[ARM] Register ARMExpandPseudo pass.

This allows -run-pass etc. to refer to it.

(Split off from D35156.)

llvm-svn: 312587
diff --git a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
index 18fd077..ba44e01 100644
--- a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
+++ b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp
@@ -33,6 +33,8 @@
 VerifyARMPseudo("verify-arm-pseudo-expand", cl::Hidden,
                 cl::desc("Verify machine code after expanding ARM pseudos"));
 
+#define ARM_EXPAND_PSEUDO_NAME "ARM pseudo instruction expansion pass"
+
 namespace {
   class ARMExpandPseudo : public MachineFunctionPass {
   public:
@@ -52,7 +54,7 @@
     }
 
     StringRef getPassName() const override {
-      return "ARM pseudo instruction expansion pass";
+      return ARM_EXPAND_PSEUDO_NAME;
     }
 
   private:
@@ -81,6 +83,9 @@
   char ARMExpandPseudo::ID = 0;
 }
 
+INITIALIZE_PASS(ARMExpandPseudo, DEBUG_TYPE, ARM_EXPAND_PSEUDO_NAME, false,
+                false)
+
 /// TransferImpOps - Transfer implicit operands on the pseudo instruction to
 /// the instructions created from the expansion.
 void ARMExpandPseudo::TransferImpOps(MachineInstr &OldMI,