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/* { dg-do compile { target size32plus } } */
/* The desire is to show we can generate a memset from the outer loop
store. Both store motion and PRE expose a DSE opportunity for this
zeroing - while desirable this defeats the purpose of this testcase. */
/* { dg-options "-O2 -fno-tree-loop-im -fno-tree-pre -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
#define N (1024)
double a[N][N], b[N][N], c[N][N];
void
foo (void)
{
unsigned i, j, k;
for (i = 0; i < N; ++i)
for (j = 0; j < N; ++j)
{
c[i][j] = 0.0;
for (k = 0; k < N; ++k)
c[i][j] += a[i][k] * b[k][j];
}
}
/* { dg-final { scan-tree-dump "Loop nest . distributed: split to 1 loops and 1 library" "ldist" } } */
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