo);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRef);
+ // DW_AT_external and DW_AT_declaration are ignored anyway, so skip them.
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0x73d8b25aef227b06ULL, MD5Res);
+}
+
+// struct foo { foo *mem; };
+TEST_F(DIEHashTest, Pointer) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Eight(8);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemStr = getString("mem");
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ DIEInteger Zero(0);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+
+ DIE &FooPtr = *DIE::get(Alloc, dwarf::DW_TAG_pointer_type);
+ FooPtr.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEEntry FooRef(Foo);
+ FooPtr.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRef);
+
+ DIEEntry FooPtrRef(FooPtr);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooPtrRef);
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0x74ea73862e8708d2ULL, MD5Res);
+}
+
+// struct foo { foo &mem; };
+TEST_F(DIEHashTest, Reference) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Eight(8);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemStr = getString("mem");
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ DIEInteger Zero(0);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+
+ DIE &FooRef = *DIE::get(Alloc, dwarf::DW_TAG_reference_type);
+ FooRef.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEEntry FooEntry(Foo);
+ FooRef.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
+
+ DIE &FooRefConst = *DIE::get(Alloc, dwarf::DW_TAG_const_type);
+ DIEEntry FooRefRef(FooRef);
+ FooRefConst.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ FooRefRef);
+
+ DIEEntry FooRefConstRef(FooRefConst);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRefConstRef);
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0xa0b15f467ad4525bULL, MD5Res);
+}
+
+// struct foo { foo &&mem; };
+TEST_F(DIEHashTest, RValueReference) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Eight(8);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemStr = getString("mem");
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ DIEInteger Zero(0);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+
+ DIE &FooRef = *DIE::get(Alloc, dwarf::DW_TAG_rvalue_reference_type);
+ FooRef.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEEntry FooEntry(Foo);
+ FooRef.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
+
+ DIE &FooRefConst = *DIE::get(Alloc, dwarf::DW_TAG_const_type);
+ DIEEntry FooRefRef(FooRef);
+ FooRefConst.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ FooRefRef);
+
+ DIEEntry FooRefConstRef(FooRefConst);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRefConstRef);
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0xad211c8c3b31e57ULL, MD5Res);
+}
+
+// struct foo { foo foo::*mem; };
+TEST_F(DIEHashTest, PtrToMember) {
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger Eight(8);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ DIEString FooStr = getString("foo");
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString MemStr = getString("mem");
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ DIEInteger Zero(0);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+
+ DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
+ DIEEntry FooEntry(Foo);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4,
+ FooEntry);
+
+ DIEEntry PtrToFooMemRef(PtrToFooMem);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PtrToFooMemRef);
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0x852e0c9ff7c04ebULL, MD5Res);
+}
+
+// Check that the hash for a pointer-to-member matches regardless of whether the
+// pointed-to type is a declaration or a definition.
+//
+// struct bar; // { };
+// struct foo { bar foo::*mem; };
+TEST_F(DIEHashTest, PtrToMemberDeclDefMatch) {
+ DIEInteger Zero(0);
+ DIEInteger One(1);
+ DIEInteger Eight(8);
+ DIEString FooStr = getString("foo");
+ DIEString BarStr = getString("bar");
+ DIEString MemStr = getString("mem");
+ uint64_t MD5ResDecl;
+ {
+ DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
+ Bar.addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
+ dwarf::DW_FORM_data1, Zero);
+
+ DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
+ DIEEntry BarEntry(Bar);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ BarEntry);
+ DIEEntry FooEntry(Foo);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
+ dwarf::DW_FORM_ref4, FooEntry);
+
+ DIEEntry PtrToFooMemRef(PtrToFooMem);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ PtrToFooMemRef);
+
+ Foo.addChild(std::move(Mem));
+
+ MD5ResDecl = DIEHash().computeTypeSignature(Foo);
+ }
+ uint64_t MD5ResDef;
+ {
+ DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
+ Bar.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
+ dwarf::DW_FORM_data1, Zero);
+
+ DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
+ DIEEntry BarEntry(Bar);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ BarEntry);
+ DIEEntry FooEntry(Foo);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
+ dwarf::DW_FORM_ref4, FooEntry);
+
+ DIEEntry PtrToFooMemRef(PtrToFooMem);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ PtrToFooMemRef);
+
+ Foo.addChild(std::move(Mem));
+
+ MD5ResDef = DIEHash().computeTypeSignature(Foo);
+ }
+ ASSERT_EQ(MD5ResDef, MD5ResDecl);
+}
+
+// Check that the hash for a pointer-to-member matches regardless of whether the
+// pointed-to type is a declaration or a definition.
