On Mon, Jan 25, 2016 at 10:58:17AM +0100, Jakub Jelinek wrote:
> --- gcc/testsuite/c-c++-common/goacc/use_device-1.c.jj 2016-01-25
> 10:56:33.472310437 +0100
> +++ gcc/testsuite/c-c++-common/goacc/use_device-1.c 2016-01-25
> 10:56:43.128176481 +0100
> @@ -0,0 +1,15 @@
> +/* { dg-do compile } */
> +
> +void
> +foo (float *x, float *y)
> +{
> + int n = 1 << 20;
> +#pragma acc data create(x[0:n]) copyout(y[0:n])
> + {
> +#pragma acc host_data use_device(x,y)
> + {
> + for (int i = 1; i < n; i++)
> + y[0] += x[i] * y[i];
> + }
> + }
> +}
Though the testcase looks invalid to me, how can you dereference
the device pointer on the host? Though, for a testcase that it doesn't ICE
maybe good enough.
Jakub
