More rewrites of x86 codegen regression tests with FileCheck



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180837 91177308-0d34-0410-b5e6-96231b3b80d8
Forget remove the tempfile argument



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180838 91177308-0d34-0410-b5e6-96231b3b80d8