3.172. __nv_fsub_rn
Prototype:
float @__nv_fsub_rn(float %x, float %y)
Description:
Compute the difference of x and y in round-to-nearest-even rounding mode.
Returns:
Returns x - y.
Note:
For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Single-Precision Floating-Point Functions section.
This operation will never be merged into a single multiply-add instruction.
Library Availability:
Compute 2.0: Yes
Compute 3.0: Yes
Compute 3.5: Yes