Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series0/EFM32G/EFM32G232F128/PCNT1/IFS#0x0
Interrupt Flag Set Register
Underflow interrupt set
Overflow Interrupt Set
Direction Change Detect Interrupt Set
https://github.com/cmsis-svd/cmsis-svd-data