1 files changed, 92 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMConstantPoolValue.h b/lib/Target/ARM/ARMConstantPoolValue.h
new file mode 100644
index 0000000000000..d2b9066dcc97c
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+++ b/lib/Target/ARM/ARMConstantPoolValue.h
@@ -0,0 +1,92 @@
+//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the ARM specific constantpool value class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_ARM_CONSTANTPOOLVALUE_H
+#define LLVM_TARGET_ARM_CONSTANTPOOLVALUE_H
+
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include <iosfwd>
+
+namespace llvm {
+
+class GlobalValue;
+
+namespace ARMCP {
+  enum ARMCPKind {
+    CPValue,
+    CPNonLazyPtr,
+    CPStub
+  };
+}
+
+/// ARMConstantPoolValue - ARM specific constantpool value. This is used to
+/// represent PC relative displacement between the address of the load
+/// instruction and the global value being loaded, i.e. (&GV-(LPIC+8)).
+class ARMConstantPoolValue : public MachineConstantPoolValue {
+  GlobalValue *GV;         // GlobalValue being loaded.
+  const char *S;           // ExtSymbol being loaded.
+  unsigned LabelId;        // Label id of the load.
+  ARMCP::ARMCPKind Kind;   // non_lazy_ptr or stub?
+  unsigned char PCAdjust;  // Extra adjustment if constantpool is pc relative.
+                           // 8 for ARM, 4 for Thumb.
+  const char *Modifier;    // GV modifier i.e. (&GV(modifier)-(LPIC+8))
+  bool AddCurrentAddress;
+
+public:
+  ARMConstantPoolValue(GlobalValue *gv, unsigned id,
+                       ARMCP::ARMCPKind Kind = ARMCP::CPValue,
+                       unsigned char PCAdj = 0, const char *Modifier = NULL,
+                       bool AddCurrentAddress = false);
+  ARMConstantPoolValue(const char *s, unsigned id,
+                       ARMCP::ARMCPKind Kind = ARMCP::CPValue,
+                       unsigned char PCAdj = 0, const char *Modifier = NULL,
+                       bool AddCurrentAddress = false);
+  ARMConstantPoolValue(GlobalValue *GV, ARMCP::ARMCPKind Kind,
+                       const char *Modifier);
+
+
+  GlobalValue *getGV() const { return GV; }
+  const char *getSymbol() const { return S; }
+  const char *getModifier() const { return Modifier; }
+  bool hasModifier() const { return Modifier != NULL; }
+  bool mustAddCurrentAddress() const { return AddCurrentAddress; }
+  unsigned getLabelId() const { return LabelId; }
+  bool isNonLazyPointer() const { return Kind == ARMCP::CPNonLazyPtr; }
+  bool isStub() const { return Kind == ARMCP::CPStub; }
+  unsigned char getPCAdjustment() const { return PCAdjust; }
+
+  virtual int getExistingMachineCPValue(MachineConstantPool *CP,
+                                        unsigned Alignment);
+
+  virtual void AddSelectionDAGCSEId(FoldingSetNodeID &ID);
+
+  void print(std::ostream *O) const { if (O) print(*O); }
+  void print(std::ostream &O) const;
+  void print(raw_ostream *O) const { if (O) print(*O); }
+  void print(raw_ostream &O) const;
+  void dump() const;
+};
+
+  inline std::ostream &operator<<(std::ostream &O, const ARMConstantPoolValue &V) {
+  V.print(O);
+  return O;
+}
+  
+inline raw_ostream &operator<<(raw_ostream &O, const ARMConstantPoolValue &V) {
+  V.print(O);
+  return O;
+}
+
+} // End llvm namespace
+
+#endif