clang vs gcc build performance (executable not build time)

Mike Kaganski mikekaganski at
Tue Nov 23 16:19:54 UTC 2021

On 23.11.2021 18:11, Michael Meeks wrote:
> On 22/11/2021 16:28, Arnaud Versini wrote:
>> Next crazy test I would 
>> like to do is between MSVC and clang on windows ! But it seems harder !
>      Ah - now that would be lovely being able to use the same compiler 
> everywhere =) would be really interesting to compare the performance there.

IIRC, there were already comparisons (about other software) clearly 
indicating Clang-built binary performance being superior to created by MSVC.

The only thing I would love to note is that besides performance, there's 
also usability of development tools that matters. If changing to Clang 
as compiler on Windows would mean we can't use Visual Studio's debugger 
(or its use would be less efficient), it would be a really sad thing. 
OTOH, I hope that today, Visual Studio works much better with 
clang-built binaries (it even suggests clang as part of its components 
when installing, which we use for Skia, so we already have it on Windows 
development systems).

Best regards,
Mike Kaganski

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