Cache TargetLowering on SelectionDAGISel and update previous

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

diff --git a/include/llvm/CodeGen/SelectionDAGISel.h b/include/llvm/CodeGen/SelectionDAGISel.h
index 315cddc995eb1e6d5efe3d0cab43aa84777c24d3..2639402d2ed1c4361443229c59cb02203f082f8d 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAGISel.h
+++ b/include/llvm/CodeGen/SelectionDAGISel.h
@@ -18,6 +18,7 @@
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/IR/BasicBlock.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include "llvm/Pass.h"
 
 namespace llvm {
@@ -50,15 +51,16 @@ public:
   AliasAnalysis *AA;
   GCFunctionInfo *GFI;
   CodeGenOpt::Level OptLevel;
+  const TargetInstrInfo *TII;
+  const TargetLowering *TLI;
+
   static char ID;
 
   explicit SelectionDAGISel(TargetMachine &tm,
                             CodeGenOpt::Level OL = CodeGenOpt::Default);
   virtual ~SelectionDAGISel();
 
-  const TargetLowering *getTargetLowering() const {
-    return TM.getTargetLowering();
-  }
+  const TargetLowering *getTargetLowering() const { return TLI; }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override;
 
@@ -238,10 +240,18 @@ public:
                            const unsigned char *MatcherTable,
                            unsigned TableSize);
 
+  /// \brief Return true if complex patterns for this target can mutate the
+  /// DAG.
+  virtual bool ComplexPatternFuncMutatesDAG() const {
+    return false;
+  }
+
 private:
 
   // Calls to these functions are generated by tblgen.
   SDNode *Select_INLINEASM(SDNode *N);
+  SDNode *Select_READ_REGISTER(SDNode *N);
+  SDNode *Select_WRITE_REGISTER(SDNode *N);
   SDNode *Select_UNDEF(SDNode *N);
   void CannotYetSelect(SDNode *N);