mirror of git://gcc.gnu.org/git/gcc.git
66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
/* This code uses nvptx inline assembly guarded with acc_on_device, which is
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not optimized away at -O0, and then confuses the target assembler.
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{ dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
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#include <stdio.h>
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#define N (32*32*32+17)
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#pragma acc routine vector
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void __attribute__ ((noinline)) vector (int ary[N])
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{
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#pragma acc loop 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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}
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else
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ary[ix] = ix;
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}
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}
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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 vector_length(32) copy(ary) copy(ondev)
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{
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ondev = __builtin_acc_on_device (5);
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vector (ary);
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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 g = 0;
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int w = 0;
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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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