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
|
//===-- HexagonVarargsCallingConvention.h - Calling Conventions -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the functions that assign locations to outgoing function
// arguments. Adapted from the target independent version but this handles
// calls to varargs functions
//
//===----------------------------------------------------------------------===//
//
static bool RetCC_Hexagon32_VarArgs(unsigned ValNo, EVT ValVT,
EVT LocVT, CCValAssign::LocInfo LocInfo,
ISD::ArgFlagsTy ArgFlags,
Hexagon_CCState &State,
int NonVarArgsParams,
int CurrentParam,
bool ForceMem);
static bool CC_Hexagon32_VarArgs(unsigned ValNo, EVT ValVT,
EVT LocVT, CCValAssign::LocInfo LocInfo,
ISD::ArgFlagsTy ArgFlags,
Hexagon_CCState &State,
int NonVarArgsParams,
int CurrentParam,
bool ForceMem) {
unsigned ByValSize = 0;
if (ArgFlags.isByVal() &&
((ByValSize = ArgFlags.getByValSize()) >
(MVT(MVT::i64).getSizeInBits() / 8))) {
ForceMem = true;
}
// Only assign registers for named (non varargs) arguments
if ( !ForceMem && ((NonVarArgsParams == -1) || (CurrentParam <=
NonVarArgsParams))) {
if (LocVT == MVT::i32 ||
LocVT == MVT::i16 ||
LocVT == MVT::i8 ||
LocVT == MVT::f32) {
static const unsigned RegList1[] = {
Hexagon::R0, Hexagon::R1, Hexagon::R2, Hexagon::R3, Hexagon::R4,
Hexagon::R5
};
if (unsigned Reg = State.AllocateReg(RegList1, 6)) {
State.addLoc(CCValAssign::getReg(ValNo, ValVT.getSimpleVT(), Reg,
LocVT.getSimpleVT(), LocInfo));
return false;
}
}
if (LocVT == MVT::i64 ||
LocVT == MVT::f64) {
static const unsigned RegList2[] = {
Hexagon::D0, Hexagon::D1, Hexagon::D2
};
if (unsigned Reg = State.AllocateReg(RegList2, 3)) {
State.addLoc(CCValAssign::getReg(ValNo, ValVT.getSimpleVT(), Reg,
LocVT.getSimpleVT(), LocInfo));
return false;
}
}
}
const Type* ArgTy = LocVT.getTypeForEVT(State.getContext());
unsigned Alignment =
State.getTarget().getDataLayout()->getABITypeAlignment(ArgTy);
unsigned Size =
State.getTarget().getDataLayout()->getTypeSizeInBits(ArgTy) / 8;
// If it's passed by value, then we need the size of the aggregate not of
// the pointer.
if (ArgFlags.isByVal()) {
Size = ByValSize;
// Hexagon_TODO: Get the alignment of the contained type here.
Alignment = 8;
}
unsigned Offset3 = State.AllocateStack(Size, Alignment);
State.addLoc(CCValAssign::getMem(ValNo, ValVT.getSimpleVT(), Offset3,
LocVT.getSimpleVT(), LocInfo));
return false;
}
static bool RetCC_Hexagon32_VarArgs(unsigned ValNo, EVT ValVT,
EVT LocVT, CCValAssign::LocInfo LocInfo,
ISD::ArgFlagsTy ArgFlags,
Hexagon_CCState &State,
int NonVarArgsParams,
int CurrentParam,
bool ForceMem) {
if (LocVT == MVT::i32 ||
LocVT == MVT::f32) {
static const unsigned RegList1[] = {
Hexagon::R0, Hexagon::R1, Hexagon::R2, Hexagon::R3, Hexagon::R4,
Hexagon::R5
};
if (unsigned Reg = State.AllocateReg(RegList1, 6)) {
State.addLoc(CCValAssign::getReg(ValNo, ValVT.getSimpleVT(), Reg,
LocVT.getSimpleVT(), LocInfo));
return false;
}
}
if (LocVT == MVT::i64 ||
LocVT == MVT::f64) {
static const unsigned RegList2[] = {
Hexagon::D0, Hexagon::D1, Hexagon::D2
};
if (unsigned Reg = State.AllocateReg(RegList2, 3)) {
State.addLoc(CCValAssign::getReg(ValNo, ValVT.getSimpleVT(), Reg,
LocVT.getSimpleVT(), LocInfo));
return false;
}
}
const Type* ArgTy = LocVT.getTypeForEVT(State.getContext());
unsigned Alignment =
State.getTarget().getDataLayout()->getABITypeAlignment(ArgTy);
unsigned Size =
State.getTarget().getDataLayout()->getTypeSizeInBits(ArgTy) / 8;
unsigned Offset3 = State.AllocateStack(Size, Alignment);
State.addLoc(CCValAssign::getMem(ValNo, ValVT.getSimpleVT(), Offset3,
LocVT.getSimpleVT(), LocInfo));
return false;
}
|
