summaryrefslogtreecommitdiffstats
path: root/test/OpenMP/distribute_codegen.cpp
blob: 37f00f09178b0bc6a329fcf47ab92ee888bcea36 (plain)
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
// Test host codegen.
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-64
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-64  --check-prefix HCHECK
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32  --check-prefix HCHECK
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32 --check-prefix HCHECK

// Test target codegen - host bc file has to be created first. (no significant differences with host version of target region)
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm-bc %s -o %t-x86-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s

// expected-no-diagnostics
#ifndef HEADER
#define HEADER

// CHECK-DAG: %ident_t = type { i32, i32, i32, i32, i8* }
// CHECK-DAG: [[STR:@.+]] = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00"
// CHECK-DAG: [[DEF_LOC_0:@.+]] = private unnamed_addr constant %ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* [[STR]], i32 0, i32 0) }

// CHECK-LABEL: define {{.*void}} @{{.*}}without_schedule_clause{{.*}}(float* {{.+}}, float* {{.+}}, float* {{.+}}, float* {{.+}})
void without_schedule_clause(float *a, float *b, float *c, float *d) {
  #pragma omp target
  #pragma omp teams
  #pragma omp distribute
  for (int i = 33; i < 32000000; i += 7) {
    a[i] = b[i] * c[i] * d[i];
  }
}

// CHECK: define {{.*}}void @.omp_outlined.(i32* noalias [[GBL_TIDP:%.+]], i32* noalias [[BND_TID:%.+]], float** dereferenceable({{[0-9]+}}) [[APTR:%.+]], float** dereferenceable({{[0-9]+}}) [[BPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[CPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[DPTR:%.+]])
// CHECK:  [[TID_ADDR:%.+]] = alloca i32*
// CHECK:  [[IV:%.+iv]] = alloca i32
// CHECK:  [[LB:%.+lb]] = alloca i32
// CHECK:  [[UB:%.+ub]] = alloca i32
// CHECK:  [[ST:%.+stride]] = alloca i32
// CHECK:  [[LAST:%.+last]] = alloca i32
// CHECK-DAG:  store i32* [[GBL_TIDP]], i32** [[TID_ADDR]]
// CHECK-DAG:  store i32 0, i32* [[LB]]
// CHECK-DAG:  store i32 4571423, i32* [[UB]]
// CHECK-DAG:  store i32 1, i32* [[ST]]
// CHECK-DAG:  store i32 0, i32* [[LAST]]
// CHECK-DAG:  [[GBL_TID:%.+]] = load i32*, i32** [[TID_ADDR]]
// CHECK-DAG:  [[GBL_TIDV:%.+]] = load i32, i32* [[GBL_TID]]
// CHECK:  call void @__kmpc_for_static_init_{{.+}}(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]], i32 92, i32* %.omp.is_last, i32* %.omp.lb, i32* %.omp.ub, i32* %.omp.stride, i32 1, i32 1)
// CHECK-DAG:  [[UBV0:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  [[USWITCH:%.+]] = icmp sgt i32 [[UBV0]], 4571423
// CHECK:  br i1 [[USWITCH]], label %[[BBCT:.+]], label %[[BBCF:.+]]
// CHECK-DAG:  [[BBCT]]:
// CHECK-DAG:  br label %[[BBCE:.+]]
// CHECK-DAG:  [[BBCF]]:
// CHECK-DAG:  [[UBV1:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  br label %[[BBCE]]
// CHECK:  [[BBCE]]:
// CHECK:  [[SELUB:%.+]] = phi i32 [ 4571423, %[[BBCT]] ], [ [[UBV1]], %[[BBCF]] ]
// CHECK:  store i32 [[SELUB]], i32* [[UB]]
// CHECK:  [[LBV0:%.+]] = load i32, i32* [[LB]]
// CHECK:  store i32 [[LBV0]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR:.+]]
// CHECK:  [[BBINNFOR]]:
// CHECK:  [[IVVAL0:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[UBV2:%.+]] = load i32, i32* [[UB]]
// CHECK:  [[IVLEUB:%.+]] = icmp sle i32 [[IVVAL0]], [[UBV2]]
// CHECK:  br i1 [[IVLEUB]], label %[[BBINNBODY:.+]], label %[[BBINNEND:.+]]
// CHECK:  [[BBINNBODY]]:
// CHECK:  {{.+}} = load i32, i32* [[IV]]
// ... loop body ...
// CHECK:  br label %[[BBBODYCONT:.+]]
// CHECK:  [[BBBODYCONT]]:
// CHECK:  br label %[[BBINNINC:.+]]
// CHECK:  [[BBINNINC]]:
// CHECK:  [[IVVAL1:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[IVINC:%.+]] = add nsw i32 [[IVVAL1]], 1
// CHECK:  store i32 [[IVINC]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR]]
// CHECK:  [[BBINNEND]]:
// CHECK:  br label %[[LPEXIT:.+]]
// CHECK:  [[LPEXIT]]:
// CHECK:  call void @__kmpc_for_static_fini(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]])
// CHECK:  ret void


