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
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
|
// Test target codegen - host bc file has to be created first.
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-64
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm-bc %s -o %t-x86-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32
// RUN: %clang_cc1 -verify -fopenmp -fexceptions -fcxx-exceptions -x c++ -triple nvptx-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
// CHECK: [[MAP_TY:%.+]] = type { [16 x i8] }
// CHECK-DAG: [[KERNEL_PTR:@.+]] = internal addrspace(3) global i8* null
// CHECK-DAG: [[KERNEL_SHARED1:@.+]] = internal unnamed_addr constant i16 1
// CHECK-DAG: [[KERNEL_SHARED2:@.+]] = internal unnamed_addr constant i16 1
// CHECK-DAG: [[KERNEL_SHARED3:@.+]] = internal unnamed_addr constant i16 1
// CHECK-DAG: [[KERNEL_SIZE1:@.+]] = internal unnamed_addr constant i{{64|32}} {{16|8}}
// CHECK-DAG: [[KERNEL_SIZE2:@.+]] = internal unnamed_addr constant i{{64|32}} 16
// CHECK-DAG: [[KERNEL_SIZE3:@.+]] = internal unnamed_addr constant i{{64|32}} 8
// Check for the data transfer medium in shared memory to transfer the reduction list to the first warp.
// CHECK-DAG: [[TRANSFER_STORAGE:@.+]] = common addrspace([[SHARED_ADDRSPACE:[0-9]+]]) global [32 x i32]
// Check that the execution mode of 2 target regions is set to Non-SPMD and the 3rd is in SPMD.
// CHECK-DAG: {{@__omp_offloading_.+l37}}_exec_mode = weak constant i8 1
// CHECK-DAG: {{@__omp_offloading_.+l43}}_exec_mode = weak constant i8 1
// CHECK-DAG: {{@__omp_offloading_.+l50}}_exec_mode = weak constant i8 0
template<typename tx>
tx ftemplate(int n) {
int a;
short b;
tx c;
float d;
double e;
#pragma omp target
#pragma omp teams reduction(+: e)
{
e += 5;
}
#pragma omp target
#pragma omp teams reduction(^: c) reduction(*: d)
{
c ^= 2;
d *= 33;
}
#pragma omp target
#pragma omp teams reduction(|: a) reduction(max: b)
#pragma omp parallel reduction(|: a) reduction(max: b)
{
a |= 1;
b = 99 > b ? 99 : b;
}
return a+b+c+d+e;
}
int bar(int n){
int a = 0;
a += ftemplate<char>(n);
return a;
}
// CHECK-LABEL: define {{.*}}void {{@__omp_offloading_.+template.+l37}}_worker()
// CHECK: define {{.*}}void [[T1:@__omp_offloading_.+template.+l37]](
//
// CHECK: {{call|invoke}} void [[T1]]_worker()
//
// CHECK: call void @__kmpc_kernel_init(
//
// CHECK: store double {{[0\.e\+]+}}, double* [[E:%.+]], align
// CHECK: [[EV:%.+]] = load double, double* [[E]], align
// CHECK: [[ADD:%.+]] = fadd double [[EV]], 5
// CHECK: store double [[ADD]], double* [[E]], align
// CHECK: [[RET:%.+]] = call i32 @__kmpc_nvptx_teams_reduce_nowait_simple(%struct.ident_t* [[LOC:@.+]], i32 [[GTID:%.+]], [8 x i32]* [[LOCK:@.+]])
