Question: In the optimized DGEMM code, what does the _ mm 5 1 2 _ broadcastsd _ pd ( ) intrinsic do ? It converts single

In the optimized DGEMM code, what does the

_

512_

broadcastsd

_

()

intrinsic do

?

It converts single to double precision format It loads a scalar value into all elements of a register It broadcasts a packed double precision number across multiple registers It creates

8

identical copies of a scalar double

-

precision number in a register

In the optimized DGEMM code, what does the _ mm 5

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