60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/* { dg-do run } */
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/* { dg-additional-options "-O2" } */
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#include <stdio.h>
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#define N (32*32*32+17)
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int main ()
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{
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int ary[N];
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int ix;
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int exit = 0;
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int ondev = 0;
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for (ix = 0; ix < N;ix++)
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ary[ix] = -1;
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#pragma acc parallel num_gangs(32) num_workers(32) vector_length(32) copy(ary) copy(ondev)
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{
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#pragma acc loop gang worker vector
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for (unsigned ix = 0; ix < N; ix++)
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{
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if (__builtin_acc_on_device (5))
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{
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int g = 0, w = 0, v = 0;
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__asm__ volatile ("mov.u32 %0,%%ctaid.x;" : "=r" (g));
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__asm__ volatile ("mov.u32 %0,%%tid.y;" : "=r" (w));
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__asm__ volatile ("mov.u32 %0,%%tid.x;" : "=r" (v));
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ary[ix] = (g << 16) | (w << 8) | v;
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ondev = 1;
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}
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else
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ary[ix] = ix;
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}
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}
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for (ix = 0; ix < N; ix++)
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{
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int expected = ix;
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if(ondev)
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{
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int chunk_size = (N + 32*32*32 - 1) / (32*32*32);
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int g = ix / (chunk_size * 32 * 32);
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int w = ix / 32 % 32;
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int v = ix % 32;
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expected = (g << 16) | (w << 8) | v;
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}
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if (ary[ix] != expected)
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{
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exit = 1;
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printf ("ary[%d]=%x expected %x\n", ix, ary[ix], expected);
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}
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}
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return exit;
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}
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