// CHECK: [[COND:%.+]] = icmp eq i32 [[RET]], 1
// CHECK: br i1 [[COND]], label {{%?}}[[IFLABEL:.+]], label {{%?}}[[EXIT:.+]]
//
// CHECK: [[IFLABEL]]
// CHECK: [[E_INV:%.+]] = load double, double* [[E_IN:%.+]], align
// CHECK: [[EV:%.+]] = load double, double* [[E]], align
// CHECK: [[ADD:%.+]] = fadd double [[E_INV]], [[EV]]
// CHECK: store double [[ADD]], double* [[E_IN]], align
// CHECK: call void @__kmpc_nvptx_teams_end_reduce_nowait_simple(%struct.ident_t* [[LOC]], i32 [[GTID]], [8 x i32]* [[LOCK]])
// CHECK: br label %[[EXIT]]
//
// CHECK: [[EXIT]]
// CHECK: call void @__kmpc_kernel_deinit(
// CHECK-LABEL: define {{.*}}void {{@__omp_offloading_.+template.+l43}}_worker()
// CHECK: define {{.*}}void [[T2:@__omp_offloading_.+template.+l43]](
//
// CHECK: {{call|invoke}} void [[T2]]_worker()
//
// CHECK: call void @__kmpc_kernel_init(
//
// CHECK: store float {{1\.[0e\+]+}}, float* [[D:%.+]], align
// CHECK: [[C_VAL:%.+]] = load i8, i8* [[C:%.+]], align
// CHECK: [[CONV:%.+]] = sext i8 [[C_VAL]] to i32
// CHECK: [[XOR:%.+]] = xor i32 [[CONV]], 2
// CHECK: [[TRUNC:%.+]] = trunc i32 [[XOR]] to i8
// CHECK: store i8 [[TRUNC]], i8* [[C]], align
// CHECK: [[DV:%.+]] = load float, float* [[D]], align
// CHECK: [[MUL:%.+]] = fmul float [[DV]], {{[0-9e\.\+]+}}
// CHECK: store float [[MUL]], float* [[D]], align
// CHECK: [[RET:%.+]] = call i32 @__kmpc_nvptx_teams_reduce_nowait_simple(%struct.ident_t* [[LOC:@.+]], i32 [[GTID:%.+]], [8 x i32]* [[LOCK:@.+]])
// CHECK: [[COND:%.+]] = icmp eq i32 [[RET]], 1
// CHECK: br i1 [[COND]], label {{%?}}[[IFLABEL:.+]], label {{%?}}[[EXIT:.+]]
//
// CHECK: [[IFLABEL]]
// CHECK: [[C_INV8:%.+]] = load i8, i8* [[C_IN:%.+]], align
// CHECK: [[C_INV:%.+]] = sext i8 [[C_INV8]] to i32
// CHECK: [[CV8:%.+]] = load i8, i8* [[C]], align
// CHECK: [[CV:%.+]] = sext i8 [[CV8]] to i32
// CHECK: [[XOR:%.+]] = xor i32 [[C_INV]], [[CV]]
// CHECK: [[TRUNC:%.+]] = trunc i32 [[XOR]] to i8
// CHECK: store i8 [[TRUNC]], i8* [[C_IN]], align
// CHECK: [[D_INV:%.+]] = load float, float* [[D_IN:%.+]], align
// CHECK: [[DV:%.+]] = load float, float* [[D]], align
// CHECK: [[MUL:%.+]] = fmul float [[D_INV]], [[DV]]
// CHECK: store float [[MUL]], float* [[D_IN]], align
// CHECK: call void @__kmpc_nvptx_teams_end_reduce_nowait_simple(%struct.ident_t* [[LOC]], i32 [[GTID]], [8 x i32]* [[LOCK]])
// CHECK: br label %[[EXIT]]
//
// CHECK: [[EXIT]]
// CHECK: call void @__kmpc_kernel_deinit(
// CHECK-LABEL: define {{.*}}void {{@__omp_offloading_.+template.+l50}}(
//
// CHECK: call void @__kmpc_spmd_kernel_init(
// CHECK: call void @__kmpc_data_sharing_init_stack_spmd()
