Initial support for carrying MachineInstrs in SUnits.

[oota-llvm.git] / include / llvm / CodeGen / SelectionDAG.h

diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index a6f9c1beed95ade16d70b6407e5730751bfbaa9e..62dc77af5245e69cfc67d7e4ad7a08cdf263e5a9 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -16,6 +16,7 @@
 #define LLVM_CODEGEN_SELECTIONDAG_H
 
 #include "llvm/ADT/ilist.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"
@@ -102,6 +103,12 @@ class SelectionDAG {
   /// VerifyNode - Sanity check the given node.  Aborts if it is invalid.
   void VerifyNode(SDNode *N);
 
+  /// setGraphColorHelper - Implementation of setSubgraphColor.
+  /// Return whether we had to truncate the search.
+  ///
+  bool setSubgraphColorHelper(SDNode *N, const char *Color, DenseSet<SDNode *> &visited,
+                              int level, bool &printed);
+
 public:
   SelectionDAG(TargetLowering &tli, FunctionLoweringInfo &fli);
   ~SelectionDAG();
@@ -147,6 +154,10 @@ public:
   ///
   void setGraphColor(const SDNode *N, const char *Color);
 
+  /// setGraphColor - Convenience for setting subgraph color attribute.
+  ///
+  void setSubgraphColor(SDNode *N, const char *Color);
+
   typedef ilist<SDNode>::const_iterator allnodes_const_iterator;
   allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); }
   allnodes_const_iterator allnodes_end() const { return AllNodes.end(); }
@@ -332,6 +343,11 @@ public:
 
   SDValue getCondCode(ISD::CondCode Cond);
 
+  /// Returns the ConvertRndSat Note: Avoid using this node because it may
+  /// disappear in the future and most targets don't support it.
+  SDValue getConvertRndSat(MVT VT, SDValue Val, SDValue DTy, SDValue STy,
+                           SDValue Rnd, SDValue Sat, ISD::CvtCode Code);
+
   /// getZeroExtendInReg - Return the expression required to zero extend the Op
   /// value assuming it was the smaller SrcTy value.
   SDValue getZeroExtendInReg(SDValue Op, MVT SrcTy);
@@ -682,6 +698,13 @@ public:
   /// topological order. Returns the number of nodes.
   unsigned AssignTopologicalOrder();
 
+  /// RepositionNode - Move node N in the AllNodes list to be immediately
+  /// before the given iterator Position. This may be used to update the
+  /// topological ordering when the list of nodes is modified.
+  void RepositionNode(allnodes_iterator Position, SDNode *N) {
+    AllNodes.insert(Position, AllNodes.remove(N));
+  }
+
   /// isCommutativeBinOp - Returns true if the opcode is a commutative binary
   /// operation.
   static bool isCommutativeBinOp(unsigned Opcode) {