How to solve this WARNING L15: MULTIPLE CALL TO SEGMENT

hi all I got a warning message when I setting OPTIMIZE (8,SPEED) Please tell me how to solve this WARNING L15: MULTIPLE CALL TO SEGMENT SEGMENT: ?PR?_TASK_SCHEDULER?MPG450 CALLER1: ?PR?EXINT1_INT_ROUTINE...
How to solve this WARNING L15: MULTIPLE CALL TO SEGMENT

hi all I got a warning message when I setting OPTIMIZE (8,SPEED) Please tell me how to solve this WARNING L15: MULTIPLE CALL TO SEGMENT SEGMENT: ?PR?_TASK_SCHEDULER?MPG450 CALLER1: ?PR?EXINT1_INT_ROUTINE...
which kind of compiler optimization can be applied in this code?

compiler: linaro-aarch64-2020.09-gcc10.2-linux5.4 optimization option: -O3 CPU: Arm A53 1Ghz Hello, this is newbie. code1 is 3.1x slower than code2 - code1: 106 ms - code2: 34 ms I think...
which kind of compiler optimization can be applied in this code?

compiler: linaro-aarch64-2020.09-gcc10.2-linux5.4 optimization option: -O3 CPU: Arm A53 1Ghz Hello, this is newbie. code1 is 3.1x slower than code2 - code1: 106 ms - code2: 34 ms I think...
How to combine C and Assembly code and how to run this program

How to combine C and Assembly code and how to run this program in keil, please explain in step wise. thanks Banu