// CHECK: call void @__kmpc_get_team_static_memory(i8* addrspacecast (i8 addrspace(3)* getelementptr inbounds ([[MEM_TY:%.+]], %{{.+}} addrspace(3)* [[KERNEL_RD:@.+]], i32 0, i32 0, i32 0) to i8*), i{{64|32}} {{8|16}}, i16 1, i8** addrspacecast (i8* addrspace(3)* [[KERNEL_PTR:@.+]] to i8**))
// CHECK: [[PTR:%.+]] = load i8*, i8* addrspace(3)* [[KERNEL_PTR]],
// CHECK: [[GLOBAL_REC:%.+]] = bitcast i8* [[PTR]] to [[GLOB_REC_TY:%.+]]*
// CHECK-DAG: [[A_ADDR:%.+]] = getelementptr inbounds [[GLOB_REC_TY]], [[GLOB_REC_TY]]* [[GLOBAL_REC]], i32 0, i32 0
// CHECK-DAG: [[B_ADDR:%.+]] = getelementptr inbounds [[GLOB_REC_TY]], [[GLOB_REC_TY]]* [[GLOBAL_REC]], i32 0, i32 1
// CHECK: store i32 0, i32* [[A_ADDR]],
// CHECK: store i16 -32768, i16* [[B_ADDR]],
// CHECK: call void [[OUTLINED:@.+]](i32* {{.+}}, i32* {{.+}}, i32* [[A_ADDR]], i16* [[B_ADDR]])
// CHECK: [[RET:%.+]] = call i32 @__kmpc_nvptx_teams_reduce_nowait_simple(%struct.ident_t* [[LOC:@.+]], i32 [[GTID:%.+]], [8 x i32]* [[LOCK:@.+]])
// CHECK: [[COND:%.+]] = icmp eq i32 [[RET]], 1
// CHECK: br i1 [[COND]], label {{%?}}[[IFLABEL:.+]], label {{%?}}[[EXIT:.+]]
//
// CHECK: [[IFLABEL]]
// CHECK: [[A_INV:%.+]] = load i32, i32* [[A_IN:%.+]], align
// CHECK: [[AV:%.+]] = load i32, i32* [[A_ADDR]], align
// CHECK: [[OR:%.+]] = or i32 [[A_INV]], [[AV]]
// CHECK: store i32 [[OR]], i32* [[A_IN]], align
// CHECK: [[B_INV16:%.+]] = load i16, i16* [[B_IN:%.+]], align
// CHECK: [[B_INV:%.+]] = sext i16 [[B_INV16]] to i32
// CHECK: [[BV16:%.+]] = load i16, i16* [[B_ADDR]], align
// CHECK: [[BV:%.+]] = sext i16 [[BV16]] to i32
// CHECK: [[CMP:%.+]] = icmp sgt i32 [[B_INV]], [[BV]]
// CHECK: br i1 [[CMP]], label {{%?}}[[DO_MAX:.+]], label {{%?}}[[MAX_ELSE:.+]]
//
// CHECK: [[DO_MAX]]
// CHECK: [[MAX1:%.+]] = load i16, i16* [[B_IN]], align
// CHECK: br label {{%?}}[[MAX_CONT:.+]]
//
// CHECK: [[MAX_ELSE]]
// CHECK: [[MAX2:%.+]] = load i16, i16* [[B_ADDR]], align
// CHECK: br label {{%?}}[[MAX_CONT]]
//
// CHECK: [[MAX_CONT]]
// CHECK: [[B_MAX:%.+]] = phi i16 [ [[MAX1]], %[[DO_MAX]] ], [ [[MAX2]], %[[MAX_ELSE]] ]
// CHECK: store i16 [[B_MAX]], i16* [[B_IN]], align
// CHECK: call void @__kmpc_nvptx_teams_end_reduce_nowait_simple(%struct.ident_t* [[LOC]], i32 [[GTID]], [8 x i32]* [[LOCK]])
// CHECK: br label %[[EXIT]]
//
// CHECK: [[EXIT]]
// call void @__kmpc_restore_team_static_memory(i16 1)
// CHECK: call void @__kmpc_spmd_kernel_deinit_v2(i16 1)
// CHECK: define internal void [[OUTLINED]](i32* noalias %{{.+}}, i32* noalias %{{.+}}, i32* dereferenceable{{.+}}, i16* dereferenceable{{.+}})
//
// CHECK: store i32 0, i32* [[A:%.+]], align
// CHECK: store i16 -32768, i16* [[B:%.+]], align
// CHECK: [[A_VAL:%.+]] = load i32, i32* [[A:%.+]], align
// CHECK: [[OR:%.+]] = or i32 [[A_VAL]], 1
