xref: /llvm-project/offload/test/mapping/target_derefence_array_pointrs.cpp (revision 330d8983d25d08580fc1642fea48b2473f47a9da)
1 // RUN: %libomptarget-compilexx-generic -fopenmp-version=51
2 // RUN: %libomptarget-run-generic 2>&1 \
3 // RUN: | %fcheck-generic
4 
5 // FIXME: This is currently broken on all GPU targets
6 // UNSUPPORTED: amdgcn-amd-amdhsa
7 // UNSUPPORTED: nvptx64-nvidia-cuda
8 // UNSUPPORTED: nvptx64-nvidia-cuda-LTO
9 
10 #include <stdio.h>
11 #include <stdlib.h>
12 
foo(int ** t1d)13 void foo(int **t1d) {
14   int ***t2d = &t1d;
15   int ****t3d = &t2d;
16   *t1d = (int *)malloc(3 * sizeof(int));
17   int j, a = 0, b = 0;
18 
19   for (j = 0; j < 3; j++)
20     (*t1d)[j] = 0;
21 #pragma omp target map(tofrom : (*t1d)[0 : 3])
22   { (*t1d)[1] = 1; }
23   // CHECK: 1
24   printf("%d\n", (*t1d)[1]);
25 #pragma omp target map(tofrom : (**t2d)[0 : 3])
26   { (**t2d)[1] = 2; }
27   // CHECK: 2
28   printf("%d\n", (**t2d)[1]);
29 #pragma omp target map(tofrom : (***t3d)[0 : 3])
30   { (***t3d)[1] = 3; }
31   // CHECK: 3
32   printf("%d\n", (***t3d)[1]);
33 #pragma omp target map(tofrom : (**t1d))
34   { (*t1d)[0] = 4; }
35   // CHECK: 4
36   printf("%d\n", (*t1d)[0]);
37 #pragma omp target map(tofrom : (*(*(t1d + a) + b)))
38   { *(*(t1d + a) + b) = 5; }
39   // CHECK: 5
40   printf("%d\n", *(*(t1d + a) + b));
41 }
42 
43 typedef int(T)[3];
bar()44 void bar() {
45   T **a;
46   int b[2][3];
47   int(*p)[3] = b;
48   a = &p;
49   for (int i = 0; i < 3; i++) {
50     (**a)[1] = i;
51   }
52 #pragma omp target map((**a)[ : 3])
53   {
54     (**a)[1] = 6;
55     // CHECK: 6
56     printf("%d\n", (**a)[1]);
57   }
58 }
59 
60 struct SSA {
61   int i;
62   SSA *sa;
SSASSA63   SSA() {
64     i = 1;
65     sa = this;
66   }
67 };
68 
zoo(int ** f,SSA * sa)69 void zoo(int **f, SSA *sa) {
70   int *t = *f;
71   f = (int **)malloc(sa->i * 4 * sizeof(int));
72   t = (int *)malloc(sa->i * sizeof(int));
73   *(f + sa->i + 1) = t;
74   *(sa->sa->i + *(f + sa->i + 1)) = 4;
75   printf("%d\n", *(sa->sa->i + *(1 + sa->i + f)));
76 #pragma omp target map(sa, *(sa->sa->i + *(1 + sa->i + f)))
77   { *(sa->sa->i + *(1 + sa->i + f)) = 7; }
78   // CHECK: 7
79   printf("%d\n", *(sa->sa->i + *(1 + sa->i + f)));
80 }
81 
xoo()82 void xoo() {
83   int *x = 0;
84   SSA *sa = new SSA();
85   zoo(&x, sa);
86 }
87 
yoo(int ** x)88 void yoo(int **x) {
89   *x = (int *)malloc(2 * sizeof(int));
90 #pragma omp target map(**x)
91   {
92     **x = 8;
93     // CHECK: 8
94     printf("%d\n", **x);
95   }
96 #pragma omp target map(*(*x + 1))
97   {
98     *(*x + 1) = 9;
99     // CHECK: 9
100     printf("%d\n", *(*x + 1));
101   }
102 }
103 
main()104 int main() {
105   int *data = 0;
106   foo(&data);
107   bar();
108   xoo();
109   yoo(&data);
110 }
111