Don't add an attribute that already exists and don't remove an attribute that doesn...
authorBill Wendling <isanbard@gmail.com>
Thu, 28 Feb 2013 19:17:40 +0000 (19:17 +0000)
committerBill Wendling <isanbard@gmail.com>
Thu, 28 Feb 2013 19:17:40 +0000 (19:17 +0000)
commit1abc00b6d18b1a81548e52783fbccd1c59ebf968
tree20f95fcc8301750a02bc7428c45833c282018a3b
parenta6ca70369366d549f104ee72822c6f591ea0ece0
Don't add an attribute that already exists and don't remove an attribute that doesn't exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176289 91177308-0d34-0410-b5e6-96231b3b80d8
lib/IR/Attributes.cpp