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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2025 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; RUN: igc_opt --opaque-pointers %s -S -o - -split-structure-phis | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f80:128:128-v16:16:16-v24:32:32-v32:32:32-v48:64:64-v64:64:64-v96:128:128-v128:128:128-v192:256:256-v256:256:256-v512:512:512-v1024:1024:1024-a:64:64-f80:128:128-n8:16:32:64"
declare <64 x float> @external_func_vec64float(<64 x float>)
declare float @external_func_float(float)
declare double @external_func_double(double)
declare i16 @external_func_i16(i16)
declare <32 x i32> @external_func_vec32i32(<32 x i32>)
declare <5 x double> @external_func_vec5double(<5 x double>)
declare void @struct_use_func({ <64 x float>, <64 x float> })
declare void @vector_use_func(<64 x float>)
; This test case verifies that a phi instruction with a structure type with vectors must be split into two phis vectors.
; CHECK-LABEL: define void @f0
; ...
; CHECK: bb1:
; CHECK: [[NEWPHI1:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI2:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES2:%.*]], %bb1 ]
; CHECK: [[VRES1]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI1]])
; CHECK: [[VRES2]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI2]])
; ...
; CHECK: terminator:
; CHECK: store <64 x float> [[VRES1]], ptr %ptr1, align 256
; CHECK: store <64 x float> [[VRES2]], ptr %ptr2, align 256
define void @f0(i32 %val, ptr %ptr1, ptr %ptr2) {
entry:
br label %bb1
bb1:
%phinode = phi { <64 x float>, <64 x float> } [ zeroinitializer, %entry ], [ %insert.2, %bb1 ]
%extract.1 = extractvalue { <64 x float>, <64 x float> } %phinode, 0
%extract.2 = extractvalue { <64 x float>, <64 x float> } %phinode, 1
%vector.res.1 = call <64 x float> @external_func_vec64float(<64 x float> %extract.1)
%vector.res.2 = call <64 x float> @external_func_vec64float(<64 x float> %extract.2)
%insert.1 = insertvalue { <64 x float>, <64 x float> } poison, <64 x float> %vector.res.1, 0
%insert.2 = insertvalue { <64 x float>, <64 x float> } %insert.1, <64 x float> %vector.res.2, 1
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
store <64 x float> %vector.res.1, ptr %ptr1, align 256
store <64 x float> %vector.res.2, ptr %ptr2, align 256
ret void
}
; This test case verifies that the phi instruction with structure type with vectors and scalar is split.
; CHECK-LABEL: define void @f1
; ...
; CHECK: bb1:
; CHECK: [[NEWPHI1:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI2:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES2:%.*]], %bb1 ]
; CHECK: [[NEWPHI3:%.*]] = phi float [ 0.000000e+00, %entry ], [ [[SRES:%.*]], %bb1 ]
; CHECK: [[VRES1]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI1]])
; CHECK: [[VRES2]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI2]])
; CHECK: [[SRES]] = call float @external_func_float(float [[NEWPHI3]])
; ...
; CHECK: terminator:
; CHECK: store <64 x float> [[VRES1]], ptr %ptr1, align 256
; CHECK: store <64 x float> [[VRES2]], ptr %ptr2, align 256
; CHECK: store float [[SRES]], ptr %ptr3, align 4
define void @f1(i32 %val, ptr %ptr1, ptr %ptr2, ptr %ptr3) {
entry:
br label %bb1
bb1:
%phinode = phi { <64 x float>, <64 x float>, float } [ zeroinitializer , %entry ], [ %insert.3, %bb1 ]
%extract.vec1 = extractvalue { <64 x float>, <64 x float>, float } %phinode, 0
%extract.vec2 = extractvalue { <64 x float>, <64 x float>, float } %phinode, 1
%extract.scalar = extractvalue { <64 x float>, <64 x float>, float } %phinode, 2
%vector.res.1 = call <64 x float> @external_func_vec64float(<64 x float> %extract.vec1)
%vector.res.2 = call <64 x float> @external_func_vec64float(<64 x float> %extract.vec2)
%scalar.res = call float @external_func_float(float %extract.scalar)
%insert.1 = insertvalue { <64 x float>, <64 x float>, float } poison, <64 x float> %vector.res.1, 0
%insert.2 = insertvalue { <64 x float>, <64 x float>, float } %insert.1, <64 x float> %vector.res.2, 1
%insert.3 = insertvalue { <64 x float>, <64 x float>, float } %insert.2, float %scalar.res, 2
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
store <64 x float> %vector.res.1, ptr %ptr1, align 256
store <64 x float> %vector.res.2, ptr %ptr2, align 256
store float %scalar.res, ptr %ptr3, align 4
ret void
}
; This test case verifies that the phi instruction with structure type with vectors and scalars is split and uses are
; correctly replaced.
; CHECK-LABEL: define void @f2
; ...
