dotnet/runtime

Updating the RMW flags for HWIntrinsic nodes

Open

#9.907 geöffnet am 9. März 2018

Auf GitHub ansehen
 (3 Kommentare) (0 Reaktionen) (0 zugewiesene Personen)C# (5.445 Forks)batch import
area-CodeGen-coreclrenhancementhelp wanted

Repository-Metriken

Stars
 (17.886 Stars)
PR-Merge-Metriken
 (Durchschn. Merge 12T 11h) (661 gemergte PRs in 30 T)

Beschreibung

At present, RMW semantics is tracked via a combination of the compiler support for VEX-encoded instructions and the NoRMWSemantics flag.

We should update this to instead be a combination of flags: RMWSemanticsSseOnly and RMWSemanticsAlways (or similar).

This will allow all scenarios to be table driven and for the check to be a positive case, rather than a negative case (which can sometimes lead to confusion).

category:implementation theme:hardware-intrinsics skill-level:intermediate cost:small

Contributor Guide