llvm dev - Jul 2017 - setOperationAction(ISD::ADD, MVT::v16i32, Legal) in isellowering.cpp

Hello,

I want to ask why the following is not defined in x86isellowering.cpp

    setOperationAction(ISD::ADD,MVT::v16i32, Legal);

means i havent seen this in x86iselolwering.cpp then how it considers
v16i32 add/ sub a legal operation? but i have seen this defined for mul i.e

    setOperationAction(ISD::MUL, MVT::v16i32, Legal);

but this is not defined for add and sub why??
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I think ADD and SUB are called in a loop that iterates over a list of types.

On Sun, Jul 23, 2017 at 3:31 AM hameeza ahmed <hahmed2305 at gmail.com>
wrote:
> Hello,
>
> I want to ask why the following is not defined in x86isellowering.cpp
>
>     setOperationAction(ISD::ADD,MVT::v16i32, Legal);
>
> means i havent seen this in x86iselolwering.cpp then how it considers
> v16i32 add/ sub a legal operation? but i have seen this defined for mul i.e
>
>     setOperationAction(ISD::MUL, MVT::v16i32, Legal);
>
> but this is not defined for add and sub why??
>
-- 
~Craig
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