+//
+// struct bar; // { };
+// struct foo { bar bar::*mem; };
+TEST_F(DIEHashTest, PtrToMemberDeclDefMisMatch) {
+ DIEInteger Zero(0);
+ DIEInteger One(1);
+ DIEInteger Eight(8);
+ DIEString FooStr = getString("foo");
+ DIEString BarStr = getString("bar");
+ DIEString MemStr = getString("mem");
+ uint64_t MD5ResDecl;
+ {
+ DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
+ Bar.addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
+ dwarf::DW_FORM_data1, Zero);
+
+ DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
+ DIEEntry BarEntry(Bar);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ BarEntry);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
+ dwarf::DW_FORM_ref4, BarEntry);
+
+ DIEEntry PtrToFooMemRef(PtrToFooMem);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ PtrToFooMemRef);
+
+ Foo.addChild(std::move(Mem));
+
+ MD5ResDecl = DIEHash().computeTypeSignature(Foo);
+ }
+ uint64_t MD5ResDef;
+ {
+ DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
+ Bar.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
+ dwarf::DW_FORM_data1, Zero);
+
+ DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
+ DIEEntry BarEntry(Bar);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ BarEntry);
+ PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
+ dwarf::DW_FORM_ref4, BarEntry);
+
+ DIEEntry PtrToFooMemRef(PtrToFooMem);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ PtrToFooMemRef);
+
+ Foo.addChild(std::move(Mem));
+
+ MD5ResDef = DIEHash().computeTypeSignature(Foo);
+ }
+ // FIXME: This seems to be a bug in the DWARF type hashing specification that
+ // only uses the brief name hashing for types referenced via DW_AT_type. In
+ // this case the type is referenced via DW_AT_containing_type and full hashing
+ // causes a hash to differ when the containing type is a declaration in one TU
+ // and a definition in another.
+ ASSERT_NE(MD5ResDef, MD5ResDecl);
+}
+
+// struct { } a;
+// struct foo { decltype(a) mem; };
+TEST_F(DIEHashTest, RefUnnamedType) {
+ DIEInteger Zero(0);
+ DIEInteger One(1);
+ DIEInteger Eight(8);
+ DIEString FooStr = getString("foo");
+ DIEString MemStr = getString("mem");
+
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
+ Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+
+ auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
+ Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
+ Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
+ Zero);
+
+ DIE &UnnamedPtr = *DIE::get(Alloc, dwarf::DW_TAG_pointer_type);
+ UnnamedPtr.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1,
+ Eight);
+ DIEEntry UnnamedRef(Unnamed);
+ UnnamedPtr.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
+ UnnamedRef);
+
+ DIEEntry UnnamedPtrRef(UnnamedPtr);
+ Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, UnnamedPtrRef);
+
+ Foo.addChild(std::move(Mem));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
+
+ ASSERT_EQ(0x954e026f01c02529ULL, MD5Res);
+}
+
+// struct { struct foo { }; };
+TEST_F(DIEHashTest, NestedType) {
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ auto Foo = DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEString FooStr = getString("foo");
+ Foo->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
+ Foo->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ Unnamed.addChild(std::move(Foo));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0xde8a3b7b43807f4aULL, MD5Res);
+}
+
+// struct { static void func(); };
+TEST_F(DIEHashTest, MemberFunc) {
+ DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+
+ auto Func = DIE::get(Alloc, dwarf::DW_TAG_subprogram);
+ DIEString FuncStr = getString("func");
+ Func->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FuncStr);
+
+ Unnamed.addChild(std::move(Func));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0xd36a1b6dfb604ba0ULL, MD5Res);
+}
+
+// struct A {
+// static void func();
+// };
+TEST_F(DIEHashTest, MemberFuncFlag) {
+ DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ DIEString AStr = getString("A");
+ A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
+ A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
+
+ auto Func = DIE::get(Alloc, dwarf::DW_TAG_subprogram);
+ DIEString FuncStr = getString("func");
+ DIEString FuncLinkage = getString("_ZN1A4funcEv");
+ DIEInteger Two(2);
+ Func->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present,
+ One);
+ Func->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FuncStr);
+ Func->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ Func->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
+ Func->addValue(Alloc, dwarf::DW_AT_linkage_name, dwarf::DW_FORM_strp,
+ FuncLinkage);
+ Func->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+
+ A.addChild(std::move(Func));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(A);
+
+ // The exact same hash GCC produces for this DIE.
