[DebugInfo] Unify ChecksumKind and Checksum value in DIFile
Rather than encode the absence of a checksum with a Kind variant, instead put
both the kind and value in a struct and wrap it in an Optional.
Differential Revision: http://reviews.llvm.org/D43043
llvm-svn: 324928
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index 939d13f..f799453 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -280,15 +280,16 @@
MD5::MD5Result *DwarfUnit::getMD5AsBytes(const DIFile *File) {
assert(File);
- if (File->getChecksumKind() != DIFile::CSK_MD5)
+ Optional<DIFile::ChecksumInfo<StringRef>> Checksum = File->getChecksum();
+ if (!Checksum || Checksum->Kind != DIFile::CSK_MD5)
return nullptr;
// Convert the string checksum to an MD5Result for the streamer.
// The verifier validates the checksum so we assume it's okay.
// An MD5 checksum is 16 bytes.
- std::string Checksum = fromHex(File->getChecksum());
+ std::string ChecksumString = fromHex(Checksum->Value);
void *CKMem = Asm->OutStreamer->getContext().allocate(16, 1);
- memcpy(CKMem, Checksum.data(), 16);
+ memcpy(CKMem, ChecksumString.data(), 16);
return reinterpret_cast<MD5::MD5Result *>(CKMem);
}