blob: a614bec60fec83e4778592814a3eb5ea38b41af7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
//===- 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 {
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.
public:
ARMConstantPoolValue(GlobalValue *gv, unsigned id,
ARMCP::ARMCPKind Kind = ARMCP::CPValue,
unsigned char PCAdj = 0);
ARMConstantPoolValue(const char *s, unsigned id,
ARMCP::ARMCPKind Kind = ARMCP::CPValue,
unsigned char PCAdj = 0);
GlobalValue *getGV() const { return GV; }
const char *getSymbol() const { return S; }
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);
virtual void print(std::ostream &O) const;
};
}
#endif
|
