IR: Use Optional instead of unique_ptr for Metadata map in ValueMap, NFC
authorDuncan P. N. Exon Smith <dexonsmith@apple.com>
Tue, 19 Apr 2016 16:17:48 +0000 (16:17 +0000)
committerDuncan P. N. Exon Smith <dexonsmith@apple.com>
Tue, 19 Apr 2016 16:17:48 +0000 (16:17 +0000)
commit82c20b232a31703562d9af264768633b25a9ff48
tree07aa99dd6d23a836b8aee8ac44f5aeb438170a8f
parent113adde594a0caae0ca52d0e5eddb916fc2b0858
IR: Use Optional instead of unique_ptr for Metadata map in ValueMap, NFC

llvm-svn: 266751
llvm/include/llvm/IR/ValueMap.h