What should happen here?

Steven Schveighoffer schveiguy at gmail.com
Sun Sep 26 15:00:31 UTC 2021


On 9/25/21 10:13 PM, Walter Bright wrote:
> On 9/25/2021 6:02 PM, Steven Schveighoffer wrote:
>> As I said, the optimizer is fighting you the entire way.
> 
> I'd reframe it as the user is trying to impose his own semantics on the 
> optimizer :-)
> 
> Selecting semantics that enable aggressive optimizations is always a 
> dance between user predictability and high performance. High performance 
> usually wins.
> 
> Disabling dead assignment elimination would have a catastrophic 
> deleterious effect on optimizations. A lot of template bloat would remain.
> 
> 
>> But I still am wishing for a simple "keep this alive" mechanism that 
>> doesn't add too much cruft, and is guaranteed to keep it alive.
> 
> That's exactly what addRoot() is for.

OK.

https://github.com/dlang/dlang.org/pull/3102

-Steve


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