[X86] Remove an if check on the result of a cast. NFC
authorCraig Topper <craig.topper@intel.com>
Wed, 8 Nov 2017 22:26:37 +0000 (22:26 +0000)
committerCraig Topper <craig.topper@intel.com>
Wed, 8 Nov 2017 22:26:37 +0000 (22:26 +0000)
commit55029d811ff8c28fcbfb91faa6c658b59136943c
treeac4911c235f62b88183dd5c30befb8703adef897
parenta8e56458e6689c25e647664ea9d9c09459a0ade9
[X86] Remove an if check on the result of a cast. NFC

cast takes a non-null input and produces a non-null output. So this if can never fail.

llvm-svn: 317731
llvm/lib/Target/X86/X86ISelDAGToDAG.cpp