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Re: optab handler for floating point to interger "fix" is not generated


 Thanks a lot.

 As a newbie, I keep reading the gccint manual and the source code.
But, the document is not kind enough for a newbie to jump start in a short amount of time.
Sometimes an advice from an expert gives a newbie a breakthrough.
I appreciate your help!

 David

----- Original Message -----
> From: "Segher Boessenkool" <segher@kernel.crashing.org>
> To: "David Kang" <dkang@isi.edu>
> Cc: "GCC" <gcc@gcc.gnu.org>
> Sent: Tuesday, November 25, 2014 3:25:47 PM
> Subject: Re: optab handler for floating point to interger "fix" is not generated
> On Tue, Nov 25, 2014 at 10:45:06AM -0800, David Kang wrote:
> >  Is the logical operators described similarly?
> > I tried "seqf2", "cmpseqf2", and "one_cmplseqf2" for "eq" of two
> > floating point numbers as it is shown below.
> > But none of them work.
> >
> > (define_expand "seqf2"
> >   [(set (match_operand:SI 0 "register_operand" "")
> >          (eq:SI (match_operand:SF 1 "register_operand" "")
> >                 (match_operand:SF 2 "register_operand" "")))]
> 
> This is done via cstoresf4. Please see the `gccint' manual, available
> online or via e.g. `make pdf'; or read gcc/doc/md.texi directly.
> 
> 
> Segher

-- 
----------------------
Dr. Dong-In "David" Kang
Computer Scientist
USC/ISI


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