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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
#include "storage.h"
#include "pipe/tgsi/exec/tgsi_token.h"
#include <llvm/BasicBlock.h>
#include <llvm/Module.h>
#include <llvm/Value.h>
#include <llvm/CallingConv.h>
#include <llvm/Constants.h>
#include <llvm/DerivedTypes.h>
#include <llvm/InstrTypes.h>
#include <llvm/Instructions.h>
using namespace llvm;
Storage::Storage(llvm::BasicBlock *block, llvm::Value *out,
llvm::Value *in, llvm::Value *consts)
: m_block(block), m_OUT(out),
m_IN(in), m_CONST(consts),
m_temps(32), m_dstCache(32),
m_idx(0)
{
m_floatVecType = VectorType::get(Type::FloatTy, 4);
m_intVecType = VectorType::get(IntegerType::get(32), 4);
m_undefFloatVec = UndefValue::get(m_floatVecType);
m_undefIntVec = UndefValue::get(m_intVecType);
m_shuffleId = 0;
m_numConsts = 0;
}
//can only build vectors with all members in the [0, 9] range
llvm::Constant *Storage::shuffleMask(int vec)
{
if (m_intVecs.find(vec) != m_intVecs.end()) {
return m_intVecs[vec];
}
int origVec = vec;
Constant* const_vec = 0;
if (origVec == 0) {
const_vec = Constant::getNullValue(m_intVecType);
} else {
int x = vec / 1000; vec -= x * 1000;
int y = vec / 100; vec -= y * 100;
int z = vec / 10; vec -= z * 10;
int w = vec;
std::vector<Constant*> elems;
elems.push_back(constantInt(x));
elems.push_back(constantInt(y));
elems.push_back(constantInt(z));
elems.push_back(constantInt(w));
const_vec = ConstantVector::get(m_intVecType, elems);
}
m_intVecs[origVec] = const_vec;
return const_vec;
}
llvm::ConstantInt *Storage::constantInt(int idx)
{
if (m_constInts.find(idx) != m_constInts.end()) {
return m_constInts[idx];
}
ConstantInt *const_int = ConstantInt::get(APInt(32, idx));
m_constInts[idx] = const_int;
return const_int;
}
llvm::Value *Storage::inputElement(int idx)
{
if (m_inputs.find(idx) != m_inputs.end()) {
return m_inputs[idx];
}
GetElementPtrInst *getElem = new GetElementPtrInst(m_IN,
constantInt(idx),
name("input_ptr"),
m_block);
LoadInst *load = new LoadInst(getElem, name("input"),
false, m_block);
m_inputs[idx] = load;
return load;
}
llvm::Value *Storage::constElement(int idx)
{
m_numConsts = ((idx + 1) > m_numConsts) ? (idx + 1) : m_numConsts;
if (m_consts.find(idx) != m_consts.end()) {
return m_consts[idx];
}
char ptrName[13];
char name[9];
snprintf(ptrName, 13, "const_ptr%d", idx);
snprintf(name, 9, "const%d", idx);
GetElementPtrInst *getElem = new GetElementPtrInst(m_CONST,
constantInt(idx),
ptrName,
m_block);
LoadInst *load = new LoadInst(getElem, name,
false, m_block);
m_consts[idx] = load;
return load;
}
llvm::Value *Storage::shuffleVector(llvm::Value *vec, int shuffle)
{
Constant *mask = shuffleMask(shuffle);
++m_shuffleId;
char name[11];
snprintf(name, 11, "shuffle%d", m_shuffleId);
ShuffleVectorInst *res =
new ShuffleVectorInst(vec, m_undefFloatVec, mask,
name, m_block);
return res;
}
llvm::Value *Storage::tempElement(int idx) const
{
Value *ret = m_temps[idx];
if (!ret)
return m_undefFloatVec;
return ret;
}
void Storage::setTempElement(int idx, llvm::Value *val, int mask)
{
if (mask != TGSI_WRITEMASK_XYZW) {
llvm::Value *templ = m_temps[idx];
val = maskWrite(val, mask, templ);
}
m_temps[idx] = val;
}
void Storage::store(int dstIdx, llvm::Value *val, int mask)
{
if (mask != TGSI_WRITEMASK_XYZW) {
llvm::Value *templ = m_dstCache[dstIdx];
val = maskWrite(val, mask, templ);
}
GetElementPtrInst *getElem = new GetElementPtrInst(m_OUT,
constantInt(dstIdx),
name("out_ptr"),
m_block);
StoreInst *st = new StoreInst(val, getElem, false, m_block);
//m_dstCache[dstIdx] = st;
}
llvm::Value *Storage::maskWrite(llvm::Value *src, int mask, llvm::Value *templ)
{
llvm::Value *dst = templ;
if (!dst)
dst = Constant::getNullValue(m_floatVecType);
if ((mask & TGSI_WRITEMASK_X)) {
llvm::Value *x = new ExtractElementInst(src, unsigned(0),
name("x"), m_block);
dst = new InsertElementInst(dst, x, unsigned(0),
name("dstx"), m_block);
}
if ((mask & TGSI_WRITEMASK_Y)) {
llvm::Value *y = new ExtractElementInst(src, unsigned(1),
name("y"), m_block);
dst = new InsertElementInst(dst, y, unsigned(1),
name("dsty"), m_block);
}
if ((mask & TGSI_WRITEMASK_Z)) {
llvm::Value *z = new ExtractElementInst(src, unsigned(2),
name("z"), m_block);
dst = new InsertElementInst(dst, z, unsigned(2),
name("dstz"), m_block);
}
if ((mask & TGSI_WRITEMASK_W)) {
llvm::Value *w = new ExtractElementInst(src, unsigned(3),
name("w"), m_block);
dst = new InsertElementInst(dst, w, unsigned(3),
name("dstw"), m_block);
}
return dst;
}
const char * Storage::name(const char *prefix)
{
++m_idx;
snprintf(m_name, 32, "%s%d", prefix, m_idx);
return m_name;
}
int Storage::numConsts() const
{
return m_numConsts;
}
|
