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No performance improvement when using restrict keyword for array parameters
Kiran.Chandramohan
Join Date: 6 May 14
Posts: 9
Posted: Fri, 2015-01-30 03:48
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Hi,

I was performing some experiments with matrix multiplication. Usually when I pass the information that the array pointer parameters cannot alias through the restrict keyword, I get a big jump in performance. I have observed this performance improvement on the TI C64X+ DSP. But I dont get this performance improvement with the Hexagon DSP. Is this expected behaviour ?

Ideally I would have expected that with the knowledge that the array pointers cannot alias the compiler can schedule better.

--Kiran

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