Benjamin Kramer 4b74df7229 SimplifyLibCalls: Add basic optimization of memchr calls.
This is just memchr(x, y, 0) -> nullptr and constant folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232896 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-21 15:36:21 +00:00
..
2015-03-20 20:17:07 +00:00