xref: /llvm-project/offload/test/offloading/struct_mapping_with_pointers.cpp (revision 330d8983d25d08580fc1642fea48b2473f47a9da)
1 // clang-format off
2 // RUN: %libomptarget-compilexx-generic && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-generic 2>&1 | %fcheck-generic
3 // clang-format on
4 
5 // REQUIRES: libomptarget-debug
6 
7 // UNSUPPORTED: nvptx64-nvidia-cuda
8 // UNSUPPORTED: nvptx64-nvidia-cuda-LTO
9 
10 #include <stdio.h>
11 #include <stdlib.h>
12 
13 struct Descriptor {
14   int *datum;
15   long int x;
16   int *more_datum;
17   int xi;
18   int val_datum, val_more_datum;
19   long int arr[1][30];
20   int val_arr;
21 };
22 
main()23 int main() {
24   Descriptor dat = Descriptor();
25   dat.datum = (int *)malloc(sizeof(int) * 10);
26   dat.more_datum = (int *)malloc(sizeof(int) * 20);
27   dat.xi = 3;
28   dat.arr[0][0] = 1;
29 
30   dat.datum[7] = 7;
31   dat.more_datum[17] = 17;
32   dat.datum[dat.arr[0][0]] = 0;
33 
34   /// The struct is mapped with type 0x0 when the pointer fields are mapped.
35   /// The struct is also map explicitely by the user. The second mapping by
36   /// the user must not overwrite the mapping set up for the pointer fields
37   /// when mapping the struct happens after the mapping of the pointers.
38 
39   // clang-format off
40   // CHECK: omptarget --> Entry  0: Base=[[DAT_HST_PTR_BASE:0x.*]], Begin=[[DAT_HST_PTR_BASE]], Size=288, Type=0x0, Name=unknown
41   // CHECK: omptarget --> Entry  1: Base=[[DAT_HST_PTR_BASE]], Begin=[[DAT_HST_PTR_BASE]], Size=288, Type=0x1000000000001, Name=unknown
42   // CHECK: omptarget --> Entry  2: Base=[[DAT_HST_PTR_BASE]], Begin=[[DATUM_HST_PTR_BASE:0x.*]], Size=40, Type=0x1000000000011, Name=unknown
43   // CHECK: omptarget --> Entry  3: Base=[[MORE_DATUM_HST_PTR_BASE:0x.*]], Begin=[[MORE_DATUM_HST_PTR_BEGIN:0x.*]], Size=80, Type=0x1000000000011, Name=unknown
44   // clang-format on
45 
46   /// The struct will be mapped in the same order as the above entries.
47 
48   /// First argument is the struct itself and it will be mapped once.
49 
50   // clang-format off
51   // CHECK: omptarget --> Looking up mapping(HstPtrBegin=[[DAT_HST_PTR_BASE]], Size=288)...
52   // CHECK: PluginInterface --> MemoryManagerTy::allocate: size 288 with host pointer [[DAT_HST_PTR_BASE]].
53   // CHECK: omptarget --> Creating new map entry with HstPtrBase=[[DAT_HST_PTR_BASE]], HstPtrBegin=[[DAT_HST_PTR_BASE]], TgtAllocBegin=[[DAT_DEVICE_PTR_BASE:0x.*]], TgtPtrBegin=[[DAT_DEVICE_PTR_BASE]], Size=288, DynRefCount=1, HoldRefCount=0, Name=unknown
54   // CHECK: omptarget --> Moving 288 bytes (hst:[[DAT_HST_PTR_BASE]]) -> (tgt:[[DAT_DEVICE_PTR_BASE]])
55   // clang-format on
56 
57   /// Second argument is dat.datum:
58   // clang-format off
59   // CHECK: omptarget --> Looking up mapping(HstPtrBegin=[[DATUM_HST_PTR_BASE]], Size=40)...
60   // CHECK: PluginInterface --> MemoryManagerTy::allocate: size 40 with host pointer [[DATUM_HST_PTR_BASE]].
