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annotate libgomp/testsuite/libgomp.c/atomic-6.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* PR middle-end/36106 */
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2 /* { dg-additional-options "-mieee" { target alpha*-*-* } } */
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3 /* { dg-additional-options "-march=i586" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
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5 #ifdef __i386__
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6 # include "cpuid.h"
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7 #endif
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9 extern void abort (void);
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11 union { unsigned long long l; double d; } u = { .l = 0x7ff0000000072301ULL };
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13 int __attribute__((noinline))
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14 do_test (void)
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15 {
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16 #pragma omp atomic
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17 u.d += 1.0L;
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18 return 0;
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19 }
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21 int
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22 main (void)
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23 {
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24 #ifdef __i386__
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25 unsigned int eax, ebx, ecx, edx;
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27 if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
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28 return 0;
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29
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30 if (!(edx & bit_CMPXCHG8B))
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31 return 0;
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32 #endif
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34 do_test ();
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35
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36 return 0;
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37 }