More of the Cell SPU code drop from "Team Aerospace".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44582 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/Target/CellSPU/SPUHazardRecognizers.h b/lib/Target/CellSPU/SPUHazardRecognizers.h
new file mode 100644
index 0000000..ce602fd
--- /dev/null
+++ b/lib/Target/CellSPU/SPUHazardRecognizers.h
@@ -0,0 +1,43 @@
+//===-- SPUHazardRecognizers.h - Cell SPU Hazard Recognizer -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by a team from the Computer Systems Research
+// Department at The Aerospace Corporation.
+//
+// See README.txt for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines hazard recognizers for scheduling on the Cell SPU
+// processor.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SPUHAZRECS_H
+#define SPUHAZRECS_H
+
+#include "llvm/CodeGen/ScheduleDAG.h"
+#include "SPUInstrInfo.h"
+
+namespace llvm {
+  
+/// SPUHazardRecognizer
+class SPUHazardRecognizer : public HazardRecognizer
+{
+private:
+  const TargetInstrInfo &TII;
+  int EvenOdd;
+
+public:
+  SPUHazardRecognizer(const TargetInstrInfo &TII);
+  virtual HazardType getHazardType(SDNode *Node);
+  virtual void EmitInstruction(SDNode *Node);
+  virtual void AdvanceCycle();
+  virtual void EmitNoop();
+};
+
+} // end namespace llvm
+
+#endif
+