43 lines
545 B
C
43 lines
545 B
C
/* { dg-do run } */
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/* { dg-options "-O1" } */
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#include <stdlib.h>
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typedef union
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{
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struct
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{
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unsigned char a;
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unsigned char b;
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unsigned char c;
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unsigned char d;
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} parts;
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unsigned long whole;
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} T;
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T *g_t;
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void bar (unsigned long x)
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{
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if (x != 0)
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abort ();
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}
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int main ()
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{
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T one;
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T two;
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T tmp1, tmp2;
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one.whole = 0xFFE0E0E0UL;
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two.whole = 0xFF000000UL;
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tmp1.parts = two.parts;
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tmp2.parts = one.parts;
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tmp2.parts.c = tmp1.parts.c;
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one.parts = tmp2.parts;
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g_t = &one;
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bar (0);
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return 0;
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}
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