R600/SI: Expand all v16[if]32 operations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202543 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Verify all instructions in the AsmPrinter on debug builds

Make a call to R600's implementation of verifyInstruction() to
check that instructions are only using legal operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202544 91177308-0d34-0410-b5e6-96231b3b80d8