104 lines
2.0 KiB
C
104 lines
2.0 KiB
C
/* { dg-do run } */
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/* Integer reductions. */
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#include <stdlib.h>
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#include <stdbool.h>
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#define vl 32
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#define DO_PRAGMA(x) _Pragma (#x)
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#define check_reduction_op(type, op, init, b) \
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{ \
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type res, vres; \
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res = (init); \
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DO_PRAGMA (acc parallel vector_length (vl))\
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DO_PRAGMA (acc loop reduction (op:res))\
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for (i = 0; i < n; i++) \
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res = res op (b); \
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\
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vres = (init); \
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for (i = 0; i < n; i++) \
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vres = vres op (b); \
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\
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if (res != vres) \
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abort (); \
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}
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static void
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test_reductions_int (void)
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{
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const int n = 1000;
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int i;
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int array[n];
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for (i = 0; i < n; i++)
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array[i] = i;
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check_reduction_op (int, +, 0, array[i]);
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check_reduction_op (int, *, 1, array[i]);
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check_reduction_op (int, &, -1, array[i]);
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check_reduction_op (int, |, 0, array[i]);
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check_reduction_op (int, ^, 0, array[i]);
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}
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static void
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test_reductions_bool (void)
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{
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const int n = 1000;
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int i;
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int array[n];
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int cmp_val;
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for (i = 0; i < n; i++)
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array[i] = i;
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cmp_val = 5;
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check_reduction_op (bool, &&, true, (cmp_val > array[i]));
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check_reduction_op (bool, ||, false, (cmp_val > array[i]));
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}
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#define check_reduction_macro(type, op, init, b) \
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{ \
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type res, vres; \
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res = (init); \
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DO_PRAGMA (acc parallel vector_length (vl))\
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DO_PRAGMA (acc loop reduction (op:res))\
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for (i = 0; i < n; i++) \
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res = op (res, (b)); \
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\
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vres = (init); \
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for (i = 0; i < n; i++) \
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vres = op (vres, (b)); \
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\
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if (res != vres) \
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abort (); \
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}
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#define max(a, b) (((a) > (b)) ? (a) : (b))
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#define min(a, b) (((a) < (b)) ? (a) : (b))
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static void
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test_reductions_minmax (void)
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{
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const int n = 1000;
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int i;
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int array[n];
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for (i = 0; i < n; i++)
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array[i] = i;
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check_reduction_macro (int, min, n + 1, array[i]);
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check_reduction_macro (int, max, -1, array[i]);
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}
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int
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main (void)
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{
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test_reductions_int ();
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test_reductions_bool ();
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test_reductions_minmax ();
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return 0;
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}
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