ARM backend contribution from Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantPoolValue.h b/lib/Target/ARM/ARMConstantPoolValue.h
new file mode 100644
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+++ b/lib/Target/ARM/ARMConstantPoolValue.h
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+//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Evan Cheng and 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"
+
+namespace llvm {
+
+/// 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.
+ unsigned LabelId; // Label id of the load.
+ bool isNonLazyPtr; // True if loading a Mac OS X non_lazy_ptr stub.
+ unsigned char PCAdjust; // Extra adjustment if constantpool is pc relative.
+ // 8 for ARM, 4 for Thumb.
+
+public:
+ ARMConstantPoolValue(GlobalValue *gv, unsigned id, bool isNonLazy = false,
+ unsigned char PCAdj = 0);
+
+ GlobalValue *getGV() const { return GV; }
+ unsigned getLabelId() const { return LabelId; }
+ bool isNonLazyPointer() const { return isNonLazyPtr; }
+ unsigned char getPCAdjustment() const { return PCAdjust; }
+
+ virtual int getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment);
+
+ virtual void AddSelectionDAGCSEId(FoldingSetNodeID &ID);
+
+ virtual void print(std::ostream &O) const;
+};
+
+}
+
+#endif