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DIEHash: Support for simple (non-recursive, non-reused) type references

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llvm-svn: 192924
This commit is contained in:
David Blaikie
2013-10-17 22:07:09 +00:00
parent 5a823d5f05
commit ca353be652
3 changed files with 61 additions and 13 deletions
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36
llvm/unittests/CodeGen/DIEHashTest.cpp
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@@ -51,9 +51,6 @@ TEST(NamedType, DIEHash) {
Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
// Line and file number are ignored.
Foo.addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One);
Foo.addValue(dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, &One);
uint64_t MD5Res = DIEHash().computeTypeSignature(&Foo);
// The exact same hash GCC produces for this DIE.
@@ -78,10 +75,6 @@ TEST(NamespacedType, DIEHash) {
Foo->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr);
Foo->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
// Line and file number are ignored.
Foo->addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One);
Foo->addValue(dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, &One);
Space->addChild(Foo);
CU.addChild(Space);
@@ -90,4 +83,33 @@ TEST(NamespacedType, DIEHash) {
// 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);
// type
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);
}
}