Profiling DMD's Compilation Time with dmdprof

[Neia Neutuladh]

On Thu, 08 Nov 2018 01:49:49 +1300, rikki cattermole wrote:
> On 08/11/2018 1:46 AM, Patrick Schluter wrote:
>> Now that the compiler is completely in D, wouldn't it be a good idea to
>> activate the GC in the compiler. I know that it requires some care for
>> bootstrapping the compiler when there are dependencies to the D
>> runtime,
>> but the compiler would be an excellent example of the advantage of the
>> GC (i.e. dumb fast allocations as long as there's memory, collection
>> when no memory left which is miles away better than to get OOM-killed).
> 
> No, that would be a bad idea currently.
> 
> https://issues.dlang.org/show_bug.cgi?id=18811

That issue describes a memory leak. A memory leak of half a megabyte per 
full compiler invocation on a small file should still result in a lot of 
code being compilable on low-end machines that currently isn't.