Ian Lance Taylor <[EMAIL PROTECTED]> writes: > > I have done the following: > > 1. Defined them in FIXED_REGISTERS, CALL_USED_REGISTERS. > > 2. Ordered them using REG_ALLOC_ORDER. > > 3. Created a separate class in enum reg_class (FLOAT). > > 4. Assigned a specific character to identify the particular class ('f'). > > 5. Defined HARD_REGNO_MODE_OK such that if a float-register is used in > > any other mode, it should return 0. > > > > Still while emitting the insns, i get the floating point registers f0 > > (Reg No 16) in SI mode. > > > > (insn/f 39 38 40 (set:SI (mem:SI (pre_dec:SI (reg/f:SI 15 a7)) [0 S4 A32]) > > (reg:SI 16 f0)) 0 {movsi_push} (nil) > > (nil)) > > > > Have i missed out on anything? > > I think you want HARD_REGNO_MODE_OK.
Whoops, sorry, I see that you did use HARD_REGNO_MODE_OK. Do you have a movsf insn? Ian