tree 36e5d75294f6632cb5486c95675e0f2b6d13de86
parent e031e4bcb91ceafa2ddf0a7480a7135bdf5ebd57
author Duncan Sands <baldrick@free.fr> 1241592590 +0000
committer Duncan Sands <baldrick@free.fr> 1241592590 +0000

Allow readonly functions to unwind exceptions.  Teach
the optimizers about this.  For example, a readonly
function with no uses cannot be removed unless it is
also marked nounwind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8