61   // CHECK: omptarget --> Creating new map entry with HstPtrBase=[[DATUM_HST_PTR_BASE]], HstPtrBegin=[[DATUM_HST_PTR_BASE]], TgtAllocBegin=[[DATUM_DEVICE_PTR_BASE:0x.*]], TgtPtrBegin=[[DATUM_DEVICE_PTR_BASE]], Size=40, DynRefCount=1, HoldRefCount=0, Name=unknown
62   // CHECK: omptarget --> Moving 40 bytes (hst:[[DATUM_HST_PTR_BASE]]) -> (tgt:[[DATUM_DEVICE_PTR_BASE]])
63   // clang-format on
64 
65   /// Third argument is dat.more_datum:
66   // clang-format off
67   // CHECK: omptarget --> Looking up mapping(HstPtrBegin=[[MORE_DATUM_HST_PTR_BEGIN]], Size=80)...
68   // CHECK: PluginInterface --> MemoryManagerTy::allocate: size 80 with host pointer [[MORE_DATUM_HST_PTR_BEGIN]].
69   // CHECK: omptarget --> Creating new map entry with HstPtrBase=[[MORE_DATUM_HST_PTR_BEGIN]], HstPtrBegin=[[MORE_DATUM_HST_PTR_BEGIN]], TgtAllocBegin=[[MORE_DATUM_DEVICE_PTR_BEGIN:0x.*]], TgtPtrBegin=[[MORE_DATUM_DEVICE_PTR_BEGIN]], Size=80, DynRefCount=1, HoldRefCount=0, Name=unknown
70   // CHECK: omptarget --> Moving 80 bytes (hst:[[MORE_DATUM_HST_PTR_BEGIN]]) -> (tgt:[[MORE_DATUM_DEVICE_PTR_BEGIN]])
71   // clang-format on
72 
73 #pragma omp target enter data map(to : dat.datum[ : 10])                       \
74     map(to : dat.more_datum[ : 20]) map(to : dat)
75 
76   /// Checks induced by having a target region:
77   // clang-format off
78   // CHECK: omptarget --> Entry  0: Base=[[DAT_HST_PTR_BASE]], Begin=[[DAT_HST_PTR_BASE]], Size=288, Type=0x223, Name=unknown
79   // CHECK: omptarget --> Mapping exists (implicit) with HstPtrBegin=[[DAT_HST_PTR_BASE]], TgtPtrBegin=[[DAT_DEVICE_PTR_BASE]], Size=288, DynRefCount=2 (incremented), HoldRefCount=0, Name=unknown
80   // CHECK: omptarget --> Obtained target argument [[DAT_DEVICE_PTR_BASE]] from host pointer [[DAT_HST_PTR_BASE]]
81   // clang-format on
82 
83 #pragma omp target
84   {
85     dat.xi = 4;
86     dat.datum[7]++;
87     dat.more_datum[17]++;
88     dat.val_datum = dat.datum[7];
89     dat.val_more_datum = dat.more_datum[17];
90     dat.datum[dat.arr[0][0]] = dat.xi;
91     dat.val_arr = dat.datum[dat.arr[0][0]];
92   }
93 
94   /// Post-target region checks:
95   // clang-format off
96   // CHECK: omptarget --> Mapping exists with HstPtrBegin=[[DAT_HST_PTR_BASE]], TgtPtrBegin=[[DAT_DEVICE_PTR_BASE]], Size=288, DynRefCount=1 (decremented), HoldRefCount=0
97   // clang-format on
98 
99 #pragma omp target exit data map(from : dat)
100 
101   /// Target data end checks:
102   // clang-format off
103   // CHECK: omptarget --> Mapping exists with HstPtrBegin=[[DAT_HST_PTR_BASE]], TgtPtrBegin=[[DAT_DEVICE_PTR_BASE]], Size=288, DynRefCount=0 (decremented, delayed deletion), HoldRefCount=0
104   // CHECK: omptarget --> Moving 288 bytes (tgt:[[DAT_DEVICE_PTR_BASE]]) -> (hst:[[DAT_HST_PTR_BASE]])
105   // clang-format on
106 
107   // CHECK: dat.xi = 4
108   // CHECK: dat.val_datum = 8
109   // CHECK: dat.val_more_datum = 18
110   // CHECK: dat.datum[dat.arr[0][0]] = 0
111   // CHECK: dat.val_arr = 4
112 
113   printf("dat.xi = %d\n", dat.xi);
114   printf("dat.val_datum = %d\n", dat.val_datum);
115   printf("dat.val_more_datum = %d\n", dat.val_more_datum);
116   printf("dat.datum[dat.arr[0][0]] = %d\n", dat.datum[dat.arr[0][0]]);
117   printf("dat.val_arr = %d\n", dat.val_arr);
118 
119   return 0;
120 }
121