; CHECK: bb1:
; CHECK: [[NEWPHI1:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI2:%.*]] = phi <64 x float> [ zeroinitializer, %entry ], [ [[VRES2:%.*]], %bb1 ]
; CHECK: [[NEWPHI3:%.*]] = phi float [ 0.000000e+00, %entry ], [ [[SRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI4:%.*]] = phi float [ 0.000000e+00, %entry ], [ [[SRES2:%.*]], %bb1 ]
; CHECK: [[VRES1]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI1]])
; CHECK: [[VRES2]] = call <64 x float> @external_func_vec64float(<64 x float> [[NEWPHI2]])
; CHECK: [[SRES1]] = call float @external_func_float(float [[NEWPHI3]])
; CHECK: [[SRES2]] = call float @external_func_float(float [[NEWPHI4]])
; ...
; CHECK: terminator:
; CHECK: store <64 x float> [[VRES1]], ptr %ptr1, align 256
; CHECK: store <64 x float> [[VRES2]], ptr %ptr2, align 256
; CHECK: store float [[SRES1]], ptr %ptr3, align 4
; CHECK: store float [[SRES2]], ptr %ptr4, align 4
define void @f2(i32 %val, ptr %ptr1, ptr %ptr2, ptr %ptr3, ptr %ptr4) {
entry:
br label %bb1
bb1:
%phinode = phi { <64 x float>, <64 x float>, float, float } [ zeroinitializer, %entry ], [ %insert.4, %bb1 ]
%extract.vec1 = extractvalue { <64 x float>, <64 x float>, float, float } %phinode, 0
%extract.vec2 = extractvalue { <64 x float>, <64 x float>, float, float } %phinode, 1
%extract.scalar1 = extractvalue { <64 x float>, <64 x float>, float, float } %phinode, 2
%extract.scalar2 = extractvalue { <64 x float>, <64 x float>, float, float } %phinode, 3
%vector.res.1 = call <64 x float> @external_func_vec64float(<64 x float> %extract.vec1)
%vector.res.2 = call <64 x float> @external_func_vec64float(<64 x float> %extract.vec2)
%scalar.res.1 = call float @external_func_float(float %extract.scalar1)
%scalar.res.2 = call float @external_func_float(float %extract.scalar2)
%insert.1 = insertvalue { <64 x float>, <64 x float>, float, float } poison, <64 x float> %vector.res.1, 0
%insert.2 = insertvalue { <64 x float>, <64 x float>, float, float } %insert.1, <64 x float> %vector.res.2, 1
%insert.3 = insertvalue { <64 x float>, <64 x float>, float, float } %insert.2, float %scalar.res.1, 2
%insert.4 = insertvalue { <64 x float>, <64 x float>, float, float } %insert.3, float %scalar.res.2, 3
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
store <64 x float> %vector.res.1, ptr %ptr1, align 256
store <64 x float> %vector.res.2, ptr %ptr2, align 256
store float %scalar.res.1, ptr %ptr3, align 4
store float %scalar.res.2, ptr %ptr4, align 4
ret void
}
; This test case verifies that the phi instruction with structure type with vectors and scalars of different types is split, uses are
; correctly replaced, initialization was done with zeroes.
; CHECK-LABEL: define void @f3
; ...
; CHECK: bb1:
; CHECK: [[NEWPHI1:%.*]] = phi double [ 0.000000e+00, %entry ], [ [[SRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI2:%.*]] = phi <32 x i32> [ zeroinitializer, %entry ], [ [[VRES1:%.*]], %bb1 ]
; CHECK: [[NEWPHI3:%.*]] = phi i16 [ 0, %entry ], [ [[SRES2:%.*]], %bb1 ]
; CHECK: [[NEWPHI4:%.*]] = phi <5 x double> [ zeroinitializer, %entry ], [ [[VRES2:%.*]], %bb1 ]
; CHECK: [[SRES1]] = call double @external_func_double(double [[NEWPHI1]])
; CHECK: [[VRES1]] = call <32 x i32> @external_func_vec32i32(<32 x i32> [[NEWPHI2]])
; CHECK: [[SRES2]] = call i16 @external_func_i16(i16 [[NEWPHI3]])
; CHECK: [[VRES2]] = call <5 x double> @external_func_vec5double(<5 x double> [[NEWPHI4]])
; ...
