Macros that are defined under config but not used anywhere.

[Richard Sandiford]

Thanks for doing this.

Kazu Hirata <kazu@cs.umass.edu> writes:
> mips:
> BIGGEST_MAX_ARGS_IN_REGISTERS
> DFMODE_NAN
> PIC_OFFSET_TABLE_MASK
> SFMODE_NAN
> SINGLE_WORD_MODE_P
> TARGET_DEBUG_F_MODE
> TARGET_DEBUG_I_MODE

Yeah, it looks like all these can go.  Will come up with a patch soon.

In the long run, it would be nice to get rid of all the TARGET_DEBUG*
stuff...

> TARGET_MIPS4100
> TARGET_MIPS4300
> TARGET_MIPS4KC
> TARGET_MIPS5KC
> TARGET_SB1
> TUNE_SB1
> TUNE_SR71K

It looks like these were added on a see-one, play-one basis.  Not sure
whether it's worth getting rid of them or not.

Richard