231 lines
7.7 KiB
C
231 lines
7.7 KiB
C
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// RUN: %libomptarget-compile-generic -fopenmp-extensions
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// RUN: %libomptarget-run-generic | %fcheck-generic -strict-whitespace
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#include <omp.h>
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#include <stdio.h>
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#pragma omp begin declare target
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#define MAX_NAME_SIZE 100
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char N1[MAX_NAME_SIZE], N2[MAX_NAME_SIZE];
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int V1, V2;
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void copy_name(char *dst, char *src) {
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int i;
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for (i = 0; i < MAX_NAME_SIZE - 1 && src[i]; ++i)
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dst[i] = src[i];
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dst[i] = 0;
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}
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#pragma omp end declare target
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#define CHECK_PRESENCE(Var1, Var2, Var3) \
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printf(" presence of %s, %s, %s: %d, %d, %d\n", #Var1, #Var2, #Var3, \
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omp_target_is_present(&(Var1), omp_get_default_device()), \
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omp_target_is_present(&(Var2), omp_get_default_device()), \
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omp_target_is_present(&(Var3), omp_get_default_device()))
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#define CHECK_VALUES_HELPER(N1, N2, Var1, Var2) \
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printf(" values of %s, %s: %d, %d\n", N1, N2, (Var1), (Var2))
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#define CHECK_VALUES_DELAYED(Var1, Var2) \
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copy_name(N1, #Var1); \
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copy_name(N2, #Var2); \
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V1 = (Var1); \
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V2 = (Var2);
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#define CHECK_DELAYED_VALUES() \
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_Pragma("omp target update from(N1, N2, V1, V2)") \
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CHECK_VALUES_HELPER(N1, N2, V1, V2)
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#define CHECK_VALUES(Var1, Var2) \
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CHECK_VALUES_HELPER(#Var1, #Var2, (Var1), (Var2))
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int main() {
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struct S {
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int i;
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int j;
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} s;
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// CHECK: presence of s, s.i, s.j: 0, 0, 0
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CHECK_PRESENCE(s, s.i, s.j);
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// =======================================================================
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// Check that ompx_hold keeps entire struct present.
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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printf("check: ompx_hold only on first member\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(tofrom : s) map(ompx_hold, tofrom : s.i) \
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map(tofrom : s.j)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(tofrom : s)
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{
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s.i = 21;
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s.j = 31;
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}
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#pragma omp target exit data map(delete : s, s.i)
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// ompx_hold on s.i applies to all of s.
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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printf("check: ompx_hold only on last member\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(tofrom : s) map(tofrom : s.i) \
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map(ompx_hold, tofrom : s.j)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(tofrom : s)
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{
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s.i = 21;
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s.j = 31;
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}
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#pragma omp target exit data map(delete : s, s.i)
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// ompx_hold on s.j applies to all of s.
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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printf("check: ompx_hold only on struct\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(ompx_hold, tofrom : s) map(tofrom : s.i) \
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map(tofrom : s.j)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(tofrom : s)
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{
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s.i = 21;
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s.j = 31;
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}
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#pragma omp target exit data map(delete : s, s.i)
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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// =======================================================================
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// Check that transfer to/from host checks reference count correctly.
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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printf("check: parent DynRefCount=1 is not sufficient for transfer\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(ompx_hold, tofrom : s)
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#pragma omp target data map(ompx_hold, tofrom : s)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(from : s.i, s.j)
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{
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s.i = 21;
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s.j = 31;
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} // No transfer here even though parent's DynRefCount=1.
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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#pragma omp target map(to : s.i, s.j)
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{ // No transfer here even though parent's DynRefCount=1.
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_VALUES_DELAYED(s.i, s.j);
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}
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CHECK_DELAYED_VALUES();
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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printf("check: parent HoldRefCount=1 is not sufficient for transfer\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(tofrom : s)
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#pragma omp target data map(tofrom : s)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(ompx_hold, from : s.i, s.j)
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{
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s.i = 21;
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s.j = 31;
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} // No transfer here even though parent's HoldRefCount=1.
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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#pragma omp target map(ompx_hold, to : s.i, s.j)
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{ // No transfer here even though parent's HoldRefCount=1.
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_VALUES_DELAYED(s.i, s.j);
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}
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CHECK_DELAYED_VALUES();
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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// -----------------------------------------------------------------------
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// CHECK-LABEL: check:{{.*}}
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//
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// At the beginning of a region, if the parent's TotalRefCount=1, then the
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// transfer should happen.
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//
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// At the end of a region, it also must be true that the reference count being
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// decremented is the reference count that is 1.
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printf("check: parent TotalRefCount=1 is not sufficient for transfer\n");
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s.i = 20;
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s.j = 30;
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#pragma omp target data map(ompx_hold, tofrom : s)
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{
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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CHECK_PRESENCE(s, s.i, s.j);
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#pragma omp target map(ompx_hold, tofrom : s.i, s.j)
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{
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s.i = 21;
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s.j = 31;
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}
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#pragma omp target exit data map(from : s.i, s.j)
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// No transfer here even though parent's TotalRefCount=1.
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// CHECK-NEXT: presence of s, s.i, s.j: 1, 1, 1
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// CHECK-NEXT: values of s.i, s.j: 20, 30
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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}
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// CHECK-NEXT: presence of s, s.i, s.j: 0, 0, 0
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// CHECK-NEXT: values of s.i, s.j: 21, 31
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CHECK_PRESENCE(s, s.i, s.j);
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CHECK_VALUES(s.i, s.j);
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return 0;
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}
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