// CHECK: store i32 [[OR]], i32* [[A]], align
// CHECK: [[BV16:%.+]] = load i16, i16* [[B]], align
// CHECK: [[BV:%.+]] = sext i16 [[BV16]] to i32
// CHECK: [[CMP:%.+]] = icmp sgt i32 99, [[BV]]
// CHECK: br i1 [[CMP]], label {{%?}}[[DO_MAX:.+]], label {{%?}}[[MAX_ELSE:.+]]
//
// CHECK: [[DO_MAX]]
// CHECK: br label {{%?}}[[MAX_CONT:.+]]
//
// CHECK: [[MAX_ELSE]]
// CHECK: [[BV:%.+]] = load i16, i16* [[B]], align
// CHECK: [[MAX:%.+]] = sext i16 [[BV]] to i32
// CHECK: br label {{%?}}[[MAX_CONT]]
//
// CHECK: [[MAX_CONT]]
// CHECK: [[B_LVALUE:%.+]] = phi i32 [ 99, %[[DO_MAX]] ], [ [[MAX]], %[[MAX_ELSE]] ]
// CHECK: [[TRUNC:%.+]] = trunc i32 [[B_LVALUE]] to i16
// CHECK: store i16 [[TRUNC]], i16* [[B]], align
// CHECK: [[PTR1:%.+]] = getelementptr inbounds [[RLT:.+]], [2 x i8*]* [[RL:%.+]], i{{.+}} 0, i[[SZ:.+]] 0
// CHECK: [[A_CAST:%.+]] = bitcast i32* [[A]] to i8*
// CHECK: store i8* [[A_CAST]], i8** [[PTR1]], align
// CHECK: [[PTR2:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RL]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[B_CAST:%.+]] = bitcast i16* [[B]] to i8*
// CHECK: store i8* [[B_CAST]], i8** [[PTR2]], align
// CHECK: [[ARG_RL:%.+]] = bitcast [[RLT]]* [[RL]] to i8*
// CHECK: [[RET:%.+]] = call i32 @__kmpc_nvptx_parallel_reduce_nowait(i32 {{.+}}, i32 2, i[[SZ]] {{8|16}}, i8* [[ARG_RL]], void (i8*, i16, i16, i16)* [[PAR_SHUFFLE_REDUCE_FN:@.+]], void (i8*, i32)* [[PAR_WARP_COPY_FN:@.+]])
// CHECK: [[COND:%.+]] = icmp eq i32 [[RET]], 1
// CHECK: br i1 [[COND]], label {{%?}}[[IFLABEL:.+]], label {{%?}}[[EXIT:.+]]
//
// CHECK: [[IFLABEL]]
// CHECK: [[A_INV:%.+]] = load i32, i32* [[A_IN:%.+]], align
// CHECK: [[AV:%.+]] = load i32, i32* [[A]], align
// CHECK: [[OR:%.+]] = or i32 [[A_INV]], [[AV]]
// CHECK: store i32 [[OR]], i32* [[A_IN]], align
// CHECK: [[B_INV16:%.+]] = load i16, i16* [[B_IN:%.+]], align
// CHECK: [[B_INV:%.+]] = sext i16 [[B_INV16]] to i32
// CHECK: [[BV16:%.+]] = load i16, i16* [[B]], align
// CHECK: [[BV:%.+]] = sext i16 [[BV16]] to i32
// CHECK: [[CMP:%.+]] = icmp sgt i32 [[B_INV]], [[BV]]
// CHECK: br i1 [[CMP]], label {{%?}}[[DO_MAX:.+]], label {{%?}}[[MAX_ELSE:.+]]
//
// CHECK: [[DO_MAX]]
// CHECK: [[MAX1:%.+]] = load i16, i16* [[B_IN]], align
// CHECK: br label {{%?}}[[MAX_CONT:.+]]
//
// CHECK: [[MAX_ELSE]]
// CHECK: [[MAX2:%.+]] = load i16, i16* [[B]], align
// CHECK: br label {{%?}}[[MAX_CONT]]
//
// CHECK: [[MAX_CONT]]
// CHECK: [[B_MAX:%.+]] = phi i16 [ [[MAX1]], %[[DO_MAX]] ], [ [[MAX2]], %[[MAX_ELSE]] ]
// CHECK: store i16 [[B_MAX]], i16* [[B_IN]], align
// CHECK: call void @__kmpc_nvptx_end_reduce_nowait(
// CHECK: br label %[[EXIT]]
//
// CHECK: [[EXIT]]
// CHECK: ret void
//
// Reduction function
