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Code size difference between CCS and IAR for the same code?

Other Parts Discussed in Thread: MSP430F2410

0211.CCS_IAR_MapnLinkerFile.rar

I am compiling the same code both in IAR and CCS.
In IAR code memory is 49,716 and in CCS Flash used space is 50,972 as per map file.
MCU:MSP430F2410 (56KB Flash).
I have attached both Linker and map files.
I need to know why is the difference and how do i optimize the compiler to reduce the code size in CCS.
What are the optimization i can do in CCS to reduce the size?