There is no profiler in Creator AFAIK. You can yse SysTick counter to measure amount of CPU cycles taken by a function or operation as shown below. You will be limited by 2^24 CPU ticks only (about 0.25sec @24MHz CPU speed), as SysTick counter on Cortex M0 and M3 can not go beyond SYSTICK_MAXVAL.
#define SYSTICK_MAXVAL 0x00FFFFFF //max allowed SysTick counter value for 24bit
uint32 SysCntVal; // The value of SysTick counter you are trying to retrieve
float x=1.0f; //some variable to work with
SysTick_Config(SYSTICK_MAXVAL); //reset counter set to max value, 1-time, will not reload