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
|
;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2025 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; RUN: igc_opt --typed-pointers --enable-debugify --igc-promote-to-predicated-memory-access --platformbmg -S < %s 2>&1 | FileCheck %s
; Debug-info related check
; 11 warnings are related to 11 deleted phi instructions
; CHECK-COUNT-11: WARNING
; CHECK: CheckModuleDebugify: PASS
; Test basic logic
; CHECK-LABEL: @test1(
define <4 x float> @test1(<4 x float> addrspace(1)* %src, i1 %pred) {
entry:
; CHECK: br label %st
br i1 %pred, label %st, label %exit
st:
; CHECK: %load = call <4 x float> @llvm.genx.GenISA.PredicatedLoad.v4f32.p1v4f32.v4f32(<4 x float> addrspace(1)* %src, i64 16, i1 %pred, <4 x float> zeroinitializer)
%load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
%.scalar = extractelement <4 x float> %load, i64 0
%.scalar15 = extractelement <4 x float> %load, i64 1
%.scalar16 = extractelement <4 x float> %load, i64 2
%.scalar17 = extractelement <4 x float> %load, i64 3
br label %exit
exit:
; CHECK-NOT: phi
; CHECK: %res0 = insertelement <4 x float> undef, float %.scalar, i64 0
; CHECK: %res1 = insertelement <4 x float> %res0, float %.scalar15, i64 1
; CHECK: %res2 = insertelement <4 x float> %res1, float %.scalar16, i64 2
; CHECK: %res3 = insertelement <4 x float> %res2, float %.scalar17, i64 3
%bc311 = phi float [ %.scalar, %st ], [ 0.000000e+00, %entry ]
%bc312 = phi float [ %.scalar15, %st ], [ 0.000000e+00, %entry ]
%bc313 = phi float [ %.scalar16, %st ], [ 0.000000e+00, %entry ]
%bc314 = phi float [ %.scalar17, %st ], [ 0.000000e+00, %entry ]
%res0 = insertelement <4 x float> undef, float %bc311, i64 0
%res1 = insertelement <4 x float> %res0, float %bc312, i64 1
%res2 = insertelement <4 x float> %res1, float %bc313, i64 2
%res3 = insertelement <4 x float> %res2, float %bc314, i64 3
ret <4 x float> %res3
}
; Test non-constant merge values
; CHECK-LABEL: @test2(
define <4 x float> @test2(<4 x float> addrspace(1)* %src, i1 %pred, float %d1, float %d2, float %d3, float %d4) {
entry:
; CHECK: br label %st
br i1 %pred, label %st, label %exit
st:
; CHECK: [[TMP0:%[0-9]+]] = insertelement <4 x float> poison, float %d1, i64 0
; CHECK: [[TMP1:%[0-9]+]] = insertelement <4 x float> [[TMP0]], float %d3, i64 1
; CHECK: [[TMP2:%[0-9]+]] = insertelement <4 x float> [[TMP1]], float %d2, i64 2
; CHECK: [[TMP3:%[0-9]+]] = insertelement <4 x float> [[TMP2]], float %d4, i64 3
; CHECK: %load = call <4 x float> @llvm.genx.GenISA.PredicatedLoad.v4f32.p1v4f32.v4f32(<4 x float> addrspace(1)* %src, i64 16, i1 %pred, <4 x float> [[TMP3]])
%load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
%.scalar = extractelement <4 x float> %load, i64 0
%.scalar15 = extractelement <4 x float> %load, i64 1
%.scalar16 = extractelement <4 x float> %load, i64 2
%.scalar17 = extractelement <4 x float> %load, i64 3
br label %exit
exit:
; CHECK-NOT: phi
; CHECK: %res0 = insertelement <4 x float> undef, float %.scalar, i64 0
; CHECK: %res1 = insertelement <4 x float> %res0, float %.scalar15, i64 1
; CHECK: %res2 = insertelement <4 x float> %res1, float %.scalar16, i64 2
; CHECK: %res3 = insertelement <4 x float> %res2, float %.scalar17, i64 3
%bc311 = phi float [ %.scalar, %st ], [ %d1, %entry ]
%bc312 = phi float [ %.scalar15, %st ], [ %d3, %entry ]
%bc313 = phi float [ %.scalar16, %st ], [ %d2, %entry ]
%bc314 = phi float [ %.scalar17, %st ], [ %d4, %entry ]
%res0 = insertelement <4 x float> undef, float %bc311, i64 0
%res1 = insertelement <4 x float> %res0, float %bc312, i64 1
%res2 = insertelement <4 x float> %res1, float %bc313, i64 2
%res3 = insertelement <4 x float> %res2, float %bc314, i64 3
ret <4 x float> %res3
}
; skip case with non-constant indexes
; CHECK-LABEL: @test3(
define <4 x float> @test3(<4 x float> addrspace(1)* %src, i1 %pred, i64 %id0, i64 %id1, i64 %id2, i64 %id3) {
entry:
; CHECK: br i1 %pred, label %st, label %exit
br i1 %pred, label %st, label %exit
st:
; CHECK: %load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
%load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
