// 'atomic' access of thread-private variable /* { dg-additional-options "-fopt-info-note-omp" } { dg-additional-options "--param=openacc-privatization=noisy" } { dg-additional-options "-foffload=-fopt-info-note-omp" } { dg-additional-options "-foffload=--param=openacc-privatization=noisy" } for testing/documenting aspects of that functionality. */ #include int main (void) { int res; res = 0; #pragma acc parallel reduction(+: res) /* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */ { #pragma acc loop vector reduction(+: res) /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */ /* { dg-note {variable 'v' declared in block is candidate for adjusting OpenACC privatization level} "" { target *-*-* } .-2 } { dg-note {variable 'v' ought to be adjusted for OpenACC privatization level: 'vector'} "" { target *-*-* } .-3 } { dg-note {variable 'v' adjusted for OpenACC privatization level: 'vector'} "" { target { ! openacc_host_selected } } .-4 } */ /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-5 } */ for (int i = 0; i < 2322; i++) { int v = -222; #pragma acc loop seq /* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */ for (int j = 0; j < 121; ++j) { #pragma acc atomic update ++v; } res += (v == -222 + 121); } } assert (res == 2322); return 0; }