[llvm] [TableGen][SchedModel] Introduce a new SchedPredicate that checks against SubtargetFeature (PR #161888)

[Matt Arsenault via llvm-commits]

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@@ -1586,6 +1586,23 @@ static void emitPredicates(const CodeGenSchedTransition &T,
         continue;
       }
 
+      if (Rec->isSubClassOf("FeatureSchedPredicate")) {
+        const Record *FR = Rec->getValueAsDef("Feature");
+        if (PE.shouldExpandForMC())
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arsenm wrote:

Braces 

https://github.com/llvm/llvm-project/pull/161888