IR: Add a configuration point for MDNodeInfo::isEqual, NFC
authorDuncan P. N. Exon Smith <dexonsmith@apple.com>
Sat, 16 Apr 2016 23:42:04 +0000 (23:42 +0000)
committerDuncan P. N. Exon Smith <dexonsmith@apple.com>
Sat, 16 Apr 2016 23:42:04 +0000 (23:42 +0000)
commitf22912780dd565f5cc1f173a90f1460f2a0d28b1
treec8b49bb68452295ee4df18777616288dcc229c22
parenta770a7ec5defa7c17674c51bb68edb0f29152d0b
IR: Add a configuration point for MDNodeInfo::isEqual, NFC

This commit has no functionality change, but it adds a configuration
point for MDNodeInfo::isEqual to allow custom uniquing of subclasses of
MDNode, minimizing the diff of a follow-up.

llvm-svn: 266542
llvm/lib/IR/LLVMContextImpl.h