b1c9c068f7
gcc/c/
* c-parser.c (c_parser_oacc_declare): Don't scan for
GOMP_MAP_POINTER.
* c-typeck.c (handle_omp_array_sections): Mark data clauses with
GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
zero-length subarrays.
gcc/cp/
* parser.c (cp_parser_oacc_declare): Don't scan for
GOMP_MAP_POINTER.
* semantics.c (handle_omp_array_sections): Mark data clauses with
GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
zero-length subarrays.
gcc/
* omp-low.c (lower_omp_target): Mark data clauses with
GOMP_MAP_FORCE_{PRESENT,TO,FROM,TOFROM} as potentially having
zero-length subarrays.
libgomp/
* testsuite/libgomp.oacc-c-c++-common/zero_length_subarrays.c: New
test.
From-SVN: r238376
46 lines
563 B
C
46 lines
563 B
C
/* Exercise zero-length sub-arrays. */
|
|
|
|
const int n = 10;
|
|
|
|
void
|
|
subzero_present (int *a, int n)
|
|
{
|
|
#pragma acc data present (a[0:n])
|
|
;
|
|
#pragma acc data pcopy (a[0:n])
|
|
;
|
|
#pragma acc data pcopyin (a[0:n])
|
|
;
|
|
#pragma acc data pcopyout (a[0:n])
|
|
;
|
|
|
|
}
|
|
|
|
void
|
|
subzero (int *a, int n)
|
|
{
|
|
#pragma acc data create (a[0:n])
|
|
;
|
|
#pragma acc data copy (a[0:n])
|
|
;
|
|
#pragma acc data copyin (a[0:n])
|
|
;
|
|
#pragma acc data copyout (a[0:n])
|
|
;
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
int a[n];
|
|
|
|
#pragma acc data copy (a[0:n])
|
|
{
|
|
subzero_present (a, 0);
|
|
}
|
|
|
|
subzero (a, 0);
|
|
|
|
return 0;
|
|
}
|