Fix sin, cos, tan in non-default rounding modes (bug 3976)

[Andreas Jaeger]

On 03/02/2012 07:29 PM, Joseph S. Myers wrote:
> On Fri, 2 Mar 2012, Andreas Jaeger wrote:
>
>>> @@ -343,9 +360,13 @@ __sin(double x){
>>>    	else {
>>>    	  if (k == 0x7ff00000&&   u.i[LOW_HALF] == 0)
>>>    	    __set_errno (EDOM);
>>> -	  return x / x;
>>> +	  retval = x / x;
>>> +	  goto ret;
>>
>> I suggest to remove the goto ret.
>
> I think this code is clearer with goto ret used in each case including
> this one; it keeps the pattern consistent throughout the function and
> means that if the code gets rearranged and this bit of code moved then
> there's no need to add a goto ret in one place as part of the
> rearrangement.

Your call, this makes sense - I'm fine with a commit without the change 
that's why I said "suggest" ;)

Andreas
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