23 lines
604 B
C
23 lines
604 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -Wstrict-overflow=3" } */
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#if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__)
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typedef unsigned long long ptrcast;
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#elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__)
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typedef unsigned long ptrcast;
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#elif (__SIZEOF_INT__ == __SIZEOF_POINTER__)
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typedef unsigned int ptrcast;
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#else
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#error Add target support here
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#endif
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volatile unsigned long *
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sat_add(volatile unsigned long *ptr, unsigned long i, volatile unsigned long *end)
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{
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if ((ptrcast)ptr + i * sizeof(*ptr) > (ptrcast)ptr) /* { dg-bogus "pointer wraparound" } */
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return ptr + i;
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else
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return end;
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}
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