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whitequark_ | 9 years ago

> MSVC compiler doesn't do SROA, as far as I know.

In the future, consider verifying your extraordinary claims. Of course it does, and it took me about two minutes to demonstrate that: https://godbolt.org/g/9kT1NP

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galacticpony|9 years ago

"As far as I know" implies that I might not know, so that's not an extraordinary claim.

You haven't actually verified SROA. The scalar replacement didn't kick in for the non-inlined method, so this could be a result of loop-specific optimizations. The code is also far from optimal, but that's besides your point of course.

Also note that you're testing an RC of the latest version. There's a feature request for SROA from 2013, so it may be implemented by now: https://connect.microsoft.com/VisualStudio/feedback/details/...