Re: [Patch] Fix emit-rtl.c for 64-bit targets

[Eric Christopher <echristo at twigboy dot cygnus dot com>]

> Even on systems with 9-bit bytes (the in-progress PDP-10 port)?  rtl.texi
> says SFmode is four bytes and DFmode is eight bytes, where a byte is
> BITS_PER_UNIT bits, and if SFmode and DFmode are something else then the
> documentation need changing first.

Yes.  You're right.  I mispoke on my original mail.  What I meant to say
was that we need to check for single and double precision floats which are
32 and 64 bits, instead of a check for SF and DF mode respectively.

How I ran into this problem was a machine with 64-bit floating point
registers with 8-bit bytes.

Anyhow, is this more clear?  Is there anything I should change or update
now?

-eric

> 
>  From rtl.texi:
> 
> 	Here is a table of machine modes.  The term ``byte'' below refers to an
> 	object of @code{BITS_PER_UNIT} bits (@pxref{Storage Layout}).
> ...
> 	@findex SFmode
> 	@item SFmode
> 	``Single Floating'' mode represents a single-precision (four byte) floating
> 	point number.
> 
> 	@findex DFmode
> 	@item DFmode
> 	``Double Floating'' mode represents a double-precision (eight byte) floating
> 	point number.
> 
> 

-- 
Pain is not the cleanser