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08ef53f0
2015 Jan 15
0
[LLVMdev] [RFC] Integer Saturation Intrinsics
On 01/14/2015 04:16 PM, Ahmed Bougacha wrote:
> On Thu, Jan 15, 2015 at 12:42 AM, Philip Reames
> <listmail at philipreames.com> wrote:
>> At a very high level, why do we need these intrinsics?
> In short, to catch sequences you can't catch in the SelectionDAG.
>
>> What is the use case? What are typical values for N?
> Typically, you get this from (a little
2015 Jan 15
2
[LLVMdev] [RFC] Integer Saturation Intrinsics
On Thu, Jan 15, 2015 at 12:42 AM, Philip Reames
<listmail at philipreames.com> wrote:
> At a very high level, why do we need these intrinsics?
In short, to catch sequences you can't catch in the SelectionDAG.
> What is the use case? What are typical values for N?
Typically, you get this from (a little overlapping) compression, DSP,
or pixel-handling code.
Off the top of my