// CHECK: define internal void [[PAR_REDUCTION_FUNC:@.+]](i8*, i8*)
// CHECK: [[VAR1_RHS_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST_RHS:%.+]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[VAR1_RHS_VOID:%.+]] = load i8*, i8** [[VAR1_RHS_REF]],
// CHECK: [[VAR1_RHS:%.+]] = bitcast i8* [[VAR1_RHS_VOID]] to i32*
//
// CHECK: [[VAR1_LHS_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST_LHS:%.+]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[VAR1_LHS_VOID:%.+]] = load i8*, i8** [[VAR1_LHS_REF]],
// CHECK: [[VAR1_LHS:%.+]] = bitcast i8* [[VAR1_LHS_VOID]] to i32*
//
// CHECK: [[VAR2_RHS_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST_RHS]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[VAR2_RHS_VOID:%.+]] = load i8*, i8** [[VAR2_RHS_REF]],
// CHECK: [[VAR2_RHS:%.+]] = bitcast i8* [[VAR2_RHS_VOID]] to i16*
//
// CHECK: [[VAR2_LHS_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST_LHS]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[VAR2_LHS_VOID:%.+]] = load i8*, i8** [[VAR2_LHS_REF]],
// CHECK: [[VAR2_LHS:%.+]] = bitcast i8* [[VAR2_LHS_VOID]] to i16*
//
// CHECK: [[VAR1_LHS_VAL:%.+]] = load i32, i32* [[VAR1_LHS]],
// CHECK: [[VAR1_RHS_VAL:%.+]] = load i32, i32* [[VAR1_RHS]],
// CHECK: [[OR:%.+]] = or i32 [[VAR1_LHS_VAL]], [[VAR1_RHS_VAL]]
// CHECK: store i32 [[OR]], i32* [[VAR1_LHS]],
//
// CHECK: [[VAR2_LHS_VAL16:%.+]] = load i16, i16* [[VAR2_LHS]],
// CHECK: [[VAR2_LHS_VAL:%.+]] = sext i16 [[VAR2_LHS_VAL16]] to i32
// CHECK: [[VAR2_RHS_VAL16:%.+]] = load i16, i16* [[VAR2_RHS]],
// CHECK: [[VAR2_RHS_VAL:%.+]] = sext i16 [[VAR2_RHS_VAL16]] to i32
//
// CHECK: [[CMP:%.+]] = icmp sgt i32 [[VAR2_LHS_VAL]], [[VAR2_RHS_VAL]]
// CHECK: br i1 [[CMP]], label {{%?}}[[DO_MAX:.+]], label {{%?}}[[MAX_ELSE:.+]]
//
// CHECK: [[DO_MAX]]
// CHECK: [[MAX1:%.+]] = load i16, i16* [[VAR2_LHS]], align
// CHECK: br label {{%?}}[[MAX_CONT:.+]]
//
// CHECK: [[MAX_ELSE]]
// CHECK: [[MAX2:%.+]] = load i16, i16* [[VAR2_RHS]], align
// CHECK: br label {{%?}}[[MAX_CONT]]
//
// CHECK: [[MAX_CONT]]
// CHECK: [[MAXV:%.+]] = phi i16 [ [[MAX1]], %[[DO_MAX]] ], [ [[MAX2]], %[[MAX_ELSE]] ]
// CHECK: store i16 [[MAXV]], i16* [[VAR2_LHS]],
// CHECK: ret void
//
// Shuffle and reduce function
// CHECK: define internal void [[PAR_SHUFFLE_REDUCE_FN]](i8*, i16 {{.*}}, i16 {{.*}}, i16 {{.*}})
// CHECK: [[REMOTE_RED_LIST:%.+]] = alloca [[RLT]], align
// CHECK: [[REMOTE_ELT1:%.+]] = alloca i32
// CHECK: [[REMOTE_ELT2:%.+]] = alloca i16
//
// CHECK: [[LANEID:%.+]] = load i16, i16* {{.+}}, align
// CHECK: [[LANEOFFSET:%.+]] = load i16, i16* {{.+}}, align
// CHECK: [[ALGVER:%.+]] = load i16, i16* {{.+}}, align
//
