| /* { dg-do run } */ |
| /* { dg-options "-O2 -fno-inline -fpredictive-commoning -fdump-tree-pcom-details" } */ |
| |
| int arr1[105] = {2, 3, 5, 7, 11, 13, 17, 19}; |
| int arr2[105] = {2, 3, 5, 7, 11, 13, 17, 19}; |
| int arr3[105] = {2, 3, 5, 7, 11, 13, 17, 19}; |
| |
| int result1[105] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -2, -3, -4, -5}; |
| int result2[105] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -3, -3, -5, -5}; |
| int result3[105] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -5, -5, -5, -5, -5}; |
| |
| extern void abort (void); |
| |
| void __attribute__((noinline)) foo1 (int *a) |
| { |
| int i; |
| for (i = 0; i < 100; i++) |
| { |
| a[i] = 0; |
| a[i + 1] = -1; |
| a[i + 2] = -2; |
| a[i + 3] = -3; |
| a[i + 4] = -4; |
| a[i + 5] = -5; |
| } |
| } |
| |
| void __attribute__((noinline)) foo2 (int *a) |
| { |
| int i; |
| for (i = 0; i < 100; i++) |
| { |
| a[i] = 0; |
| a[i + 1] = -1; |
| a[i + 3] = -3; |
| a[i + 5] = -5; |
| } |
| } |
| |
| void __attribute__((noinline)) foo3 (int *a) |
| { |
| int i; |
| for (i = 0; i < 100; i++) |
| { |
| a[i] = 0; |
| a[i + 5] = -5; |
| } |
| } |
| |
| void check (int *a, int *res, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| if (a[i] != res[i]) |
| abort (); |
| } |
| |
| int main (void) |
| { |
| foo1 (arr1); |
| check (arr1, result1, 10); |
| |
| foo2 (arr2); |
| check (arr2, result2, 10); |
| |
| foo3 (arr3); |
| check (arr3, result3, 10); |
| |
| return 0; |
| } |
| /* { dg-final { scan-tree-dump "Store-stores chain" "pcom"} } */ |