Thread: Older compiler versions produce faster code?
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Old 13th February 2020, 20:42   #4  |  Link
LoRd_MuldeR
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Quote:
Originally Posted by StainlessS View Post
Spectre mitigations in MSVC ??? [think it results in slower code]

https://devblogs.microsoft.com/cppbl...tions-in-msvc/
I don't think so, because the /Qspectre option is off by default. Using this option even requires to install a special component from VS installer (Spectre-mitigated libraries) or the build will fail, as I just figured out

Anyway, even with /Qspectre explicitly enabled, VS2019 performance is the same as before – didn't degrade any further. And, either way, VS2019 produces way slower x64 code than VS2010.
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Last edited by LoRd_MuldeR; 13th February 2020 at 20:50.
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