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST:%.+]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[REMOTE_ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[REMOTE_RED_LIST:%.+]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i32*
// CHECK: [[ELT_VAL:%.+]] = load i32, i32* [[ELT]], align
//
// CHECK: [[WS32:%.+]] = call i32 @llvm.nvvm.read.ptx.sreg.warpsize()
// CHECK: [[WS:%.+]] = trunc i32 [[WS32]] to i16
// CHECK: [[REMOTE_ELT1_VAL:%.+]] = call i32 @__kmpc_shuffle_int32(i32 [[ELT_VAL]], i16 [[LANEOFFSET]], i16 [[WS]])
//
// CHECK: store i32 [[REMOTE_ELT1_VAL]], i32* [[REMOTE_ELT1]], align
// CHECK: [[REMOTE_ELT1C:%.+]] = bitcast i32* [[REMOTE_ELT1]] to i8*
// CHECK: store i8* [[REMOTE_ELT1C]], i8** [[REMOTE_ELT_REF]], align
//
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[REMOTE_ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[REMOTE_RED_LIST]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i16*
// CHECK: [[ELT_VAL:%.+]] = load i16, i16* [[ELT]], align
//
// CHECK: [[ELT_CAST:%.+]] = sext i16 [[ELT_VAL]] to i32
// CHECK: [[WS32:%.+]] = call i32 @llvm.nvvm.read.ptx.sreg.warpsize()
// CHECK: [[WS:%.+]] = trunc i32 [[WS32]] to i16
// CHECK: [[REMOTE_ELT2_VAL32:%.+]] = call i32 @__kmpc_shuffle_int32(i32 [[ELT_CAST]], i16 [[LANEOFFSET]], i16 [[WS]])
// CHECK: [[REMOTE_ELT2_VAL:%.+]] = trunc i32 [[REMOTE_ELT2_VAL32]] to i16
//
// CHECK: store i16 [[REMOTE_ELT2_VAL]], i16* [[REMOTE_ELT2]], align
// CHECK: [[REMOTE_ELT2C:%.+]] = bitcast i16* [[REMOTE_ELT2]] to i8*
// CHECK: store i8* [[REMOTE_ELT2C]], i8** [[REMOTE_ELT_REF]], align
//
// Condition to reduce
// CHECK: [[CONDALG0:%.+]] = icmp eq i16 [[ALGVER]], 0
//
// CHECK: [[COND1:%.+]] = icmp eq i16 [[ALGVER]], 1
// CHECK: [[COND2:%.+]] = icmp ult i16 [[LANEID]], [[LANEOFFSET]]
// CHECK: [[CONDALG1:%.+]] = and i1 [[COND1]], [[COND2]]
//
// CHECK: [[COND3:%.+]] = icmp eq i16 [[ALGVER]], 2
// CHECK: [[COND4:%.+]] = and i16 [[LANEID]], 1
// CHECK: [[COND5:%.+]] = icmp eq i16 [[COND4]], 0
// CHECK: [[COND6:%.+]] = and i1 [[COND3]], [[COND5]]
// CHECK: [[COND7:%.+]] = icmp sgt i16 [[LANEOFFSET]], 0
// CHECK: [[CONDALG2:%.+]] = and i1 [[COND6]], [[COND7]]
//
// CHECK: [[COND8:%.+]] = or i1 [[CONDALG0]], [[CONDALG1]]
// CHECK: [[SHOULD_REDUCE:%.+]] = or i1 [[COND8]], [[CONDALG2]]
// CHECK: br i1 [[SHOULD_REDUCE]], label {{%?}}[[DO_REDUCE:.+]], label {{%?}}[[REDUCE_ELSE:.+]]
//
// CHECK: [[DO_REDUCE]]
// CHECK: [[RED_LIST1_VOID:%.+]] = bitcast [[RLT]]* [[RED_LIST]] to i8*
// CHECK: [[RED_LIST2_VOID:%.+]] = bitcast [[RLT]]* [[REMOTE_RED_LIST]] to i8*
// CHECK: call void [[PAR_REDUCTION_FUNC]](i8* [[RED_LIST1_VOID]], i8* [[RED_LIST2_VOID]])
// CHECK: br label {{%?}}[[REDUCE_CONT:.+]]
//
// CHECK: [[REDUCE_ELSE]]
