Clean up LEApcrel instuction(s) a bit. It's not really a Pseudo, so don't mark
it as such. Add some encoding information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119588 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp
index 01ca22c..14b0acc 100644
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -455,6 +455,14 @@
     llvm_unreachable("Unhandled instruction encoding format!");
     break;
   }
+  case ARMII::MiscFrm:
+    if (MI.getOpcode() == ARM::LEApcrelJT) {
+      // Materialize jumptable address.
+      emitLEApcrelJTInstruction(MI);
+      break;
+    }
+    llvm_unreachable("Unhandled instruction encoding!");
+    break;
   case ARMII::Pseudo:
     emitPseudoInstruction(MI);
     break;