In section 2.3.3 of the C2000 compiler guide, the description for the --fp_mode option says:
The default floating-point mode is strict. To enable relaxed floating-point mode use the --fp_mode=relaxed option. Relaxed floating-point mode causes double-precision floating-point computations and storage to be converted to integers where possible...

This should say "converted to single-precision floating-point where possible", not integers,