Hexagon backend support

llvm-svn: 146412

1 files changed, 68 insertions, 0 deletions

diff --git a/llvm/lib/Target/Hexagon/Hexagon.h b/llvm/lib/Target/Hexagon/Hexagon.h
new file mode 100644
index 00000000000..ced3e9f8469
--- /dev/null
+++ b/llvm/lib/Target/Hexagon/Hexagon.h
@@ -0,0 +1,68 @@
+//=-- Hexagon.h - Top-level interface for Hexagon representation --*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the entry points for global functions defined in the LLVM
+// Hexagon back-end.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TARGET_Hexagon_H
+#define TARGET_Hexagon_H
+
+#include <cassert>
+#include "llvm/Target/TargetLowering.h"
+
+namespace llvm {
+  class FunctionPass;
+  class TargetMachine;
+  class HexagonTargetMachine;
+  class raw_ostream;
+
+  FunctionPass *createHexagonISelDag(HexagonTargetMachine &TM);
+  FunctionPass *createHexagonDelaySlotFillerPass(TargetMachine &TM);
+  FunctionPass *createHexagonFPMoverPass(TargetMachine &TM);
+  FunctionPass *createHexagonRemoveExtendOps(HexagonTargetMachine &TM);
+  FunctionPass *createHexagonCFGOptimizer(HexagonTargetMachine &TM);
+
+  FunctionPass* createHexagonSplitTFRCondSets(HexagonTargetMachine &TM);
+  FunctionPass* createHexagonExpandPredSpillCode(HexagonTargetMachine &TM);
+
+  FunctionPass *createHexagonHardwareLoops();
+  FunctionPass *createHexagonOptimizeSZExtends();
+  FunctionPass *createHexagonFixupHwLoops();
+
+  extern Target TheHexagonTarget;
+
+} // end namespace llvm;
+
+// Defines symbolic names for Hexagon instructions and registers.
+// This defines a mapping from register name to register number.
+//
+
+#define GET_REGINFO_ENUM
+#include "HexagonGenRegisterInfo.inc"
+
+#define GET_INSTRINFO_ENUM
+#include "HexagonGenInstrInfo.inc"
+
+#define GET_SUBTARGETINFO_ENUM
+#include "HexagonGenSubtargetInfo.inc"
+
+#define Hexagon_POINTER_SIZE 4
+
+#define Hexagon_PointerSize (Hexagon_POINTER_SIZE)
+#define Hexagon_PointerSize_Bits (Hexagon_POINTER_SIZE * 8)
+#define Hexagon_WordSize Hexagon_PointerSize
+#define Hexagon_WordSize_Bits Hexagon_PointerSize_Bits
+
+// allocframe saves LR and FP on stack before allocating
+// a new stack frame. This takes 8 bytes.
+#define HEXAGON_LRFP_SIZE 8
+
+#endif