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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [predcom-4.c] - Rev 298
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/* { dg-do compile } */ /* { dg-do run } */ /* { dg-options "-O2 -fpredictive-commoning -fdump-tree-pcom-details" } */ /* Test for predictive commoning of expressions, without reassociation. */ void abort (void); int a[1000], b[1000], c[1000]; int main(void) { int i; for (i = 0; i < 1000; i++) a[i] = b[i] = i; for (i = 1; i < 998; i++) c[i] = a[i + 2] * b[i + 1] - b[i - 1] * a[i]; for (i = 1; i < 998; i++) if (c[i] != 4 * i + 2) abort (); return 0; } /* { dg-final { scan-tree-dump-times "Combination" 1 "pcom"} } */ /* { dg-final { scan-tree-dump-times "Unrolling 3 times." 1 "pcom"} } */ /* { dg-final { cleanup-tree-dump "pcom" } } */