Pop Push Using Arm GNU assembler

I am using TM4C123 evaluation board(cortex M4f Based) and trying to compile the project using different toolchains.GCC assembler generates an error for these instructions which I couldn't resolve or use a different instructions :

POP     {R4-R11}POP     {R12}POP     LR STMDB   R2!, {R4 - R11}    @ Stacking R4-->R11LDMIA   R2!, {R4 - R11}    @ unStacking R4-->R11 

Known that the POP instruction was acceptable when used to pop R0-R3 or R12 Could you help or refer to any alternative instructions?