// CHECK: br label {{%?}}[[REDUCE_CONT]]
//
// CHECK: [[REDUCE_CONT]]
// Now check if we should just copy over the remote reduction list
// CHECK: [[COND1:%.+]] = icmp eq i16 [[ALGVER]], 1
// CHECK: [[COND2:%.+]] = icmp uge i16 [[LANEID]], [[LANEOFFSET]]
// CHECK: [[SHOULD_COPY:%.+]] = and i1 [[COND1]], [[COND2]]
// CHECK: br i1 [[SHOULD_COPY]], label {{%?}}[[DO_COPY:.+]], label {{%?}}[[COPY_ELSE:.+]]
//
// CHECK: [[DO_COPY]]
// CHECK: [[REMOTE_ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[REMOTE_RED_LIST]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[REMOTE_ELT_VOID:%.+]] = load i8*, i8** [[REMOTE_ELT_REF]],
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[REMOTE_ELT:%.+]] = bitcast i8* [[REMOTE_ELT_VOID]] to i32*
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i32*
// CHECK: [[REMOTE_ELT_VAL:%.+]] = load i32, i32* [[REMOTE_ELT]], align
// CHECK: store i32 [[REMOTE_ELT_VAL]], i32* [[ELT]], align
//
// CHECK: [[REMOTE_ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[REMOTE_RED_LIST]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[REMOTE_ELT_VOID:%.+]] = load i8*, i8** [[REMOTE_ELT_REF]],
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[REMOTE_ELT:%.+]] = bitcast i8* [[REMOTE_ELT_VOID]] to i16*
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i16*
// CHECK: [[REMOTE_ELT_VAL:%.+]] = load i16, i16* [[REMOTE_ELT]], align
// CHECK: store i16 [[REMOTE_ELT_VAL]], i16* [[ELT]], align
// CHECK: br label {{%?}}[[COPY_CONT:.+]]
//
// CHECK: [[COPY_ELSE]]
// CHECK: br label {{%?}}[[COPY_CONT]]
//
// CHECK: [[COPY_CONT]]
// CHECK: void
//
// Inter warp copy function
// CHECK: define internal void [[PAR_WARP_COPY_FN]](i8*, i32)
// CHECK-DAG: [[LANEID:%.+]] = and i32 {{.+}}, 31
// CHECK-DAG: [[WARPID:%.+]] = ashr i32 {{.+}}, 5
// CHECK-DAG: [[RED_LIST:%.+]] = bitcast i8* {{.+}} to [[RLT]]*
// CHECK: [[IS_WARP_MASTER:%.+]] = icmp eq i32 [[LANEID]], 0
// CHECK: br i1 [[IS_WARP_MASTER]], label {{%?}}[[DO_COPY:.+]], label {{%?}}[[COPY_ELSE:.+]]
//
// [[DO_COPY]]
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i32*
//
// CHECK: [[MEDIUM_ELT:%.+]] = getelementptr inbounds [32 x i32], [32 x i32] addrspace([[SHARED_ADDRSPACE]])* [[TRANSFER_STORAGE]], i64 0, i32 [[WARPID]]
// CHECK: [[ELT_VAL:%.+]] = load i32, i32* [[ELT]], align
// CHECK: store volatile i32 [[ELT_VAL]], i32 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT]], align
// CHECK: br label {{%?}}[[COPY_CONT:.+]]
//
// CHECK: [[COPY_ELSE]]
// CHECK: br label {{%?}}[[COPY_CONT]]
//
// Barrier after copy to shared memory storage medium.
// CHECK: [[COPY_CONT]]
// CHECK: call void @__kmpc_barrier(%struct.ident_t* @
// CHECK: [[ACTIVE_WARPS:%.+]] = load i32, i32*
//
// Read into warp 0.
