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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
//===-- AMDGPUISelLowering.h - AMDGPU Lowering Interface --------*- 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 interface defintiion of the TargetLowering class
// that is common to all AMD GPUs.
//
//===----------------------------------------------------------------------===//
#ifndef AMDGPUISELLOWERING_H
#define AMDGPUISELLOWERING_H
#include "llvm/Target/TargetLowering.h"
namespace llvm {
class MachineRegisterInfo;
class AMDGPUTargetLowering : public TargetLowering
{
private:
SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerUDIVREM(SDValue Op, SelectionDAG &DAG) const;
protected:
/// CreateLiveInRegister - Helper function that adds Reg to the LiveIn list
/// of the DAG's MachineFunction. This returns a Register SDNode representing
/// Reg.
SDValue CreateLiveInRegister(SelectionDAG &DAG, const TargetRegisterClass *RC,
unsigned Reg, EVT VT) const;
bool isHWTrueValue(SDValue Op) const;
bool isHWFalseValue(SDValue Op) const;
public:
AMDGPUTargetLowering(TargetMachine &TM);
virtual SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
DebugLoc DL, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const;
virtual SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
DebugLoc DL, SelectionDAG &DAG) const;
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerIntrinsicIABS(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerIntrinsicLRP(SDValue Op, SelectionDAG &DAG) const;
virtual const char* getTargetNodeName(unsigned Opcode) const;
// Functions defined in AMDILISelLowering.cpp
public:
/// computeMaskedBitsForTargetNode - Determine which of the bits specified
/// in Mask are known to be either zero or one and return them in the
/// KnownZero/KnownOne bitsets.
virtual void computeMaskedBitsForTargetNode(const SDValue Op,
APInt &KnownZero,
APInt &KnownOne,
const SelectionDAG &DAG,
unsigned Depth = 0) const;
virtual bool getTgtMemIntrinsic(IntrinsicInfo &Info,
const CallInst &I, unsigned Intrinsic) const;
/// isFPImmLegal - We want to mark f32/f64 floating point values as legal.
bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
/// ShouldShrinkFPConstant - We don't want to shrink f64/f32 constants.
bool ShouldShrinkFPConstant(EVT VT) const;
private:
void InitAMDILLowering();
SDValue LowerSREM(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSREM8(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSREM16(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSREM32(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSREM64(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSDIV(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSDIV24(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSDIV32(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSDIV64(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSIGN_EXTEND_INREG(SDValue Op, SelectionDAG &DAG) const;
EVT genIntType(uint32_t size = 32, uint32_t numEle = 1) const;
SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFP_ROUND(SDValue Op, SelectionDAG &DAG) const;
};
namespace AMDGPUISD
{
enum
{
// AMDIL ISD Opcodes
FIRST_NUMBER = ISD::BUILTIN_OP_END,
MAD, // 32bit Fused Multiply Add instruction
VBUILD, // scalar to vector mov instruction
CALL, // Function call based on a single integer
UMUL, // 32bit unsigned multiplication
DIV_INF, // Divide with infinity returned on zero divisor
RET_FLAG,
BRANCH_COND,
// End AMDIL ISD Opcodes
BITALIGN,
FRACT,
FMAX,
SMAX,
UMAX,
FMIN,
SMIN,
UMIN,
URECIP,
LAST_AMDGPU_ISD_NUMBER
};
} // End namespace AMDGPUISD
namespace SIISD {
enum {
SI_FIRST = AMDGPUISD::LAST_AMDGPU_ISD_NUMBER,
VCC_AND,
VCC_BITCAST
};
} // End namespace SIISD
} // End namespace llvm
#endif // AMDGPUISELLOWERING_H
|
