Consolidate reg-imm / reg-reg-imm address mode selection logic in one place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75990 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.cpp b/lib/Target/SystemZ/SystemZInstrInfo.cpp
index 82018e8..c82aa0b 100644
--- a/lib/Target/SystemZ/SystemZInstrInfo.cpp
+++ b/lib/Target/SystemZ/SystemZInstrInfo.cpp
@@ -351,6 +351,9 @@
   case SystemZ::MOV64m32r:
     Opc = SystemZ::MOV64m32ry;
     break;
+  case SystemZ::MOV8mi:
+    Opc = SystemZ::MOV8miy;
+    break;
   case SystemZ::MUL32rm:
     Opc = SystemZ::MUL32rmy;
     break;