[Bug target/64953] Compiling sourcecode for STM32F103 causes USB errors with some optimization settings

[manuel.reimer at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64953

--- Comment #5 from manuel.reimer at gmx dot de ---
Created attachment 34690
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34690&action=edit
Preprocessed file for "usb.c"