On 25.12.2010, at 0:20, Henning Thielemann wrote:
> On 13.12.2010 16:38, Pavel Perikov wrote:
>> Is it possible to make GHC-7.0.1 to generate intrinsic instructions instead
>> of calls to C library to compute trigonometric functions?
>>
> As far as I remember GHC generates FPU instructions for sinus and friends
> with its native code generator. However, I noted that LLVM does not do this
> and always jumps into the C library, although it is documented otherwise.
ok, I'm answering my own question here. -fasm indeed uses intrinsic operations
in x87 mode. Sadly SSE does not have trigonometric and instructions, though
series expansions using SSE2 instructions is usually _faster_ than fsin/fcos.
So the behavior is expected.
P.
_______________________________________________
Haskell-Cafe mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/haskell-cafe
