implement uncond branch insertion, mark branches with isBranch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31160 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 810c254..c61d836 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -48,3 +48,11 @@
   }
   return false;
 }
+
+void ARMInstrInfo::InsertBranch(MachineBasicBlock &MBB,MachineBasicBlock *TBB,
+                                  MachineBasicBlock *FBB,
+                                  const std::vector<MachineOperand> &Cond)const{
+  // Can only insert uncond branches so far.
+  assert(Cond.empty() && !FBB && TBB && "Can only handle uncond branches!");
+  BuildMI(&MBB, ARM::b, 1).addMBB(TBB);
+}
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