On Saturday, 25 April 2015 at 21:26:25 UTC, Andrei Alexandrescu
wrote:
On 4/22/15 1:36 PM, John Colvin wrote:
Is it even possible to contrive a case where
1) The default initialisation stores are technically dead and
2) Modern compilers can't tell they are dead and elide them and
3) Doing the initialisation has a significant performance
impact?
The boring example is "extra code causes instruction cache
misses".
I've seen statically-sized arrays causing problems. -- Andrei
Care to outline an example?