// CHECK-LABEL: define {{.*void}} @{{.*}}static_not_chunked{{.*}}(float* {{.+}}, float* {{.+}}, float* {{.+}}, float* {{.+}})
void static_not_chunked(float *a, float *b, float *c, float *d) {
  #pragma omp target
  #pragma omp teams
  #pragma omp distribute dist_schedule(static)
  for (int i = 32000000; i > 33; i += -7) {
        a[i] = b[i] * c[i] * d[i];
  }
}

// CHECK: define {{.*}}void @.omp_outlined.{{.*}}(i32* noalias [[GBL_TIDP:%.+]], i32* noalias [[BND_TID:%.+]], float** dereferenceable({{[0-9]+}}) [[APTR:%.+]], float** dereferenceable({{[0-9]+}}) [[BPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[CPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[DPTR:%.+]])
// CHECK:  [[TID_ADDR:%.+]] = alloca i32*
// CHECK:  [[IV:%.+iv]] = alloca i32
// CHECK:  [[LB:%.+lb]] = alloca i32
// CHECK:  [[UB:%.+ub]] = alloca i32
// CHECK:  [[ST:%.+stride]] = alloca i32
// CHECK:  [[LAST:%.+last]] = alloca i32
// CHECK-DAG:  store i32* [[GBL_TIDP]], i32** [[TID_ADDR]]
// CHECK-DAG:  store i32 0, i32* [[LB]]
// CHECK-DAG:  store i32 4571423, i32* [[UB]]
// CHECK-DAG:  store i32 1, i32* [[ST]]
// CHECK-DAG:  store i32 0, i32* [[LAST]]
// CHECK-DAG:  [[GBL_TID:%.+]] = load i32*, i32** [[TID_ADDR]]
// CHECK-DAG:  [[GBL_TIDV:%.+]] = load i32, i32* [[GBL_TID]]
// CHECK:  call void @__kmpc_for_static_init_{{.+}}(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]], i32 92, i32* %.omp.is_last, i32* %.omp.lb, i32* %.omp.ub, i32* %.omp.stride, i32 1, i32 1)
// CHECK-DAG:  [[UBV0:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  [[USWITCH:%.+]] = icmp sgt i32 [[UBV0]], 4571423
// CHECK:  br i1 [[USWITCH]], label %[[BBCT:.+]], label %[[BBCF:.+]]
// CHECK-DAG:  [[BBCT]]:
// CHECK-DAG:  br label %[[BBCE:.+]]
// CHECK-DAG:  [[BBCF]]:
// CHECK-DAG:  [[UBV1:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  br label %[[BBCE]]
// CHECK:  [[BBCE]]:
// CHECK:  [[SELUB:%.+]] = phi i32 [ 4571423, %[[BBCT]] ], [ [[UBV1]], %[[BBCF]] ]
// CHECK:  store i32 [[SELUB]], i32* [[UB]]
// CHECK:  [[LBV0:%.+]] = load i32, i32* [[LB]]
// CHECK:  store i32 [[LBV0]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR:.+]]
// CHECK:  [[BBINNFOR]]:
// CHECK:  [[IVVAL0:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[UBV2:%.+]] = load i32, i32* [[UB]]
// CHECK:  [[IVLEUB:%.+]] = icmp sle i32 [[IVVAL0]], [[UBV2]]
// CHECK:  br i1 [[IVLEUB]], label %[[BBINNBODY:.+]], label %[[BBINNEND:.+]]
// CHECK:  [[BBINNBODY]]:
// CHECK:  {{.+}} = load i32, i32* [[IV]]
// ... loop body ...
// CHECK:  br label %[[BBBODYCONT:.+]]
// CHECK:  [[BBBODYCONT]]:
// CHECK:  br label %[[BBINNINC:.+]]
// CHECK:  [[BBINNINC]]:
// CHECK:  [[IVVAL1:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[IVINC:%.+]] = add nsw i32 [[IVVAL1]], 1
// CHECK:  store i32 [[IVINC]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR]]
// CHECK:  [[BBINNEND]]:
// CHECK:  br label %[[LPEXIT:.+]]
// CHECK:  [[LPEXIT]]:
// CHECK:  call void @__kmpc_for_static_fini(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]])
// CHECK:  ret void


