46 lines
878 B
C
46 lines
878 B
C
/* { dg-do run } */
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/* { dg-options "-std=c99" } */
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#include <stdlib.h>
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typedef int TItype __attribute__ ((mode (TI)));
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typedef int DItype __attribute__ ((mode (DI)));
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typedef unsigned int UDItype __attribute__ ((mode (DI)));
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struct DIstruct {DItype high, low;};
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typedef union
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{
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struct DIstruct s;
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TItype t;
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} TIunion;
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static
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void sub_ddmmss (UDItype *sh, UDItype *sl, UDItype ah, UDItype al, UDItype bh, UDItype bl)
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{
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UDItype x;
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x = al - bl;
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*sh = ah - bh - (x > al);
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*sl = x;
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}
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int main(void)
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{
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TIunion aa, bb, cc;
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TItype m = 0x1111111111111110ULL;
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TItype n = 0x1111111111111111ULL;
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TItype d;
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aa.s.high = m;
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aa.s.low = m;
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bb.s.high = n;
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bb.s.low = n;
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sub_ddmmss (&cc.s.high, &cc.s.low, aa.s.high, aa.s.low, bb.s.high, bb.s.low);
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d = aa.t - bb.t;
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if (d != cc.t)
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abort();
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cc.t = aa.t -d;
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if (cc.t != bb.t)
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abort();
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return 0;
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}
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