[LLVMdev] Wrong tan

[Dale Johannesen]

On Jun 16, 2007, at 12:52 PM, Gonsolo wrote:

> Hi!
>
> Dale Johannesen schrieb:
>>
>> On Jun 16, 2007, at 12:35 AM, Duncan Sands wrote:
>>
>>>> Result compiled with llvm-g++ 2.0:
>>>> tan float: -2.18504
>>>> tan double: 0.309336
>>>
>>> This may be due to bug 1505.
>>
>> It fails on x86 using x87 floating point, with the inliner not run,
>> because of 1505, yes.  Gonsolo, is that your situation?
>>
>
> I tried a simple "llvm-g++ -o simple tan.bug.cc"
> Output:
> tan float: -2.18504
> tan double: 0.309336

Thanks, but what I'm trying to get at is, what kind of machine are  
you running on?
If x86, are you set up to use x87 or SSE for floating point?  (You  
can tell by
compiling with -save-temps and looking at the .s file.  If you see  
any references
to %xmm registers, that's SSE.)