// CHECK-LABEL: define {{.*void}} @{{.*}}static_chunked{{.*}}(float* {{.+}}, float* {{.+}}, float* {{.+}}, float* {{.+}})
void static_chunked(float *a, float *b, float *c, float *d) {
  #pragma omp target
  #pragma omp teams
#pragma omp distribute dist_schedule(static, 5)
  for (unsigned i = 131071; i <= 2147483647; i += 127) {
    a[i] = b[i] * c[i] * d[i];
  }
}

// CHECK: define {{.*}}void @.omp_outlined.{{.*}}(i32* noalias [[GBL_TIDP:%.+]], i32* noalias [[BND_TID:%.+]], float** dereferenceable({{[0-9]+}}) [[APTR:%.+]], float** dereferenceable({{[0-9]+}}) [[BPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[CPTR:%.+]], float** dereferenceable({{[0-9]+}}) [[DPTR:%.+]])
// CHECK:  [[TID_ADDR:%.+]] = alloca i32*
// CHECK:  [[IV:%.+iv]] = alloca i32
// CHECK:  [[LB:%.+lb]] = alloca i32
// CHECK:  [[UB:%.+ub]] = alloca i32
// CHECK:  [[ST:%.+stride]] = alloca i32
// CHECK:  [[LAST:%.+last]] = alloca i32
// CHECK-DAG:  store i32* [[GBL_TIDP]], i32** [[TID_ADDR]]
// CHECK-DAG:  store i32 0, i32* [[LB]]
// CHECK-DAG:  store i32 16908288, i32* [[UB]]
// CHECK-DAG:  store i32 1, i32* [[ST]]
// CHECK-DAG:  store i32 0, i32* [[LAST]]
// CHECK-DAG:  [[GBL_TID:%.+]] = load i32*, i32** [[TID_ADDR]]
// CHECK-DAG:  [[GBL_TIDV:%.+]] = load i32, i32* [[GBL_TID]]
// CHECK:  call void @__kmpc_for_static_init_{{.+}}(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]], i32 91, i32* %.omp.is_last, i32* %.omp.lb, i32* %.omp.ub, i32* %.omp.stride, i32 1, i32 5)
// CHECK-DAG:  [[UBV0:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  [[USWITCH:%.+]] = icmp ugt i32 [[UBV0]], 16908288
// CHECK:  br i1 [[USWITCH]], label %[[BBCT:.+]], label %[[BBCF:.+]]
// CHECK-DAG:  [[BBCT]]:
// CHECK-DAG:  br label %[[BBCE:.+]]
// CHECK-DAG:  [[BBCF]]:
// CHECK-DAG:  [[UBV1:%.+]] = load i32, i32* [[UB]]
// CHECK-DAG:  br label %[[BBCE]]
// CHECK:  [[BBCE]]:
// CHECK:  [[SELUB:%.+]] = phi i32 [ 16908288, %[[BBCT]] ], [ [[UBV1]], %[[BBCF]] ]
// CHECK:  store i32 [[SELUB]], i32* [[UB]]
// CHECK:  [[LBV0:%.+]] = load i32, i32* [[LB]]
// CHECK:  store i32 [[LBV0]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR:.+]]
// CHECK:  [[BBINNFOR]]:
// CHECK:  [[IVVAL0:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[UBV2:%.+]] = load i32, i32* [[UB]]
// CHECK:  [[IVLEUB:%.+]] = icmp ule i32 [[IVVAL0]], [[UBV2]]
// CHECK:  br i1 [[IVLEUB]], label %[[BBINNBODY:.+]], label %[[BBINNEND:.+]]
// CHECK:  [[BBINNBODY]]:
// CHECK:  {{.+}} = load i32, i32* [[IV]]
// ... loop body ...
// CHECK:  br label %[[BBBODYCONT:.+]]
// CHECK:  [[BBBODYCONT]]:
// CHECK:  br label %[[BBINNINC:.+]]
// CHECK:  [[BBINNINC]]:
// CHECK:  [[IVVAL1:%.+]] = load i32, i32* [[IV]]
// CHECK:  [[IVINC:%.+]] = add i32 [[IVVAL1]], 1
// CHECK:  store i32 [[IVINC]], i32* [[IV]]
// CHECK:  br label %[[BBINNFOR]]
// CHECK:  [[BBINNEND]]:
// CHECK:  br label %[[LPEXIT:.+]]
// CHECK:  [[LPEXIT]]:
// CHECK:  call void @__kmpc_for_static_fini(%ident_t* [[DEF_LOC_0]], i32 [[GBL_TIDV]])
// CHECK:  ret void

