nvptx_data_sharing.cpp
6.03 KB
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
// Test device global memory data sharing codegen.
///==========================================================================///
// 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 - -disable-llvm-optzns | FileCheck %s --check-prefix CK1
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
void test_ds(){
#pragma omp target
{
int a = 10;
#pragma omp parallel
{
a = 1000;
}
int b = 100;
int c = 1000;
#pragma omp parallel private(c)
{
int *c1 = &c;
b = a + 10000;
}
}
}
// CK1: [[MEM_TY:%.+]] = type { [128 x i8] }
// CK1-DAG: [[SHARED_GLOBAL_RD:@.+]] = common addrspace(3) global [[MEM_TY]] zeroinitializer
// CK1-DAG: [[KERNEL_PTR:@.+]] = internal addrspace(3) global i8* null
// CK1-DAG: [[KERNEL_SIZE:@.+]] = internal unnamed_addr constant i64 8
// CK1-DAG: [[KERNEL_SHARED:@.+]] = internal unnamed_addr constant i16 1
/// ========= In the worker function ========= ///
// CK1: {{.*}}define internal void @__omp_offloading{{.*}}test_ds{{.*}}_worker()
// CK1: call void @__kmpc_barrier_simple_spmd(%struct.ident_t* null, i32 0)
// CK1-NOT: call void @__kmpc_data_sharing_init_stack
/// ========= In the kernel function ========= ///
// CK1: {{.*}}define weak void @__omp_offloading{{.*}}test_ds{{.*}}()
// CK1: [[SHAREDARGS1:%.+]] = alloca i8**
// CK1: [[SHAREDARGS2:%.+]] = alloca i8**
// CK1: call void @__kmpc_kernel_init
// CK1: call void @__kmpc_data_sharing_init_stack
// CK1: [[SHARED_MEM_FLAG:%.+]] = load i16, i16* [[KERNEL_SHARED]],
// CK1: [[SIZE:%.+]] = load i64, i64* [[KERNEL_SIZE]],
// CK1: call void @__kmpc_get_team_static_memory(i16 0, i8* addrspacecast (i8 addrspace(3)* getelementptr inbounds ([[MEM_TY]], [[MEM_TY]] addrspace(3)* [[SHARED_GLOBAL_RD]], i32 0, i32 0, i32 0) to i8*), i64 [[SIZE]], i16 [[SHARED_MEM_FLAG]], i8** addrspacecast (i8* addrspace(3)* [[KERNEL_PTR]] to i8**))
// CK1: [[KERNEL_RD:%.+]] = load i8*, i8* addrspace(3)* [[KERNEL_PTR]],
// CK1: [[GLOBALSTACK:%.+]] = getelementptr inbounds i8, i8* [[KERNEL_RD]], i64 0
// CK1: [[GLOBALSTACK2:%.+]] = bitcast i8* [[GLOBALSTACK]] to %struct._globalized_locals_ty*
// CK1: [[A:%.+]] = getelementptr inbounds %struct._globalized_locals_ty, %struct._globalized_locals_ty* [[GLOBALSTACK2]], i32 0, i32 0
// CK1: [[B:%.+]] = getelementptr inbounds %struct._globalized_locals_ty, %struct._globalized_locals_ty* [[GLOBALSTACK2]], i32 0, i32 1
// CK1: store i32 10, i32* [[A]]
// CK1: call void @__kmpc_kernel_prepare_parallel({{.*}}, i16 1)
// CK1: call void @__kmpc_begin_sharing_variables(i8*** [[SHAREDARGS1]], i64 1)
// CK1: [[SHARGSTMP1:%.+]] = load i8**, i8*** [[SHAREDARGS1]]
// CK1: [[SHARGSTMP2:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP1]], i64 0
// CK1: [[SHAREDVAR:%.+]] = bitcast i32* [[A]] to i8*
// CK1: store i8* [[SHAREDVAR]], i8** [[SHARGSTMP2]]
// CK1: call void @__kmpc_barrier_simple_spmd(%struct.ident_t* null, i32 0)
