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Hi,
We are working on STM32G070 micro-controller. Our code size is approximately 75KB. We are using Embedded C++ language, Keil uvision version 5 with code optimization level 2.
We were trying to reduce the code size and we observed some strange things during compilation as below.
1. If I remove one function call from a function, the code size is increased by over 100 Bytes.
Expected: Removing one function call inside a function shall reduce the code size.
2. if we add a function call, code size is increased by over 100 bytes.
Expected: Code size shall be increased by maximum 10-20 bytes only as this function call was already made earlier from other functions in same file.
Do you know the reason for the above strange behavior?