// CHECK-LABEL: test_precond
void test_precond() {
  char a = 0;
  #pragma omp target
  #pragma omp teams
  #pragma omp distribute
  for(char i = a; i < 10; ++i);
}

// a is passed as a parameter to the outlined functions
// CHECK:  define {{.*}}void @.omp_outlined.{{.*}}(i32* noalias [[GBL_TIDP:%.+]], i32* noalias [[BND_TID:%.+]], i8* dereferenceable({{[0-9]+}}) [[APARM:%.+]])
// CHECK:  store i8* [[APARM]], i8** [[APTRADDR:%.+]]
// ..many loads of %0..
// CHECK:  [[A2:%.+]] = load i8*, i8** [[APTRADDR]]
// CHECK:  [[AVAL0:%.+]] = load i8, i8* [[A2]]
// CHECK:  store i8 [[AVAL0]], i8* [[CAP_EXPR:%.+]],
// CHECK:  [[AVAL1:%.+]] = load i8, i8* [[CAP_EXPR]]
// CHECK:  load i8, i8* [[CAP_EXPR]]
// CHECK:  [[AVAL2:%.+]] = load i8, i8* [[CAP_EXPR]]
// CHECK:  [[ACONV:%.+]] = sext i8 [[AVAL2]] to i32
// CHECK:  [[ACMP:%.+]] = icmp slt i32 [[ACONV]], 10
// CHECK:  br i1 [[ACMP]], label %[[PRECOND_THEN:.+]], label %[[PRECOND_END:.+]]
// CHECK:  [[PRECOND_THEN]]
// CHECK:  call void @__kmpc_for_static_init_4
// CHECK:  call void @__kmpc_for_static_fini
// CHECK:  [[PRECOND_END]]

// no templates for now, as these require special handling in target regions and/or declare target

// HCHECK-LABEL: fint
// HCHECK: call {{.*}}i32 {{.+}}ftemplate
// HCHECK: ret i32

// HCHECK: load i16, i16*
// HCHECK: store i16 %
// HCHECK: call i32 @__tgt_target_teams(
// HCHECK: call void @__kmpc_for_static_init_4(
template <typename T>
T ftemplate() {
  short aa = 0;

#pragma omp target
#pragma omp teams
#pragma omp distribute dist_schedule(static, aa)
  for (int i = 0; i < 100; i++) {
  }
  return T();
}

int fint(void) { return ftemplate<int>(); }

#endif