; CHECK: terminator:
; CHECK: store double [[SRES1]], ptr %ptr1, align 8
; CHECK: store <32 x i32> [[VRES1]], ptr %ptr2, align 128
; CHECK: store i16 [[SRES2]], ptr %ptr3, align 2
; CHECK: store <5 x double> [[VRES2]], ptr %ptr4, align 32
define void @f3(i32 %val, ptr %ptr1, ptr %ptr2, ptr %ptr3, ptr %ptr4) {
entry:
br label %bb1
bb1:
%phinode = phi { double, <32 x i32>, i16, <5 x double> } [ zeroinitializer, %entry ], [ %insert.4, %bb1 ]
%extract.double = extractvalue { double, <32 x i32>, i16, <5 x double> } %phinode, 0
%extract.vec32 = extractvalue { double, <32 x i32>, i16, <5 x double> } %phinode, 1
%extract.i16 = extractvalue { double, <32 x i32>, i16, <5 x double> } %phinode, 2
%extract.vec5 = extractvalue { double, <32 x i32>, i16, <5 x double> } %phinode, 3
%double.res = call double @external_func_double(double %extract.double)
%vec32.res = call <32 x i32> @external_func_vec32i32(<32 x i32> %extract.vec32)
%i16.res = call i16 @external_func_i16(i16 %extract.i16)
%vec5.res = call <5 x double> @external_func_vec5double(<5 x double> %extract.vec5)
%insert.1 = insertvalue { double, <32 x i32>, i16, <5 x double> } poison, double %double.res, 0
%insert.2 = insertvalue { double, <32 x i32>, i16, <5 x double> } %insert.1, <32 x i32> %vec32.res, 1
%insert.3 = insertvalue { double, <32 x i32>, i16, <5 x double> } %insert.2, i16 %i16.res, 2
%insert.4 = insertvalue { double, <32 x i32>, i16, <5 x double> } %insert.3, <5 x double> %vec5.res, 3
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
store double %double.res, ptr %ptr1, align 8
store <32 x i32> %vec32.res, ptr %ptr2, align 128
store i16 %i16.res, ptr %ptr3, align 2
store <5 x double> %vec5.res, ptr %ptr4, align 32
ret void
}
; This test case verifies that the phi node isntruction is not split if the structure is used in its entirety somewhere, rather than using individual fields of it.
; CHECK-LABEL: define void @f4
; ...
; CHECK-NOT: phi <64 x float>
; CHECK: %phinode = phi { <64 x float>, <64 x float> }
define void @f4(i32 %val, ptr %ptr1, ptr %ptr2) {
entry:
br label %bb1
bb1:
%phinode = phi { <64 x float>, <64 x float> } [ zeroinitializer, %entry ], [ %insert.2, %bb1 ]
%extract.1 = extractvalue { <64 x float>, <64 x float> } %phinode, 0
%extract.2 = extractvalue { <64 x float>, <64 x float> } %phinode, 1
%vector.res.1 = call <64 x float> @external_func_vec64float(<64 x float> %extract.1)
%vector.res.2 = call <64 x float> @external_func_vec64float(<64 x float> %extract.2)
call void @struct_use_func({ <64 x float>, <64 x float> } %phinode)
%insert.1 = insertvalue { <64 x float>, <64 x float> } poison, <64 x float> %vector.res.1, 0
%insert.2 = insertvalue { <64 x float>, <64 x float> } %insert.1, <64 x float> %vector.res.2, 1
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
store <64 x float> %vector.res.1, ptr %ptr1, align 256
store <64 x float> %vector.res.2, ptr %ptr2, align 256
ret void
}
; This test case verifies that the phi node isntruction is not split if the result of insertvalue instructions that build the structure are not used
; only in the phi instruction.
; CHECK-LABEL: define void @f5
; ...
; CHECK-NOT: phi <64 x float>
; CHECK: %phinode = phi { <64 x float>, <64 x float> }
define void @f5(i32 %val, ptr %ptr1, ptr %ptr2) {
entry:
br label %bb1
bb1:
%phinode = phi { <64 x float>, <64 x float> } [ zeroinitializer, %entry ], [ %insert.2, %bb1 ]
%extract.1 = extractvalue { <64 x float>, <64 x float> } %phinode, 0
%extract.2 = extractvalue { <64 x float>, <64 x float> } %phinode, 1
%vector.res.1 = call <64 x float> @external_func_vec64float(<64 x float> %extract.1)
%vector.res.2 = call <64 x float> @external_func_vec64float(<64 x float> %extract.2)
%insert.1 = insertvalue { <64 x float>, <64 x float> } poison, <64 x float> %vector.res.1, 0
%insert.2 = insertvalue { <64 x float>, <64 x float> } %insert.1, <64 x float> %vector.res.2, 1
%cond = icmp ult i32 %val, 63
br i1 %cond, label %bb1, label %terminator
terminator:
call void @struct_use_func({ <64 x float>, <64 x float> } %insert.2)
store <64 x float> %vector.res.1, ptr %ptr1, align 256
store <64 x float> %vector.res.2, ptr %ptr2, align 256
ret void
}
!igc.functions = !{!0, !3, !5, !7, !9, !11}
!0 = !{void (i32, ptr, ptr)* @f0, !1}
!3 = !{void (i32, ptr, ptr, ptr)* @f1, !1}
!5 = !{void (i32, ptr, ptr, ptr, ptr)* @f2, !1}
!7 = !{void (i32, ptr, ptr, ptr, ptr)* @f3, !1}
!9 = !{void (i32, ptr, ptr)* @f4, !1}
!11 = !{void (i32, ptr, ptr)* @f5, !1}
!1 = !{!2}
!2 = !{!"function_type", i32 0}
|
