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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [20040319-1.c] - Rev 378
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/* { dg-do run } */ /* { dg-options "-O2" } */ /* Test derived from PR 14643. When a function has no addressable variables but 2 or more pointers have conflicting memory tags, they were not being processed by the type based alias analyzer, resulting in optimizations removing a non-redundant load. */ extern void abort (void); struct bar { int count; int *arr;}; void foo (struct bar *b) { b->count = 0; *(b->arr) = 2; if (b->count == 0) /* b->count can't be assumed to be 0 here. */ abort (); } main () { struct bar x; x.arr = &x.count; foo (&x); return 0; }
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