llvm /
llvm /
feeb3cebe7a586a8e1b12735024389dd8d3bab53 [SCEV] Do not bother creating separate SCEVUnknown for unreachable nodes
Currently, SCEV creates SCEVUnknown for every node of unreachable code. If we
have a huge amounts of such code, we will be littering SE with these nodes. We could
just state that they all are undef and save some memory.
Differential Revision: https://reviews.llvm.org/D57567
Reviewed By: sanjoy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353017 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed