Inline Assembler bug fixes

[tsbockman]

On Saturday, 29 August 2020 at 06:36:03 UTC, Walter Bright wrote:
> But, once one figures out how it works, might as well go 
> through the bug list for iasm and see what can be done about 
> them.
>
> I'm happy to report that it has been whittled down to 3:
>
> https://issues.dlang.org/show_bug.cgi?id=12635 - the 
> description is a little vague and I can't determine what the 
> issue actually is
>
> https://issues.dlang.org/show_bug.cgi?id=12878 - this one is a 
> bit complicated to fix, but fortunately isn't critical
>
> https://issues.dlang.org/show_bug.cgi?id=15242 - an enhancement 
> request, not a bug
>
> The list:
>
> https://issues.dlang.org/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&keywords=iasm&keywords_type=allwords&list_id=232881&query_format=advanced

I discovered that the VCVTPS2PH instruction is broken a while 
back, but didn't know to tag my issue "iasm" so it didn't show up 
in your search:

https://issues.dlang.org/show_bug.cgi?id=20111