// CHECK: [[IS_W0_ACTIVE_THREAD:%.+]] = icmp ult i32 [[TID:%.+]], [[ACTIVE_WARPS]]
// CHECK: br i1 [[IS_W0_ACTIVE_THREAD]], label {{%?}}[[DO_READ:.+]], label {{%?}}[[READ_ELSE:.+]]
//
// CHECK: [[DO_READ]]
// CHECK: [[MEDIUM_ELT:%.+]] = getelementptr inbounds [32 x i32], [32 x i32] addrspace([[SHARED_ADDRSPACE]])* [[TRANSFER_STORAGE]], i64 0, i32 [[TID]]
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST:%.+]], i[[SZ]] 0, i[[SZ]] 0
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i32*
// CHECK: [[MEDIUM_ELT_VAL:%.+]] = load volatile i32, i32 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT]], align
// CHECK: store i32 [[MEDIUM_ELT_VAL]], i32* [[ELT]], align
// CHECK: br label {{%?}}[[READ_CONT:.+]]
//
// CHECK: [[READ_ELSE]]
// CHECK: br label {{%?}}[[READ_CONT]]
//
// CHECK: [[READ_CONT]]
// CHECK: call void @__kmpc_barrier(%struct.ident_t* @
// CHECK: [[IS_WARP_MASTER:%.+]] = icmp eq i32 [[LANEID]], 0
// CHECK: br i1 [[IS_WARP_MASTER]], label {{%?}}[[DO_COPY:.+]], label {{%?}}[[COPY_ELSE:.+]]
//
// [[DO_COPY]]
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i16*
//
// CHECK: [[MEDIUM_ELT32:%.+]] = getelementptr inbounds [32 x i32], [32 x i32] addrspace([[SHARED_ADDRSPACE]])* [[TRANSFER_STORAGE]], i64 0, i32 [[WARPID]]
// CHECK: [[MEDIUM_ELT:%.+]] = bitcast i32 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT32]] to i16 addrspace([[SHARED_ADDRSPACE]])*
// CHECK: [[ELT_VAL:%.+]] = load i16, i16* [[ELT]], align
// CHECK: store volatile i16 [[ELT_VAL]], i16 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT]], align
// CHECK: br label {{%?}}[[COPY_CONT:.+]]
//
// CHECK: [[COPY_ELSE]]
// CHECK: br label {{%?}}[[COPY_CONT]]
//
// Barrier after copy to shared memory storage medium.
// CHECK: [[COPY_CONT]]
// CHECK: call void @__kmpc_barrier(%struct.ident_t* @
// CHECK: [[ACTIVE_WARPS:%.+]] = load i32, i32*
//
// Read into warp 0.
// CHECK: [[IS_W0_ACTIVE_THREAD:%.+]] = icmp ult i32 [[TID:%.+]], [[ACTIVE_WARPS]]
// CHECK: br i1 [[IS_W0_ACTIVE_THREAD]], label {{%?}}[[DO_READ:.+]], label {{%?}}[[READ_ELSE:.+]]
//
// CHECK: [[DO_READ]]
// CHECK: [[MEDIUM_ELT32:%.+]] = getelementptr inbounds [32 x i32], [32 x i32] addrspace([[SHARED_ADDRSPACE]])* [[TRANSFER_STORAGE]], i64 0, i32 [[TID]]
// CHECK: [[MEDIUM_ELT:%.+]] = bitcast i32 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT32]] to i16 addrspace([[SHARED_ADDRSPACE]])*
// CHECK: [[ELT_REF:%.+]] = getelementptr inbounds [[RLT]], [[RLT]]* [[RED_LIST:%.+]], i[[SZ]] 0, i[[SZ]] 1
// CHECK: [[ELT_VOID:%.+]] = load i8*, i8** [[ELT_REF]],
// CHECK: [[ELT:%.+]] = bitcast i8* [[ELT_VOID]] to i16*
// CHECK: [[MEDIUM_ELT_VAL:%.+]] = load volatile i16, i16 addrspace([[SHARED_ADDRSPACE]])* [[MEDIUM_ELT]], align
// CHECK: store i16 [[MEDIUM_ELT_VAL]], i16* [[ELT]], align
// CHECK: br label {{%?}}[[READ_CONT:.+]]
//
// CHECK: [[READ_ELSE]]
// CHECK: br label {{%?}}[[READ_CONT]]
//
// CHECK: [[READ_CONT]]
// CHECK: call void @__kmpc_barrier(%struct.ident_t* @
// CHECK: ret
#endif
|
