1 files changed, 53 insertions, 0 deletions
diff --git a/lib/Target/PTX/PTXISelDAGToDAG.cpp b/lib/Target/PTX/PTXISelDAGToDAG.cpp
new file mode 100644
index 0000000..da91365
--- /dev/null
+++ b/lib/Target/PTX/PTXISelDAGToDAG.cpp
@@ -0,0 +1,53 @@
+//===-- PTXISelDAGToDAG.cpp - A dag to dag inst selector for PTX ----------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines an instruction selector for the PTX target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PTX.h"
+#include "PTXTargetMachine.h"
+#include "llvm/CodeGen/SelectionDAGISel.h"
+
+using namespace llvm;
+
+namespace {
+// PTXDAGToDAGISel - PTX specific code to select PTX machine
+// instructions for SelectionDAG operations.
+class PTXDAGToDAGISel : public SelectionDAGISel {
+  public:
+    PTXDAGToDAGISel(PTXTargetMachine &TM, CodeGenOpt::Level OptLevel);
+
+    virtual const char *getPassName() const {
+      return "PTX DAG->DAG Pattern Instruction Selection";
+    }
+
+    SDNode *Select(SDNode *Node);
+
+    // Include the pieces auto'gened from the target description
+#include "PTXGenDAGISel.inc"
+
+}; // class PTXDAGToDAGISel
+} // namespace
+
+// createPTXISelDag - This pass converts a legalized DAG into a
+// PTX-specific DAG, ready for instruction scheduling
+FunctionPass *llvm::createPTXISelDag(PTXTargetMachine &TM,
+                                     CodeGenOpt::Level OptLevel) {
+  return new PTXDAGToDAGISel(TM, OptLevel);
+}
+
+PTXDAGToDAGISel::PTXDAGToDAGISel(PTXTargetMachine &TM,
+                                 CodeGenOpt::Level OptLevel)
+  : SelectionDAGISel(TM, OptLevel) {}
+
+SDNode *PTXDAGToDAGISel::Select(SDNode *Node) {
+  // SelectCode() is auto'gened
+  return SelectCode(Node);
+}