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DIEHash: Summary hashing of member functions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193432 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2013-10-25 20:04:25 +00:00
parent b1d39851bf
commit 7c0c2e56b0
2 changed files with 19 additions and 1 deletions
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2
lib/CodeGen/AsmPrinter/DIEHash.cpp
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@ -413,7 +413,7 @@ void DIEHash::computeHash(const DIE &Die) {
I != E; ++I) {
// 7.27 Step 7
// If C is a nested type entry or a member function entry, ...
if (isType((*I)->getTag())) {
if (isType((*I)->getTag()) || (*I)->getTag() == dwarf::DW_TAG_subprogram) {
StringRef Name = getDIEStringAttr(**I, dwarf::DW_AT_name);
// ... and has a DW_AT_name attribute
if (!Name.empty()) {

18
unittests/CodeGen/DIEHashTest.cpp
View File

@ -496,4 +496,22 @@ TEST(DIEHashTest, NestedType) {
// The exact same hash GCC produces for this DIE.
ASSERT_EQ(0xde8a3b7b43807f4aULL, MD5Res);
}
// struct { static void func(); };
TEST(DIEHashTest, MemberFunc) {
DIE Unnamed(dwarf::DW_TAG_structure_type);
DIEInteger One(1);
Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One);
DIE *Func = new DIE(dwarf::DW_TAG_subprogram);
DIEString FuncStr(&One, "func");
Func->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FuncStr);
Unnamed.addChild(Func);
uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
// The exact same hash GCC produces for this DIE.
ASSERT_EQ(0xd36a1b6dfb604ba0ULL, MD5Res);
}
}