Displaying 2 results from an estimated 2 matches for "c9089edd".
2010 Mar 04
5
[LLVMdev] folding x * 0 = 0
On Mar 3, 2010, at 3:20 PM, Chris Lattner wrote:
>
> On Mar 3, 2010, at 1:53 PM, David Greene wrote:
>
>>>
>>> IMO rounding mode should be explicitly marked on the
>>> instruction as well.
>>
>> That would also be useful for some GPUs where each instruction can specify
>> its own rounding mode.
>
> SSE4 also has this for at least
2010 Mar 04
0
[LLVMdev] Fwd: folding x * 0 = 0
sorry forgot to change address :/
Rob:
from original post:
I would expect the following optimizations, but didn't find them in the
code:
x + 0 = x
x * 0 = 0
x * 1 = 1
x * -1 = -x
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100304/ab3a1b7a/attachment.html>