InstCombine: Merge "(trunc x) == C1 & (and x, CA) == C2" into a single and+icmp.

This happens when GVN widens loads. Part of PR6627.

llvm-svn: 130405
2 files changed
tree: 7e33d9ef47df86b96e87b688af23c621afb0a1ae
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/