Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B120F2048GM64/FPUEH/IFS#0x0
Interrupt Flag Set Register
Set FPIOC Interrupt Flag
Set FPDZC Interrupt Flag
Set FPUFC Interrupt Flag
Set FPOFC Interrupt Flag
Set FPIDC Interrupt Flag
Set FPIXC Interrupt Flag
https://github.com/cmsis-svd/cmsis-svd-data