38 lines
555 B
C
38 lines
555 B
C
/* { dg-do run } */
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/* { dg-options "-O2 -mcx16" { target { { i?86-*-* x86_64-*-* } && lp64 } } } */
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#ifdef __x86_64__
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#include "cpuid.h"
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#endif
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double d = 1.5;
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long double ld = 3;
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extern void abort (void);
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void
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test (void)
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{
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#pragma omp atomic
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d *= 1.25;
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#pragma omp atomic
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ld /= 0.75;
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if (d != 1.875 || ld != 4.0L)
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abort ();
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}
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int
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main (void)
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{
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#ifdef __x86_64__
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unsigned int eax, ebx, ecx, edx;
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if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
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return 0;
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if (!(ecx & bit_CMPXCHG16B))
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return 0;
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#endif
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test ();
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return 0;
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}
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