Operations not available on ARMv6-M targets #75
Description
These operations are not available on the thumbv6m-none-eabi target:
f64 as i64f64 as u64f64 == f64f64 > f64f64 < f64f32 as i64f32 as u64f32 == f32f32 > f32f32 < f32
and won't be available until these intrinsics:
__aeabi_dcmpeq__aeabi_dcmpgt__aeabi_dcmple__aeabi_dcmplt__aeabi_fcmpeq__aeabi_fcmpgt__aeabi_fcmple__aeabi_fcmplt
are ported to Rust because compiler-rt doesn't provide an implementation of these for the thumbv6m-none-eabi target.