// CK1: call void @__kmpc_barrier_simple_spmd(%struct.ident_t* null, i32 0)
// CK1: call void @__kmpc_end_sharing_variables()
// CK1: store i32 100, i32* [[B]]
// CK1: call void @__kmpc_kernel_prepare_parallel({{.*}}, i16 1)
// CK1: call void @__kmpc_begin_sharing_variables(i8*** [[SHAREDARGS2]], i64 2)
// CK1: [[SHARGSTMP3:%.+]] = load i8**, i8*** [[SHAREDARGS2]]
// CK1: [[SHARGSTMP4:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP3]], i64 0
// CK1: [[SHAREDVAR1:%.+]] = bitcast i32* [[B]] to i8*
// CK1: store i8* [[SHAREDVAR1]], i8** [[SHARGSTMP4]]
// CK1: [[SHARGSTMP12:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP3]], i64 1
// CK1: [[SHAREDVAR2:%.+]] = bitcast i32* [[A]] to i8*
// CK1: store i8* [[SHAREDVAR2]], i8** [[SHARGSTMP12]]
// CK1: call void @__kmpc_barrier_simple_spmd(%struct.ident_t* null, i32 0)
// CK1: call void @__kmpc_barrier_simple_spmd(%struct.ident_t* null, i32 0)
// CK1: call void @__kmpc_end_sharing_variables()
// CK1: [[SHARED_MEM_FLAG:%.+]] = load i16, i16* [[KERNEL_SHARED]],
// CK1: call void @__kmpc_restore_team_static_memory(i16 0, i16 [[SHARED_MEM_FLAG]])
// CK1: call void @__kmpc_kernel_deinit(i16 1)
/// ========= In the data sharing wrapper function ========= ///
// CK1: {{.*}}define internal void @__omp_outlined{{.*}}wrapper({{.*}})
// CK1: [[SHAREDARGS4:%.+]] = alloca i8**
// CK1: call void @__kmpc_get_shared_variables(i8*** [[SHAREDARGS4]])
// CK1: [[SHARGSTMP13:%.+]] = load i8**, i8*** [[SHAREDARGS4]]
// CK1: [[SHARGSTMP14:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP13]], i64 0
// CK1: [[SHARGSTMP15:%.+]] = bitcast i8** [[SHARGSTMP14]] to i32**
// CK1: [[SHARGSTMP16:%.+]] = load i32*, i32** [[SHARGSTMP15]]
// CK1: call void @__omp_outlined__{{.*}}({{.*}}, i32* [[SHARGSTMP16]])
/// outlined function for the second parallel region ///
// CK1: define internal void @{{.+}}(i32* noalias %{{.+}}, i32* noalias %{{.+}}, i32* dereferenceable{{.+}}, i32* dereferenceable{{.+}})
// CK1-NOT: call i8* @__kmpc_data_sharing_push_stack(
// CK1: [[C_ADDR:%.+]] = alloca i32,
// CK1: store i32* [[C_ADDR]], i32** %
// CK1i-NOT: call void @__kmpc_data_sharing_pop_stack(
/// ========= In the data sharing wrapper function ========= ///
// CK1: {{.*}}define internal void @__omp_outlined{{.*}}wrapper({{.*}})
// CK1: [[SHAREDARGS3:%.+]] = alloca i8**
// CK1: call void @__kmpc_get_shared_variables(i8*** [[SHAREDARGS3]])
// CK1: [[SHARGSTMP5:%.+]] = load i8**, i8*** [[SHAREDARGS3]]
// CK1: [[SHARGSTMP6:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP5]], i64 0
// CK1: [[SHARGSTMP7:%.+]] = bitcast i8** [[SHARGSTMP6]] to i32**
// CK1: [[SHARGSTMP8:%.+]] = load i32*, i32** [[SHARGSTMP7]]
// CK1: [[SHARGSTMP9:%.+]] = getelementptr inbounds i8*, i8** [[SHARGSTMP5]], i64 1
// CK1: [[SHARGSTMP10:%.+]] = bitcast i8** [[SHARGSTMP9]] to i32**
// CK1: [[SHARGSTMP11:%.+]] = load i32*, i32** [[SHARGSTMP10]]
// CK1: call void @__omp_outlined__{{.*}}({{.*}}, i32* [[SHARGSTMP8]], i32* [[SHARGSTMP11]])
#endif