blob: 3ca71f00b241d24bb0b7ba9f14c044a9904f9393 (
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
//===- HexagonMCInst.h - Hexagon sub-class of MCInst ----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class extends MCInst to allow some VLIW annotations.
//
//===----------------------------------------------------------------------===//
#ifndef HEXAGONMCINST_H
#define HEXAGONMCINST_H
#include "HexagonTargetMachine.h"
#include "llvm/MC/MCInst.h"
namespace llvm {
class MCOperand;
class HexagonMCInst: public MCInst {
// MCID is set during instruction lowering.
// It is needed in order to access TSFlags for
// use in checking MC instruction properties.
const MCInstrDesc *MCID;
// Packet start and end markers
unsigned packetStart: 1, packetEnd: 1;
public:
explicit HexagonMCInst():
MCInst(), MCID(0), packetStart(0), packetEnd(0) {};
HexagonMCInst(const MCInstrDesc& mcid):
MCInst(), MCID(&mcid), packetStart(0), packetEnd(0) {};
bool isPacketStart() const { return (packetStart); };
bool isPacketEnd() const { return (packetEnd); };
void setPacketStart(bool Y) { packetStart = Y; };
void setPacketEnd(bool Y) { packetEnd = Y; };
void resetPacket() { setPacketStart(false); setPacketEnd(false); };
// Return the slots used by the insn.
unsigned getUnits(const HexagonTargetMachine* TM) const;
// Return the Hexagon ISA class for the insn.
unsigned getType() const;
void setDesc(const MCInstrDesc& mcid) { MCID = &mcid; };
const MCInstrDesc& getDesc(void) const { return *MCID; };
// Return whether the insn is an actual insn.
bool isCanon() const;
// Return whether the insn is a prefix.
bool isPrefix() const;
// Return whether the insn is solo, i.e., cannot be in a packet.
bool isSolo() const;
// Return whether the instruction needs to be constant extended.
bool isConstExtended() const;
// Return constant extended operand number.
unsigned short getCExtOpNum(void) const;
// Return whether the insn is a new-value consumer.
bool isNewValue() const;
// Return whether the instruction is a legal new-value producer.
bool hasNewValue() const;
// Return the operand that consumes or produces a new value.
const MCOperand& getNewValue() const;
// Return number of bits in the constant extended operand.
unsigned getBitCount(void) const;
private:
// Return whether the instruction must be always extended.
bool isExtended() const;
// Return true if the insn may be extended based on the operand value.
bool isExtendable() const;
// Return true if the operand can be constant extended.
bool isOperandExtended(const unsigned short OperandNum) const;
// Return the min value that a constant extendable operand can have
// without being extended.
int getMinValue() const;
// Return the max value that a constant extendable operand can have
// without being extended.
int getMaxValue() const;
};
}
#endif
|
