Jan Vesely 3ff611bb38 SelectionDAG: Add KnownBits and SignBits computation for EXTRACT_ELEMENT
v2: use getZExtValue
    add missing break
    codestyle

v3: add few more comments

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Matt Arsenault <Matthew.Arsenault@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226880 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-22 23:42:41 +00:00
..