[TableGen] Make all the fields in PatternToMatch private. NFCI

Add the few missing accessor methods. Use accessor methdods
everywhere.

utils/TableGen/CodeGenDAGPatterns.cpp

@@ -4287,13 +4287,13 @@ void CodeGenDAGPatterns::ExpandHwModeBasedTypes() {
   PatternsToMatch.swap(Copy);
 
   auto AppendPattern = [this, &ModeChecks](PatternToMatch &P, unsigned Mode) {
-    TreePatternNodePtr NewSrc = P.SrcPattern->clone();
+    TreePatternNodePtr NewSrc = P.getSrcPattern()->clone();
-    TreePatternNodePtr NewDst = P.DstPattern->clone();
+    TreePatternNodePtr NewDst = P.getDstPattern()->clone();
     if (!NewSrc->setDefaultMode(Mode) || !NewDst->setDefaultMode(Mode)) {
       return;
     }
 
-    std::vector<Predicate> Preds = P.Predicates;
+    std::vector<Predicate> Preds = P.getPredicates();
     const std::vector<Predicate> &MC = ModeChecks[Mode];
     llvm::append_range(Preds, MC);
     PatternsToMatch.emplace_back(P.getSrcRecord(), std::move(Preds),
@@ -4305,10 +4305,10 @@ void CodeGenDAGPatterns::ExpandHwModeBasedTypes() {
 
   for (PatternToMatch &P : Copy) {
     TreePatternNodePtr SrcP = nullptr, DstP = nullptr;
-    if (P.SrcPattern->hasProperTypeByHwMode())
+    if (P.getSrcPattern()->hasProperTypeByHwMode())
-      SrcP = P.SrcPattern;
+      SrcP = P.getSrcPatternShared();
-    if (P.DstPattern->hasProperTypeByHwMode())
+    if (P.getDstPattern()->hasProperTypeByHwMode())
-      DstP = P.DstPattern;
+      DstP = P.getDstPatternShared();
     if (!SrcP && !DstP) {
       PatternsToMatch.push_back(P);
       continue;

utils/TableGen/CodeGenDAGPatterns.h

@@ -1103,15 +1103,6 @@ public:
 /// PatternToMatch - Used by CodeGenDAGPatterns to keep tab of patterns
 /// processed to produce isel.
 class PatternToMatch {
-public:
-  PatternToMatch(Record *srcrecord, std::vector<Predicate> preds,
-                 TreePatternNodePtr src, TreePatternNodePtr dst,
-                 std::vector<Record *> dstregs, int complexity,
-                 unsigned uid, unsigned setmode = 0)
-      : SrcRecord(srcrecord), SrcPattern(src), DstPattern(dst),
-        Predicates(std::move(preds)), Dstregs(std::move(dstregs)),
-        AddedComplexity(complexity), ID(uid), ForceMode(setmode) {}
-
   Record          *SrcRecord;   // Originating Record for the pattern.
   TreePatternNodePtr SrcPattern;      // Source pattern to match.
   TreePatternNodePtr DstPattern;      // Resulting pattern.
@@ -1122,6 +1113,15 @@ public:
   unsigned         ID;          // Unique ID for the record.
   unsigned         ForceMode;   // Force this mode in type inference when set.
 
+public:
+  PatternToMatch(Record *srcrecord, std::vector<Predicate> preds,
+                 TreePatternNodePtr src, TreePatternNodePtr dst,
+                 std::vector<Record *> dstregs, int complexity,
+                 unsigned uid, unsigned setmode = 0)
+      : SrcRecord(srcrecord), SrcPattern(src), DstPattern(dst),
+        Predicates(std::move(preds)), Dstregs(std::move(dstregs)),
+        AddedComplexity(complexity), ID(uid), ForceMode(setmode) {}
+
   Record          *getSrcRecord()  const { return SrcRecord; }
   TreePatternNode *getSrcPattern() const { return SrcPattern.get(); }
   TreePatternNodePtr getSrcPatternShared() const { return SrcPattern; }
@@ -1130,6 +1130,8 @@ public:
   const std::vector<Record*> &getDstRegs() const { return Dstregs; }
   int         getAddedComplexity() const { return AddedComplexity; }
   const std::vector<Predicate> &getPredicates() const { return Predicates; }
+  unsigned getID() const { return ID; }
+  unsigned getForceMode() const { return ForceMode; }
 
   std::string getPredicateCheck() const;
 

utils/TableGen/DAGISelEmitter.cpp

@@ -115,7 +115,7 @@ struct PatternSortingPredicate {
     // pattern may have been resolved into multiple match patterns due to
     // alternative fragments.  To ensure deterministic output, always use
     // std::stable_sort with this predicate.
-    return LHS->ID < RHS->ID;
+    return LHS->getID() < RHS->getID();
   }
 };
 } // End anonymous namespace

utils/TableGen/DAGISelMatcherGen.cpp

@@ -163,7 +163,7 @@ MatcherGen::MatcherGen(const PatternToMatch &pattern,
   PatWithNoTypes->RemoveAllTypes();
 
   // If there are types that are manifestly known, infer them.
-  InferPossibleTypes(Pattern.ForceMode);
+  InferPossibleTypes(Pattern.getForceMode());
 }
 
 /// InferPossibleTypes - As we emit the pattern, we end up generating type
@@ -576,7 +576,7 @@ bool MatcherGen::EmitMatcherCode(unsigned Variant) {
 
   // Emit the matcher for the pattern structure and types.
   EmitMatchCode(Pattern.getSrcPattern(), PatWithNoTypes.get(),
-                Pattern.ForceMode);
+                Pattern.getForceMode());
 
   // If the pattern has a predicate on it (e.g. only enabled when a subtarget
   // feature is around, do the check).