Floating Point Unit Options¶
You can choose a subset of floating point options to be generate for a
particular binary. The subset is chosen by -mfpu=... option.
Here is a table which matches -mfpu= values to corresponding features for
ARC EM and ARC HS3x/4x as they defined in ARChitect.
-mfpu= |
Families | -has_fpu |
-fpu_dp_option |
-fpu_div_option |
-fpu_fma_option |
-fpu_dp_assist |
|---|---|---|---|---|---|---|
fpus |
EM, HS | On | — | — | — | — |
fpus_div |
EM, HS | On | — | On | — | — |
fpus_fma |
EM, HS | On | — | — | On | — |
fpus_all |
EM, HS | On | — | On | On | — |
fpud |
HS | On | On | — | — | — |
fpud_div |
HS | On | On | On | — | — |
fpud_fma |
HS | On | On | — | On | — |
fpud_all |
HS | On | On | On | On | — |
fpuda |
EM | On | — | — | — | On |
fpuda_div |
EM | On | — | On | — | On |
fpuda_fma |
EM | On | — | — | On | On |
fpuda_all |
EM | On | — | On | On | On |