1 files changed, 66 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsModuleISelDAGToDAG.h b/lib/Target/Mips/MipsModuleISelDAGToDAG.h
new file mode 100644
index 0000000000000..fda35ae288bbe
--- /dev/null
+++ b/lib/Target/Mips/MipsModuleISelDAGToDAG.h
@@ -0,0 +1,66 @@
+//===---- MipsModuleISelDAGToDAG.h -  Change Subtarget             --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a pass used to change the subtarget for the
+// Mips Instruction selector.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSMODULEISELDAGTODAG_H
+#define MIPSMODULEISELDAGTODAG_H
+
+#include "Mips.h"
+#include "MipsSubtarget.h"
+#include "MipsTargetMachine.h"
+#include "llvm/CodeGen/SelectionDAGISel.h"
+
+
+//===----------------------------------------------------------------------===//
+// Instruction Selector Implementation
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// MipsModuleDAGToDAGISel - MIPS specific code to select MIPS machine
+// instructions for SelectionDAG operations.
+//===----------------------------------------------------------------------===//
+namespace llvm {
+
+class MipsModuleDAGToDAGISel : public MachineFunctionPass {
+public:
+
+  static char ID;
+
+  explicit MipsModuleDAGToDAGISel(MipsTargetMachine &TM_)
+    : MachineFunctionPass(ID),
+      TM(TM_), Subtarget(TM.getSubtarget<MipsSubtarget>()) {}
+
+  // Pass Name
+  virtual const char *getPassName() const {
+    return "MIPS DAG->DAG Pattern Instruction Selection";
+  }
+
+  virtual bool runOnMachineFunction(MachineFunction &MF);
+
+  virtual SDNode *Select(SDNode *N) {
+    llvm_unreachable("unexpected");
+  }
+
+protected:
+  /// Keep a pointer to the MipsSubtarget around so that we can make the right
+  /// decision when generating code for different targets.
+  const TargetMachine &TM;
+  const MipsSubtarget &Subtarget;
+};
+
+/// createMipsISelDag - This pass converts a legalized DAG into a
+/// MIPS-specific DAG, ready for instruction scheduling.
+FunctionPass *createMipsModuleISelDag(MipsTargetMachine &TM);
+}
+
+#endif