[SLP] Use isInSchedulingRegion consistently [NFC]

Author: preames

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -2641,7 +2641,7 @@ class BoUpSLP {
 
     ScheduleData *getScheduleData(Value *V) {
       ScheduleData *SD = ScheduleDataMap[V];
-      if (SD && SD->SchedulingRegionID == SchedulingRegionID)
+      if (SD && isInSchedulingRegion(SD))
         return SD;
       return nullptr;
     }
@@ -2652,7 +2652,7 @@ class BoUpSLP {
       auto I = ExtraScheduleDataMap.find(V);
       if (I != ExtraScheduleDataMap.end()) {
         ScheduleData *SD = I->second[Key];
-        if (SD && SD->SchedulingRegionID == SchedulingRegionID)
+        if (SD && isInSchedulingRegion(SD))
           return SD;
       }
       return nullptr;
@@ -2774,7 +2774,7 @@ class BoUpSLP {
       auto I = ExtraScheduleDataMap.find(V);
       if (I != ExtraScheduleDataMap.end())
         for (auto &P : I->second)
-          if (P.second->SchedulingRegionID == SchedulingRegionID)
+          if (isInSchedulingRegion(P.second))
             Action(P.second);
     }
 
@@ -2876,8 +2876,8 @@ class BoUpSLP {
 
     /// The ID of the scheduling region. For a new vectorization iteration this
     /// is incremented which "removes" all ScheduleData from the region.
-    // Make sure that the initial SchedulingRegionID is greater than the
-    // initial SchedulingRegionID in ScheduleData (which is 0).
+    /// Make sure that the initial SchedulingRegionID is greater than the
+    /// initial SchedulingRegionID in ScheduleData (which is 0).
     int SchedulingRegionID = 1;
   };