[AVX] Make Inits Foldable

[oota-llvm.git] / utils / TableGen / CodeGenDAGPatterns.h

diff --git a/utils/TableGen/CodeGenDAGPatterns.h b/utils/TableGen/CodeGenDAGPatterns.h
index b113a59e4a94547178d96e4a5f9b4f777a7cd5d8..f517219ee7e81de8c6929612a8a52dc05fd965eb 100644 (file)
--- a/utils/TableGen/CodeGenDAGPatterns.h
+++ b/utils/TableGen/CodeGenDAGPatterns.h
@@ -257,6 +257,17 @@ public:
   /// isAlwaysTrue - Return true if this is a noop predicate.
   bool isAlwaysTrue() const;
   
+  bool isImmediatePattern() const { return !getImmCode().empty(); }
+  
+  /// getImmediatePredicateCode - Return the code that evaluates this pattern if
+  /// this is an immediate predicate.  It is an error to call this on a
+  /// non-immediate pattern.
+  std::string getImmediatePredicateCode() const {
+    std::string Result = getImmCode();
+    assert(!Result.empty() && "Isn't an immediate pattern!");
+    return Result;
+  }
+  
   
   bool operator==(const TreePredicateFn &RHS) const {
     return PatFragRec == RHS.PatFragRec;
@@ -295,7 +306,7 @@ class TreePatternNode {
 
   /// Val - The init value (e.g. the "GPRC" record, or "7") for a leaf.
   ///
-  Init *Val;
+  const Init *Val;
 
   /// Name - The name given to this node with the :$foo notation.
   ///
@@ -316,7 +327,7 @@ public:
     : Operator(Op), Val(0), TransformFn(0), Children(Ch) {
     Types.resize(NumResults);
   }
-  TreePatternNode(Init *val, unsigned NumResults)    // leaf ctor
+  TreePatternNode(const Init *val, unsigned NumResults)    // leaf ctor
     : Operator(0), Val(val), TransformFn(0) {
     Types.resize(NumResults);
   }
@@ -347,7 +358,7 @@ public:
     return Types[ResNo].isDynamicallyResolved();
   }
 
-  Init *getLeafValue() const { assert(isLeaf()); return Val; }
+  const Init *getLeafValue() const { assert(isLeaf()); return Val; }
   Record *getOperator() const { assert(!isLeaf()); return Operator; }
 
   unsigned getNumChildren() const { return Children.size(); }
@@ -506,9 +517,9 @@ public:
 
   /// TreePattern constructor - Parse the specified DagInits into the
   /// current record.
-  TreePattern(Record *TheRec, ListInit *RawPat, bool isInput,
+  TreePattern(Record *TheRec, const ListInit *RawPat, bool isInput,
               CodeGenDAGPatterns &ise);
-  TreePattern(Record *TheRec, DagInit *Pat, bool isInput,
+  TreePattern(Record *TheRec, const DagInit *Pat, bool isInput,
               CodeGenDAGPatterns &ise);
   TreePattern(Record *TheRec, TreePatternNode *Pat, bool isInput,
               CodeGenDAGPatterns &ise);
@@ -565,7 +576,7 @@ public:
   void dump() const;
 
 private:
-  TreePatternNode *ParseTreePattern(Init *DI, StringRef OpName);
+  TreePatternNode *ParseTreePattern(const Init *DI, StringRef OpName);
   void ComputeNamedNodes();
   void ComputeNamedNodes(TreePatternNode *N);
 };
@@ -620,7 +631,7 @@ public:
 /// processed to produce isel.
 class PatternToMatch {
 public:
-  PatternToMatch(Record *srcrecord, ListInit *preds,
+  PatternToMatch(Record *srcrecord, const ListInit *preds,
                  TreePatternNode *src, TreePatternNode *dst,
                  const std::vector<Record*> &dstregs,
                  unsigned complexity, unsigned uid)
@@ -628,7 +639,7 @@ public:
       Dstregs(dstregs), AddedComplexity(complexity), ID(uid) {}
 
   Record          *SrcRecord;   // Originating Record for the pattern.
-  ListInit        *Predicates;  // Top level predicate conditions to match.
+  const ListInit  *Predicates;  // Top level predicate conditions to match.
   TreePatternNode *SrcPattern;  // Source pattern to match.
   TreePatternNode *DstPattern;  // Resulting pattern.
   std::vector<Record*> Dstregs; // Physical register defs being matched.
@@ -636,7 +647,7 @@ public:
   unsigned         ID;          // Unique ID for the record.
 
   Record          *getSrcRecord()  const { return SrcRecord; }
-  ListInit        *getPredicates() const { return Predicates; }
+  const ListInit  *getPredicates() const { return Predicates; }
   TreePatternNode *getSrcPattern() const { return SrcPattern; }
   TreePatternNode *getDstPattern() const { return DstPattern; }
   const std::vector<Record*> &getDstRegs() const { return Dstregs; }