%.scalar = extractelement <4 x float> %load, i64 %id0
%.scalar15 = extractelement <4 x float> %load, i64 %id1
%.scalar16 = extractelement <4 x float> %load, i64 %id2
%.scalar17 = extractelement <4 x float> %load, i64 %id3
br label %exit
exit:
; CHECK: %bc311 = phi float [ %.scalar, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc312 = phi float [ %.scalar15, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc313 = phi float [ %.scalar16, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc314 = phi float [ %.scalar17, %st ], [ 0.000000e+00, %entry ]
%bc311 = phi float [ %.scalar, %st ], [ 0.000000e+00, %entry ]
%bc312 = phi float [ %.scalar15, %st ], [ 0.000000e+00, %entry ]
%bc313 = phi float [ %.scalar16, %st ], [ 0.000000e+00, %entry ]
%bc314 = phi float [ %.scalar17, %st ], [ 0.000000e+00, %entry ]
%res0 = insertelement <4 x float> undef, float %bc311, i64 0
%res1 = insertelement <4 x float> %res0, float %bc312, i64 1
%res2 = insertelement <4 x float> %res1, float %bc313, i64 2
%res3 = insertelement <4 x float> %res2, float %bc314, i64 3
ret <4 x float> %res3
}
; Test load is not in the same BB
; CHECK-LABEL: @test4(
define <4 x float> @test4(<4 x float> addrspace(1)* %src, i1 %pred) {
entry:
; CHECK: %load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
; CHECK: br i1 %pred, label %st, label %exit
%load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
br i1 %pred, label %st, label %exit
st:
%.scalar = extractelement <4 x float> %load, i64 0
%.scalar15 = extractelement <4 x float> %load, i64 1
%.scalar16 = extractelement <4 x float> %load, i64 2
%.scalar17 = extractelement <4 x float> %load, i64 3
br label %exit
exit:
; CHECK: %bc311 = phi float [ %.scalar, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc312 = phi float [ %.scalar15, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc313 = phi float [ %.scalar16, %st ], [ 0.000000e+00, %entry ]
; CHECK: %bc314 = phi float [ %.scalar17, %st ], [ 0.000000e+00, %entry ]
%bc311 = phi float [ %.scalar, %st ], [ 0.000000e+00, %entry ]
%bc312 = phi float [ %.scalar15, %st ], [ 0.000000e+00, %entry ]
%bc313 = phi float [ %.scalar16, %st ], [ 0.000000e+00, %entry ]
%bc314 = phi float [ %.scalar17, %st ], [ 0.000000e+00, %entry ]
%res0 = insertelement <4 x float> undef, float %bc311, i64 0
%res1 = insertelement <4 x float> %res0, float %bc312, i64 1
%res2 = insertelement <4 x float> %res1, float %bc313, i64 2
%res3 = insertelement <4 x float> %res2, float %bc314, i64 3
ret <4 x float> %res3
}
; not all values are used
; CHECK-LABEL: @test5(
define <4 x float> @test5(<4 x float> addrspace(1)* %src, i1 %pred, float %d1, float %d2, float %d3) {
entry:
; CHECK: br label %st
br i1 %pred, label %st, label %exit
st:
; CHECK: [[TMP0:%[0-9]+]] = insertelement <4 x float> poison, float %d1, i64 0
; CHECK: [[TMP1:%[0-9]+]] = insertelement <4 x float> [[TMP0]], float %d2, i64 1
; CHECK: [[TMP2:%[0-9]+]] = insertelement <4 x float> [[TMP1]], float 0.000000e+00, i64 2
; CHECK: [[TMP3:%[0-9]+]] = insertelement <4 x float> [[TMP2]], float %d3, i64 3
; CHECK: %load = call <4 x float> @llvm.genx.GenISA.PredicatedLoad.v4f32.p1v4f32.v4f32(<4 x float> addrspace(1)* %src, i64 16, i1 %pred, <4 x float> [[TMP3]])
%load = load <4 x float>, <4 x float> addrspace(1)* %src, align 16
%.scalar = extractelement <4 x float> %load, i64 0
%.scalar15 = extractelement <4 x float> %load, i64 1
%.scalar16 = extractelement <4 x float> %load, i64 2
%.scalar17 = extractelement <4 x float> %load, i64 3
br label %exit
exit:
; CHECK-NOT: phi
; CHECK: %res0 = insertelement <4 x float> undef, float %.scalar, i64 0
; CHECK: %res1 = insertelement <4 x float> %res0, float %.scalar15, i64 1
; CHECK: %res3 = insertelement <4 x float> %res1, float %.scalar17, i64 3
%bc311 = phi float [ %.scalar, %st ], [ %d1, %entry ]
%bc312 = phi float [ %.scalar15, %st ], [ %d2, %entry ]
%bc314 = phi float [ %.scalar17, %st ], [ %d3, %entry ]
%res0 = insertelement <4 x float> undef, float %bc311, i64 0
%res1 = insertelement <4 x float> %res0, float %bc312, i64 1
%res3 = insertelement <4 x float> %res1, float %bc314, i64 3
ret <4 x float> %res3
}
|
