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/* { dg-do compile } */
/* { dg-options "-O2 -fno-delete-null-pointer-checks -fdump-tree-optimized -fno-isolate-erroneous-paths-dereference" }
* */
int f(int *p)
{
int a = *p;
int *null = 0;
*null = 5;
return *p == a;
}
/* { dg-final { scan-tree-dump-times "\\\*p" 2 "optimized" } } */
/* { dg-final { scan-tree-dump-not "return 1" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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