+ ASSERT_EQ(0x8f78211ddce3df10ULL, MD5Res);
+}
+
+// Derived from:
+// struct A {
+// const static int PI = -3;
+// };
+// A a;
+TEST_F(DIEHashTest, MemberSdata) {
+ DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ DIEString AStr = getString("A");
+ A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
+ A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
+
+ DIEInteger Four(4);
+ DIEInteger Five(5);
+ DIEString FStr = getString("int");
+ DIE &IntTyDIE = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
+ IntTyDIE.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
+ IntTyDIE.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
+ IntTyDIE.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FStr);
+
+ DIEEntry IntTy(IntTyDIE);
+ auto PITyDIE = DIE::get(Alloc, dwarf::DW_TAG_const_type);
+ PITyDIE->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntTy);
+
+ DIEEntry PITy(*PITyDIE);
+ auto PI = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString PIStr = getString("PI");
+ DIEInteger Two(2);
+ DIEInteger NegThree(-3);
+ PI->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, PIStr);
+ PI->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ PI->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
+ PI->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PITy);
+ PI->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present, One);
+ PI->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+ PI->addValue(Alloc, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, NegThree);
+
+ A.addChild(std::move(PI));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(A);
+ ASSERT_EQ(0x9a216000dd3788a7ULL, MD5Res);
+}
+
+// Derived from:
+// struct A {
+// const static float PI = 3.14;
+// };
+// A a;
+TEST_F(DIEHashTest, MemberBlock) {
+ DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
+ DIEInteger One(1);
+ DIEString AStr = getString("A");
+ A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
+ A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
+
+ DIEInteger Four(4);
+ DIEString FStr = getString("float");
+ auto FloatTyDIE = DIE::get(Alloc, dwarf::DW_TAG_base_type);
+ FloatTyDIE->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1,
+ Four);
+ FloatTyDIE->addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
+ Four);
+ FloatTyDIE->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FStr);
+ DIEEntry FloatTy(*FloatTyDIE);
+ auto PITyDIE = DIE::get(Alloc, dwarf::DW_TAG_const_type);
+ PITyDIE->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FloatTy);
+
+ DIEEntry PITy(*PITyDIE);
+ auto PI = DIE::get(Alloc, dwarf::DW_TAG_member);
+ DIEString PIStr = getString("PI");
+ DIEInteger Two(2);
+ PI->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, PIStr);
+ PI->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
+ PI->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
+ PI->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PITy);
+ PI->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present, One);
+ PI->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
+ One);
+
+ DIEBlock PIBlock;
+ DIEInteger Blk1(0xc3);
+ DIEInteger Blk2(0xf5);
+ DIEInteger Blk3(0x48);
+ DIEInteger Blk4(0x40);
+
+ PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk1);
+ PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk2);
+ PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk3);
+ PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk4);
+
+ PI->addValue(Alloc, dwarf::DW_AT_const_value, dwarf::DW_FORM_block1,
+ &PIBlock);
+
+ A.addChild(std::move(PI));
+
+ uint64_t MD5Res = DIEHash().computeTypeSignature(A);
+ ASSERT_EQ(0x493af53ad3d3f651ULL, MD5Res);
}
}
projects / oota-llvm.git / blobdiff