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
|
; RUN: opt -passes=openmp-opt -pass-remarks=openmp-opt -pass-remarks-missed=openmp-opt -pass-remarks-analysis=openmp-opt -disable-output < %s 2>&1 | FileCheck %s
target triple = "nvptx64"
; CHECK{LITERAL}: remark: llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c:11:1: Generic-mode kernel is executed with a customized state machine that requires a fallback.
; CHECK{LITERAL}: remark: llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c:13:5: Call may contain unknown parallel regions. Use `[[omp::assume("omp_no_parallelism")]]` to override.
; CHECK{LITERAL}: remark: llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c:15:5: Call may contain unknown parallel regions. Use `[[omp::assume("omp_no_parallelism")]]` to override.
; CHECK{LITERAL}: remark: llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c:20:1: Rewriting generic-mode kernel with a customized state machine.
;; void unknown(void);
;; void known(void) {
;; #pragma omp parallel
;; {
;; unknown();
;; }
;; }
;;
;; void test_fallback(void) {
;; #pragma omp target teams
;; {
;; unknown();
;; known();
;; unknown();
;; }
;; }
;;
;; [[omp::assume("omp_no_openmp")]] void no_openmp(void);
;; void test_no_fallback(void) {
;; #pragma omp target teams
;; {
;; known();
;; known();
;; known();
;; no_openmp(); // make it non-spmd
;; }
;; }
%struct.ident_t = type { i32, i32, i32, i32, ptr }
%struct.KernelEnvironmentTy = type { %struct.ConfigurationEnvironmentTy, ptr, ptr }
%struct.ConfigurationEnvironmentTy = type { i8, i8, i8, i32, i32, i32, i32, i32, i32 }
@0 = private unnamed_addr constant [113 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;__omp_offloading_2a_d80d3d_test_fallback_l11;11;1;;\00", align 1
@1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @0 }, align 8
@2 = private unnamed_addr constant [82 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;test_fallback;11;1;;\00", align 1
@3 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @2 }, align 8
@4 = private unnamed_addr constant [114 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;__omp_offloading_2a_d80d3d_test_fallback_l11;11;25;;\00", align 1
@5 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @4 }, align 8
@6 = private unnamed_addr constant [116 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;__omp_offloading_2a_d80d3d_test_no_fallback_l20;20;1;;\00", align 1
@7 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @6 }, align 8
@8 = private unnamed_addr constant [85 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;test_no_fallback;20;1;;\00", align 1
@9 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @8 }, align 8
@10 = private unnamed_addr constant [117 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;__omp_offloading_2a_d80d3d_test_no_fallback_l20;20;25;;\00", align 1
@11 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @10 }, align 8
@12 = private unnamed_addr constant [73 x i8] c";llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c;known;4;1;;\00", align 1
@13 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 2, i32 0, ptr @12 }, align 8
@G = external global i32
@__omp_offloading_2a_d80d3d_test_fallback_l11_kernel_environment = local_unnamed_addr constant %struct.KernelEnvironmentTy { %struct.ConfigurationEnvironmentTy { i8 1, i8 0, i8 1, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0 }, ptr null, ptr null }
@__omp_offloading_2a_d80d3d_test_no_fallback_l20_kernel_environment = local_unnamed_addr constant %struct.KernelEnvironmentTy { %struct.ConfigurationEnvironmentTy { i8 1, i8 0, i8 1, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0 }, ptr null, ptr null }
; Function Attrs: convergent norecurse nounwind
define weak void @__omp_offloading_2a_d80d3d_test_fallback_l11(ptr %dyn) local_unnamed_addr #0 !dbg !15 {
entry:
%captured_vars_addrs.i.i = alloca [0 x ptr], align 8
%0 = call i32 @__kmpc_target_init(ptr @__omp_offloading_2a_d80d3d_test_fallback_l11_kernel_environment, ptr %dyn) #3, !dbg !18
%exec_user_code = icmp eq i32 %0, -1, !dbg !18
br i1 %exec_user_code, label %user_code.entry, label %common.ret, !dbg !18
common.ret: ; preds = %entry, %user_code.entry
ret void, !dbg !19
user_code.entry: ; preds = %entry
%1 = call i32 @__kmpc_global_thread_num(ptr nonnull @3) #3
call void @unknown() #6, !dbg !20
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %captured_vars_addrs.i.i) #3
%2 = call i32 @__kmpc_global_thread_num(ptr noundef nonnull @13) #3
call void @__kmpc_parallel_51(ptr noundef nonnull @13, i32 %2, i32 noundef 1, i32 noundef -1, i32 noundef -1, ptr noundef @__omp_outlined__2, ptr noundef @__omp_outlined__2_wrapper, ptr noundef nonnull %captured_vars_addrs.i.i, i64 noundef 0) #3, !dbg !23
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %captured_vars_addrs.i.i) #3, !dbg !26
call void @unknown() #6, !dbg !27
call void @__kmpc_target_deinit() #3, !dbg !28
br label %common.ret
}
; Make it a weak definition so we will apply custom state machine rewriting but can't use the body in the reasoning.
