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comparison gcc/testsuite/c-c++-common/cilk-plus/PS/reduction-2.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* { dg-do run } */
2 /* { dg-options "-O3 -fcilkplus" } */
3
4 /* FIXME: This test has been xfailed until reductions are fixed. */
5
6 #include <stdio.h>
7
8 #define ARRAY_SIZE (256)
9 int a[ARRAY_SIZE];
10
11 __attribute__((noinline))
12 int addit (int *arr, int N)
13 {
14 int s=0;
15 #pragma simd reduction (+:s)
16 for (int i = 0; i < N; i++)
17 s += arr[i];
18 return s;
19 }
20
21 int main () {
22 int i, s = 0, r = 0;
23 for (i = 0; i < ARRAY_SIZE; i++)
24 {
25 a[i] = i;
26 }
27
28 s = addit (a, ARRAY_SIZE);
29
30 for (i = 0; i < ARRAY_SIZE; i++)
31 r += i;
32
33 if (s == r)
34 return 0;
35 return 1;
36 }