https://bugzilla.mozilla.org/show_bug.cgi?id=766175
766175 - llvm breaks fastcall (or at least old versions of llvm)
RESOLVED (nobody) in Tamarin Graveyard - Virtual Machine. Last updated 2018-10-15.
at leastold versionsllvmbreaks
https://www.heroku.com/customers/fastcall/
How Fastcall Delivers Enterprise-Scale Voice and Messaging with Heroku
enterprise scaledeliversvoicemessagingheroku
https://www.getapp.com/it-communications-software/a/fastcall/
Fastcall 2026 Pricing, Features, Reviews & Alternatives | GetApp
Interested in Fastcall? Read GetApp's full overview to help inform your software purchase, which includes pricing options, features, integrations, and recent...
pricingfeaturesreviewsalternativesgetapp
https://forum.qt.io/topic/88018/__fastcall-incompatible-with-the-clr-option
__fastcall' incompatible with the '/clr' option | Qt Forum
Feb 22, 2018 - I reuse some Qt sources in a /CLR (MS common language runtime) project. In this environment, I receive hundreds of warnings of this kind: src/corelib/tools/q...
incompatibleclroptionqtforum
https://fastcall.3way.pl/login?next=/
FastCall
https://learn.microsoft.com/en-us/previous-versions/visualstudio/visual-studio-2013/6xa169sk(v=vs.120)
__fastcall | Microsoft Learn
microsoftlearn