define weak i32 @__kmpc_target_init(ptr, ptr) {
ret i32 0
}
; Function Attrs: convergent
declare void @unknown() local_unnamed_addr #1
; Function Attrs: nounwind
define hidden void @known() local_unnamed_addr #2 !dbg !29 {
entry:
%captured_vars_addrs = alloca [0 x ptr], align 8
%0 = call i32 @__kmpc_global_thread_num(ptr nonnull @13)
call void @__kmpc_parallel_51(ptr nonnull @13, i32 %0, i32 1, i32 -1, i32 -1, ptr @__omp_outlined__2, ptr @__omp_outlined__2_wrapper, ptr nonnull %captured_vars_addrs, i64 0) #3, !dbg !30
ret void, !dbg !31
}
; Function Attrs: nounwind
declare i32 @__kmpc_global_thread_num(ptr) local_unnamed_addr #3
declare void @__kmpc_target_deinit() local_unnamed_addr
; Function Attrs: norecurse nounwind
define weak void @__omp_offloading_2a_d80d3d_test_no_fallback_l20(ptr %dyn) local_unnamed_addr #4 !dbg !32 {
entry:
%captured_vars_addrs.i2.i = alloca [0 x ptr], align 8
%0 = call i32 @__kmpc_target_init(ptr @__omp_offloading_2a_d80d3d_test_no_fallback_l20_kernel_environment, ptr %dyn) #3, !dbg !33
%exec_user_code = icmp eq i32 %0, -1, !dbg !33
br i1 %exec_user_code, label %user_code.entry, label %common.ret, !dbg !33
common.ret: ; preds = %entry, %user_code.entry
ret void, !dbg !34
user_code.entry: ; preds = %entry
%1 = call i32 @__kmpc_global_thread_num(ptr nonnull @9) #3
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3
%2 = call i32 @__kmpc_global_thread_num(ptr noundef nonnull @13) #3
call void @__kmpc_parallel_51(ptr noundef nonnull @13, i32 %2, i32 noundef 1, i32 noundef -1, i32 noundef -1, ptr noundef @__omp_outlined__2, ptr noundef @__omp_outlined__2_wrapper, ptr noundef nonnull %captured_vars_addrs.i2.i, i64 noundef 0) #3, !dbg !35
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3, !dbg !39
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3
%3 = call i32 @__kmpc_global_thread_num(ptr noundef nonnull @13) #3
call void @__kmpc_parallel_51(ptr noundef nonnull @13, i32 %3, i32 noundef 1, i32 noundef -1, i32 noundef -1, ptr noundef @__omp_outlined__2, ptr noundef @__omp_outlined__2_wrapper, ptr noundef nonnull %captured_vars_addrs.i2.i, i64 noundef 0) #3, !dbg !40
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3, !dbg !42
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3
%4 = call i32 @__kmpc_global_thread_num(ptr noundef nonnull @13) #3
call void @__kmpc_parallel_51(ptr noundef nonnull @13, i32 %4, i32 noundef 1, i32 noundef -1, i32 noundef -1, ptr noundef @__omp_outlined__2, ptr noundef @__omp_outlined__2_wrapper, ptr noundef nonnull %captured_vars_addrs.i2.i, i64 noundef 0) #3, !dbg !43
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %captured_vars_addrs.i2.i) #3, !dbg !45
call void @no_openmp()
call void @no_parallelism()
call void @__kmpc_target_deinit() #3, !dbg !46
br label %common.ret
}
; Function Attrs: convergent norecurse nounwind
define internal void @__omp_outlined__2(ptr noalias nocapture nofree readnone %.global_tid., ptr noalias nocapture nofree readnone %.bound_tid.) #0 !dbg !47 {
entry:
call void @unknown() #6, !dbg !48
ret void, !dbg !49
}
; Function Attrs: convergent norecurse nounwind
define internal void @__omp_outlined__2_wrapper(i16 zeroext %0, i32 %1) #0 !dbg !50 {
entry:
%global_args = alloca ptr, align 8
call void @__kmpc_get_shared_variables(ptr nonnull %global_args) #3, !dbg !51
call void @unknown() #6, !dbg !52
ret void, !dbg !51
}
declare void @__kmpc_get_shared_variables(ptr) local_unnamed_addr
declare void @__kmpc_parallel_51(ptr, i32, i32, i32, i32, ptr, ptr, ptr, i64) local_unnamed_addr
; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #5
; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #5
declare void @no_openmp() #7
declare void @no_parallelism() #8
attributes #0 = { convergent norecurse nounwind "kernel" "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
attributes #1 = { convergent "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
attributes #2 = { nounwind "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
attributes #3 = { nounwind }
attributes #4 = { norecurse nounwind "kernel" "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="sm_53" "target-features"="+ptx32,+sm_53" }
attributes #5 = { argmemonly nofree nosync nounwind willreturn }
attributes #6 = { convergent nounwind }
