| /* { dg-do run } */ |
| /* { dg-options "-O2 -floop-interchange -fdump-tree-linterchange-details" } */ |
| |
| /* Copied from graphite/interchange-4.c */ |
| |
| #define DEBUG 0 |
| #if DEBUG |
| #include <stdio.h> |
| #endif |
| |
| unsigned u[1024]; |
| |
| static void __attribute__((noinline,noclone,noipa)) |
| foo (int N, unsigned *res) |
| { |
| int i, j; |
| unsigned sum = 1; |
| for (i = 0; i < N; i++) |
| for (j = 0; j < N; j++) |
| sum = u[i + 2 * j] / sum; |
| |
| *res = sum; |
| } |
| |
| extern void abort (); |
| |
| int |
| main (void) |
| { |
| int i, j; |
| unsigned res; |
| |
| u[0] = 10; |
| u[1] = 200; |
| u[2] = 10; |
| u[3] = 10; |
| |
| foo (2, &res); |
| |
| #if DEBUG |
| fprintf (stderr, "res = %d \n", res); |
| #endif |
| |
| if (res != 0) |
| abort (); |
| |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump-not "is interchanged" "linterchange"} } */ |
