Replace LDriu*[bhdw]_indexed_V4 instructions with "def Pats".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174193 91177308-0d34-0410-b5e6-96231b3b80d8
Hexagon: Test case to confirm generation of indexed loads with zero offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174196 91177308-0d34-0410-b5e6-96231b3b80d8