Thumb2 assembly parsing and encoding for LDRD(immediate).

Refactor operand handling for STRD as well. Tests for that forthcoming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139322 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp
index a94f40a..d587eca 100644
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -207,6 +207,8 @@
       const { return 0; }
     unsigned getT2AddrModeImm8OpValue(const MachineInstr &MI, unsigned Op)
       const { return 0; }
+    unsigned getT2Imm8s4OpValue(const MachineInstr &MI, unsigned Op)
+      const { return 0; }
     unsigned getT2AddrModeImm8s4OpValue(const MachineInstr &MI, unsigned Op)
       const { return 0; }
     unsigned getT2AddrModeImm8OffsetOpValue(const MachineInstr &MI, unsigned Op)