Go's march to low-latency GC

[jmh530 via Digitalmars-d]

On Monday, 11 July 2016 at 13:13:02 UTC, Patrick Schluter wrote:
>
> Because of attitudes like shown in that thread
> https://forum.dlang.org/post/ilbmfvywzktilhskpeoh@forum.dlang.org
> people who do not really understand why 32 bit systems are a 
> really problematic even if the apps don't use more than 2 GiB 
> of memory.
>
> Here's Linus Torvalds classic rant about 64 bit
> https://cl4ssic4l.wordpress.com/2011/05/24/linus-torvalds-about-pae/  (it's more about PAE but the reasons why 64 bits is a good thing in general are the same: address space!)

Why can't you use both 32bit and 64bit pointers when compiling 
for x86_64?

My guess would be that using 64bit registers precludes the use of 
32bit registers.