[llvm-commits] [llvm-gcc-4.0] r42134 - /llvm-gcc-4.0/trunk/gcc/llvm-convert.cpp

[Chris Lattner]

On Sep 26, 2007, at 11:57 AM, Duncan Sands wrote:

> Hi Chris,
>
>>> How about constant folding calls to functions such as sqrt?
>>
>> Do you mean sqrt specifically or something more general?
>>
>> In general, we can extend APFloat to do lots of different math
>> functions, including sqrt etc.  In practice, APFloat doesn't do sqrt
>> yet, so we use host float/double to do it.
>
> sorry I wasn't very clear.  I was asking if you were planning to
> implement APFloat versions of all elementary functions for constant
> folding purposes.

Not in the short term, though Neil may contribute some stuff here and  
there as his time permits.

> Sounds like a lot of work :)

Indeed :)

-Chris