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DWARF type hashing: begin implementing Step 5, summary hashing in declarable contexts

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There are several other tag types that need similar handling but to
ensure test coverage they'll be coming incrementally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193126 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2013-10-21 22:36:50 +00:00
parent 65d60c8468
commit f1545a2197
3 changed files with 74 additions and 13 deletions
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41
unittests/CodeGen/DIEHashTest.cpp
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@ -26,9 +26,8 @@ TEST(DIEHashTest, Data1) {
ASSERT_EQ(0x1AFE116E83701108ULL, MD5Res);
}
// struct {};
TEST(DIEHashTest, TrivialType) {
// 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);
@ -42,9 +41,8 @@ TEST(DIEHashTest, TrivialType) {
ASSERT_EQ(0x715305ce6cfd9ad1ULL, MD5Res);
}
// struct foo { };
TEST(DIEHashTest, NamedType) {
// 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");
@ -57,9 +55,8 @@ TEST(DIEHashTest, NamedType) {
ASSERT_EQ(0xd566dbd2ca5265ffULL, MD5Res);
}
// namespace space { struct foo { }; }
TEST(DIEHashTest, NamespacedType) {
// 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);
@ -84,6 +81,7 @@ TEST(DIEHashTest, NamespacedType) {
ASSERT_EQ(0x7b80381fd17f1e33ULL, MD5Res);
}
// struct { int member; };
TEST(DIEHashTest, TypeWithMember) {
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger Four(4);
@ -112,6 +110,7 @@ TEST(DIEHashTest, TypeWithMember) {
ASSERT_EQ(0x5646aa436b7e07c6ULL, MD5Res);
}
// struct foo { int mem1, mem2; };
TEST(DIEHashTest, ReusedType) {
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger Eight(8);
@ -149,6 +148,7 @@ TEST(DIEHashTest, ReusedType) {
ASSERT_EQ(0x3a7dc3ed7b76b2f8ULL, MD5Res);
}
// struct foo { static foo f; };
TEST(DIEHashTest, RecursiveType) {
DIE Foo(dwarf::DW_TAG_structure_type);
DIEInteger One(1);
@ -169,4 +169,33 @@ TEST(DIEHashTest, RecursiveType) {
ASSERT_EQ(0x73d8b25aef227b06ULL, MD5Res);
}
// struct foo { foo *mem; };
TEST(DIEHashTest, Pointer) {
DIE Foo(dwarf::DW_TAG_structure_type);
DIEInteger Eight(8);
Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight);
DIEString FooStr(&Eight, "foo");
Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
DIE *Mem = new DIE(dwarf::DW_TAG_member);
DIEString MemStr(&Eight, "mem");
Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr);
DIEInteger Zero(0);
Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero);
DIE FooPtr(dwarf::DW_TAG_pointer_type);
FooPtr.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight);
DIEEntry FooRef(&Foo);
FooPtr.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRef);
DIEEntry FooPtrRef(&FooPtr);
Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooPtrRef);
Foo.addChild(Mem);
uint64_t MD5Res = DIEHash().computeTypeSignature(&Foo);
ASSERT_EQ(0x74ea73862e8708d2ULL, MD5Res);
}
}