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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [builtin-prefetch-1.c] - Rev 856
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/* Test that __builtin_prefetch does no harm. Prefetch using some invalid rw and locality values. These must be compile-time constants. */ /* { dg-do run } */ extern void exit (int); enum locality { none, low, moderate, high, bogus }; enum rw { read, write }; int arr[10]; void good (int *p) { __builtin_prefetch (p, 0, 0); __builtin_prefetch (p, 0, 1); __builtin_prefetch (p, 0, 2); __builtin_prefetch (p, 0, 3); __builtin_prefetch (p, 1, 0); __builtin_prefetch (p, 1, 1); __builtin_prefetch (p, 1, 2); __builtin_prefetch (p, 1, 3); } void bad (int *p) { __builtin_prefetch (p, -1, 0); /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */ __builtin_prefetch (p, 2, 0); /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */ __builtin_prefetch (p, bogus, 0); /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */ __builtin_prefetch (p, 0, -1); /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */ __builtin_prefetch (p, 0, 4); /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */ __builtin_prefetch (p, 0, bogus); /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */ } int main () { good (arr); bad (arr); exit (0); }
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