PATCH: gcc/config/mips/mips.h reorg

[Anthony Green]

Eric Christopher <echristo@twigboy.cygnus.com> writes:

>	(SUBTARGET_TARGET_OPTIONS): Add -march=, currently identical to
>	-mcpu=.  Change help text for -mipsX.

invoke.texi will need a patch describing -march= for MIPS.

>  /* ISA has branch likely instructions (eg. mips2). */ 
> -#define ISA_HAS_BRANCHLIKELY	(mips_isa != 1)
> +#define ISA_HAS_BRANCHLIKELY	(mips_isa != 1                          \
> +				 || TARGET_MIPS3900)

While you are not introducing a regression, I think this is wrong.
This means the compiler will emit branch-likely instructions for the
TX39 even if the user has specified -mips1, which is supposed to
restrict code generation to the MIPS I ISA.

I suggest my unreviewed patch for this...

http://gcc.gnu.org/ml/gcc-patches/2001-04/msg01024.html


AG

-- 
Anthony Green                                                        Red Hat
                                                       Sunnyvale, California