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Rev 297 |
Rev 338 |
/* Verify that we get the low part of the long long as an int. We
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/* Verify that we get the low part of the long long as an int. We
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used to get it wrong on big-endian machines, if register allocation
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used to get it wrong on big-endian machines, if register allocation
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succeeded at all. We use volatile to make sure the long long is
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succeeded at all. We use volatile to make sure the long long is
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actually truncated to int, in case a single register is wide enough
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actually truncated to int, in case a single register is wide enough
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for a long long. */
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for a long long. */
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#include <limits.h>
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#include <limits.h>
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void
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void
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ll_to_int (long long x, volatile int *p)
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ll_to_int (long long x, volatile int *p)
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{
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{
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int i;
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int i;
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asm ("" : "=r" (i) : "0" (x));
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asm ("" : "=r" (i) : "0" (x));
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*p = i;
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*p = i;
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}
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}
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int val = INT_MIN + 1;
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int val = INT_MIN + 1;
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int main() {
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int main() {
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volatile int i;
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volatile int i;
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ll_to_int ((long long)val, &i);
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ll_to_int ((long long)val, &i);
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if (i != val)
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if (i != val)
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abort ();
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abort ();
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exit (0);
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exit (0);
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}
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}
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