attributes #7 = { "llvm.assume"="omp_no_openmp" }
attributes #8 = { "llvm.assume"="omp_no_parallelism" }
!llvm.dbg.cu = !{!0}
!omp_offload.info = !{!3, !4}
!nvvm.annotations = !{!5, !6}
!llvm.module.flags = !{!7, !8, !9, !10, !11, !12, !13}
!llvm.ident = !{!14}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: DebugDirectivesOnly, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "custom_state_machines_remarks.c", directory: "/data/src/llvm-project")
!2 = !{}
!3 = !{i32 0, i32 42, i32 14159165, !"test_no_fallback", i32 20, i32 1}
!4 = !{i32 0, i32 42, i32 14159165, !"test_fallback", i32 11, i32 0}
!5 = !{ptr @__omp_offloading_2a_d80d3d_test_fallback_l11, !"kernel", i32 1}
!6 = !{ptr @__omp_offloading_2a_d80d3d_test_no_fallback_l20, !"kernel", i32 1}
!7 = !{i32 7, !"Dwarf Version", i32 2}
!8 = !{i32 2, !"Debug Info Version", i32 3}
!9 = !{i32 1, !"wchar_size", i32 4}
!10 = !{i32 7, !"openmp", i32 50}
!11 = !{i32 7, !"openmp-device", i32 50}
!12 = !{i32 7, !"PIC Level", i32 2}
!13 = !{i32 7, !"frame-pointer", i32 2}
!14 = !{!"clang version 13.0.0"}
!15 = distinct !DISubprogram(name: "__omp_offloading_2a_d80d3d_test_fallback_l11", scope: !16, file: !16, line: 11, type: !17, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!16 = !DIFile(filename: "llvm/test/Transforms/OpenMP/custom_state_machines_remarks.c", directory: "/data/src/llvm-project")
!17 = !DISubroutineType(types: !2)
!18 = !DILocation(line: 11, column: 1, scope: !15)
!19 = !DILocation(line: 0, scope: !15)
!20 = !DILocation(line: 13, column: 5, scope: !21, inlinedAt: !22)
!21 = distinct !DISubprogram(name: "__omp_outlined__", scope: !16, file: !16, line: 11, type: !17, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!22 = distinct !DILocation(line: 11, column: 1, scope: !15)
!23 = !DILocation(line: 4, column: 1, scope: !24, inlinedAt: !25)
!24 = distinct !DISubprogram(name: "known", scope: !16, file: !16, line: 3, type: !17, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!25 = distinct !DILocation(line: 14, column: 5, scope: !21, inlinedAt: !22)
!26 = !DILocation(line: 8, column: 1, scope: !24, inlinedAt: !25)
!27 = !DILocation(line: 15, column: 5, scope: !21, inlinedAt: !22)
!28 = !DILocation(line: 11, column: 25, scope: !15)
!29 = distinct !DISubprogram(name: "known", scope: !16, file: !16, line: 3, type: !17, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!30 = !DILocation(line: 4, column: 1, scope: !29)
!31 = !DILocation(line: 8, column: 1, scope: !29)
!32 = distinct !DISubprogram(name: "__omp_offloading_2a_d80d3d_test_no_fallback_l20", scope: !16, file: !16, line: 20, type: !17, scopeLine: 20, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!33 = !DILocation(line: 20, column: 1, scope: !32)
!34 = !DILocation(line: 0, scope: !32)
!35 = !DILocation(line: 4, column: 1, scope: !24, inlinedAt: !36)
!36 = distinct !DILocation(line: 22, column: 5, scope: !37, inlinedAt: !38)
!37 = distinct !DISubprogram(name: "__omp_outlined__1", scope: !16, file: !16, line: 20, type: !17, scopeLine: 20, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!38 = distinct !DILocation(line: 20, column: 1, scope: !32)
!39 = !DILocation(line: 8, column: 1, scope: !24, inlinedAt: !36)
!40 = !DILocation(line: 4, column: 1, scope: !24, inlinedAt: !41)
!41 = distinct !DILocation(line: 23, column: 5, scope: !37, inlinedAt: !38)
!42 = !DILocation(line: 8, column: 1, scope: !24, inlinedAt: !41)
!43 = !DILocation(line: 4, column: 1, scope: !24, inlinedAt: !44)
!44 = distinct !DILocation(line: 24, column: 5, scope: !37, inlinedAt: !38)
!45 = !DILocation(line: 8, column: 1, scope: !24, inlinedAt: !44)
!46 = !DILocation(line: 20, column: 25, scope: !32)
!47 = distinct !DISubprogram(name: "__omp_outlined__2", scope: !16, file: !16, line: 4, type: !17, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!48 = !DILocation(line: 6, column: 5, scope: !47)
!49 = !DILocation(line: 7, column: 3, scope: !47)
!50 = distinct !DISubprogram(linkageName: "__omp_outlined__2_wrapper", scope: !16, file: !16, line: 4, type: !17, scopeLine: 4, flags: DIFlagArtificial, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!51 = !DILocation(line: 4, column: 1, scope: !50)
!52 = !DILocation(line: 6, column: 5, scope: !47, inlinedAt: !53)
!53 = distinct !DILocation(line: 4, column: 1, scope: !50)
|
