Quoting Mohamed Shafi :
I have implemented the above solution and it works. I have to support
the same for DF also. But with DF i have a problem with the
constraints. My target generates code for both big and little endian.
The ABI specifies that when a 64bit value is passed as an argument
they a
2009/9/14 Richard Henderson :
> Another thing to look at, since you have hand-written routines and may be
> able to specify that e.g. only a subset of the normal call clobbered
> registers are actually modified, is to leave the call as a "compare" insn.
> Something like
>
> (define_insn "*cmpsf"
>
Another thing to look at, since you have hand-written routines and may
be able to specify that e.g. only a subset of the normal call clobbered
registers are actually modified, is to leave the call as a "compare"
insn. Something like
(define_insn "*cmpsf"
[(set (reg:CC status-reg)
(c
On 09/14/2009 06:59 AM, Mohamed Shafi wrote:
Is there a way to let GCC know that the result for FP compare
are stored in the Status Register so that GCC generates directly a
jump operation? How can i implement this?
There is no way to do this via the standard libcall sequence.
In order to impl
Hi all,
I am doing a GCC port for a 32bit target in GCC 4.4.0. The target uses
hand coded floating point compare routines. Generally the function
returns the values in the general purpose registers. But these fp cmp
routines return the result in the Status Register itself. So there is
no need to
