Fix issue 12849: pmovmskb instruction cannot store to 64-bit registers

[Hackerpilot]

https://issues.dlang.org/show_bug.cgi?id=12849

[WalterBright]

Need to add a test case. Look in test/runnable/iasm64.d for how to do it.

[WalterBright]

BTW, I understand the desire to be anonymous, but please attach a real name to your pseudonym. For copyright reasons, DMD needs a legal trail of who contributed what. Thanks!

[Hackerpilot]

You mean change my Github profile to include my name, or was there an authors or contributors file I should modify?

[WalterBright]

You mean change my Github profile to include my name

Yes, that would be preferred, or you can privately email me your name.

[Hackerpilot]

I've linked to my Github profile numerous times under my real name on the newsgroup, so I might as well put it on Github as well.

[WalterBright]

Thanks!