On 19 February 2019 19:18:21 CET, Steve Kargl
<s...@troutmask.apl.washington.edu> wrote:
>On Mon, Feb 18, 2019 at 02:23:34PM +0100, Martin Liška wrote:
>>
>> As I installed all needed patches, I'm sending a documentation entry
>> for the new functionality.
>>
>> Thoughts?
>
>See below. Ok to commit with suggested changes.
>
>> Thanks,
>> Martin
>
>> >From 2d304e3b1d734548811f963c5bed1855b5375c43 Mon Sep 17 00:00:00
>2001
>> From: marxin <mli...@suse.cz>
>> Date: Mon, 18 Feb 2019 14:21:56 +0100
>> Subject: [PATCH] Document Fortran header directive.
>>
>> ---
>> gcc/fortran/gfortran.texi | 19 +++++++++++++++++++
>> 1 file changed, 19 insertions(+)
>>
>> diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
>> index 02ff32f741f..72771a851f7 100644
>> --- a/gcc/fortran/gfortran.texi
>> +++ b/gcc/fortran/gfortran.texi
>> @@ -3596,6 +3596,25 @@ loop that follows. N is an integer constant
>specifying the unrolling factor.
>> The values of 0 and 1 block any unrolling of the loop.
>>
>>
>> +@node BUILTIN directive
>> +@subsection BUILTIN directive
>> +
>> +The syntax of the directive is
>> +
>> +@code{!GCC$ BUILTIN (B) attributes simd FLAGS IF('target')}
>> +
>> +You can used this directive to define which middle-end built-ins
>have vector
>
>s/used/use
>
>> +implementation. B is name of the middle-end built-in. FLAGS are
>optional
>
>s/B is/@code{B} is the
>S/FLAGS/@code{FLAGS}
>
>> +and must have be either "(inbranch)" or "(notinbranch)". IF
>statement
>
>delete 'have'
>s/IF/The @code{IF}
>
>> +is optional and is used to filter multilib ABIs for that
>> +the built-in should be vectorized. Example usage:
>
>Change "for that the built-in should be vectorized" to
>"for the built-in that should be vectorized"
>
>
>> +
>> +@smallexample
>> +!GCC$ builtin (sinf) attributes simd (notinbranch) if('x86_64')
>> +@end smallexample
>> +
>> +The purpose of the directive is to provide an API among the GCC
>compiler and
>> +the GNU C Library which would define vector implementation of math
>routines.
s/implementation/implementations/
define? Or provide.
Thanks,
>>
>> @node Non-Fortran Main Program
>> @section Non-Fortran Main Program
>> --
>> 2.20.1
>>
