38 lines
838 B
C
38 lines
838 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
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void abort (void);
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int g_sum=0;
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int x[500][500];
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__attribute__((noinline))
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void parloop (int N)
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{
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int i, j;
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int sum;
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/* Double reduction is currently not supported, outer loop is not
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parallelized. Inner reduction is detected, inner loop is
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parallelized. */
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sum = 0;
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for (i = 0; i < N; i++)
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for (j = 0; j < N; j++)
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sum += x[i][j];
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g_sum = sum;
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}
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int main(void)
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{
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parloop(500);
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return 0;
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}
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/* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" { xfail *-*-* } } } */
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/* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */
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/* { dg-final { cleanup-tree-dump "parloops" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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