Rename t2 TBB and TBH instructions to reference that they encode the jump table
data. Next up, pseudo-izing them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120320 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index 6f01846..3c25408 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -1766,7 +1766,7 @@
       if (!OptOk)
         continue;
 
-      unsigned Opc = ByteOk ? ARM::t2TBB : ARM::t2TBH;
+      unsigned Opc = ByteOk ? ARM::t2TBB_JT : ARM::t2TBH_JT;
       MachineInstr *NewJTMI = BuildMI(MBB, MI->getDebugLoc(), TII->get(Opc))
         .addReg(IdxReg, getKillRegState(IdxRegKill))
         .addJumpTableIndex(JTI, JTOP.getTargetFlags())