CCS/TM4C1294NCPDT: How to measure time of execution for a particular function in CCS

Use of the Forum Search Box (atop this forum page) - quickly/easily/massively reveals this technique:   (surely warrants your 'future' use...)

• Just prior to your specified 'Function Call' - Set a GPIO bit
• Upon completion of that function's execution - Clear that bit
• Use of a scope is the (usual) means to capture and measure that function's duration
• Minus a scope - you can employ an MCU's Timer (set to Edge Time Mode) - to capture the 'Rise' of that GPIO bit - and via a 2nd (Sync'ed) Timer (again - Edge Time Mode - for coding ease) capture the 'Fall' of that GPIO bit.   The 'delta' between the two meets your expressed (code execution time) requirement...

OR ... with a 'Pro IDE' (such as IAR or Keil) - the time between 2 breakpoints (first one set at your function's beginning - second set one instruction beyond function's end) is, 'Automatically Captured & Displayed!'      

'FREE' too often - yields other - (more onerous) and ongoing (forever) costs...   PRO IDEs - each/every day - prove & reinforce their (real) value!