Add POP instruction to ARM integrated assembler.

src/IceAssemblerARM32.h

Index: src/IceAssemblerARM32.h
diff --git a/src/IceAssemblerARM32.h b/src/IceAssemblerARM32.h
index a7f8c201de1bb81f68a0076b38010dde9e04a017..96e800b443e787702ba9db33ee651891b4abc3ef 100644
--- a/src/IceAssemblerARM32.h
+++ b/src/IceAssemblerARM32.h
@@ -189,6 +189,11 @@ public:
   void orr(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
            bool SetFlags, CondARM32::Cond Cond);
 
+  void pop(const Operand *OpRt, CondARM32::Cond Cond);
+
+  // Note: Registers is a bitset, where bit n corresponds to register Rn.
+  void popList(const IValueT Registers, CondARM32::Cond Cond);
+
   void push(const Operand *OpRt, CondARM32::Cond Cond);
 
   // Note: Registers is a bitset, where bit n corresponds to register Rn.