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//===- llvm/unittest/DebugInfo/DWARFFormValueTest.cpp ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../lib/CodeGen/AsmPrinter/DIE.h"
#include "../lib/CodeGen/AsmPrinter/DIEHash.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(Data1, DIEHash) {
DIEHash Hash;
DIE Die(dwarf::DW_TAG_base_type);
DIEInteger Size(4);
Die.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Size);
uint64_t MD5Res = Hash.computeTypeSignature(&Die);
ASSERT_EQ(0x1AFE116E83701108ULL, MD5Res);
}
TEST(TrivialType, DIEHash) {
// A complete, but simple, type containing no members and defined on the first
// line of a file.
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger One(1);
Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
// Line and file number are ignored.
Unnamed.addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One);
Unnamed.addValue(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);
}
TEST(NamedType, DIEHash) {
// A complete named type containing no members and defined on the first line
// of a file.
DIE Foo(dwarf::DW_TAG_structure_type);
DIEInteger One(1);
DIEString FooStr(&One, "foo");
Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
Foo.addValue(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);
}
TEST(NamespacedType, DIEHash) {
// A complete named type containing no members and defined on the first line
// of a file.
DIE CU(dwarf::DW_TAG_compile_unit);
DIE *Space = new DIE(dwarf::DW_TAG_namespace);
DIEInteger One(1);
DIEString SpaceStr(&One, "space");
Space->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &SpaceStr);
// DW_AT_declaration is ignored.
Space->addValue(dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present, &One);
// sibling?
DIE *Foo = new DIE(dwarf::DW_TAG_structure_type);
DIEString FooStr(&One, "foo");
Foo->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
Foo->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
Space->addChild(Foo);
CU.addChild(Space);
uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
// The exact same hash GCC produces for this DIE.
ASSERT_EQ(0x7b80381fd17f1e33ULL, MD5Res);
}
TEST(TypeWithMember, DIEHash) {
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger Four(4);
Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four);
DIE *Member = new DIE(dwarf::DW_TAG_member);
DIEString MemberStr(&Four, "member");
Member->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemberStr);
DIEInteger Zero(0);
Member->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero);
Unnamed.addChild(Member);
DIE Int(dwarf::DW_TAG_base_type);
DIEString IntStr(&Four, "int");
Int.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &IntStr);
Int.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four);
DIEInteger Five(5);
Int.addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Five);
DIEEntry IntRef(&Int);
Member->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef);
uint64_t MD5Res = DIEHash().computeTypeSignature(&Unnamed);
ASSERT_EQ(0x5646aa436b7e07c6ULL, MD5Res);
}
TEST(ReusedType, DIEHash) {
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger Eight(8);
Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight);
DIE *Mem1 = new DIE(dwarf::DW_TAG_member);
DIEInteger Four(4);
DIEString Mem1Str(&Four, "mem1");
Mem1->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &Mem1Str);
DIEInteger Zero(0);
Mem1->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero);
Unnamed.addChild(Mem1);
DIE *Mem2 = new DIE(dwarf::DW_TAG_member);
DIEString Mem2Str(&Four, "mem2");
Mem2->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &Mem2Str);
Mem2->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Four);
Unnamed.addChild(Mem2);
DIE Int(dwarf::DW_TAG_base_type);
DIEString IntStr(&Four, "int");
Int.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &IntStr);
Int.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four);
DIEInteger Five(5);
Int.addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Five);
DIEEntry IntRef(&Int);
Mem1->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef);
Mem2->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef);
uint64_t MD5Res = DIEHash().computeTypeSignature(&Unnamed);
ASSERT_EQ(0x3a7dc3ed7b76b2f8ULL, MD5Res);
}
TEST(RecursiveType, DIEHash) {
DIE Foo(dwarf::DW_TAG_structure_type);
DIEInteger One(1);
Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
DIEString FooStr(&One, "foo");
Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
DIE *Mem = new DIE(dwarf::DW_TAG_member);
DIEString MemStr(&One, "mem");
Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr);
DIEEntry FooRef(&Foo);
Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRef);
// DW_AT_external and DW_AT_declaration are ignored anyway, so skip them.
Foo.addChild(Mem);
uint64_t MD5Res = DIEHash().computeTypeSignature(&Foo);
ASSERT_EQ(0x73d8b25aef227b06ULL, MD5Res);
}
}
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