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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libgomp/testsuite/libgomp.c/atomic-6.c | |
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Diffstat (limited to 'libgomp/testsuite/libgomp.c/atomic-6.c')
-rw-r--r-- | libgomp/testsuite/libgomp.c/atomic-6.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.c/atomic-6.c b/libgomp/testsuite/libgomp.c/atomic-6.c new file mode 100644 index 000000000..59baf7dd3 --- /dev/null +++ b/libgomp/testsuite/libgomp.c/atomic-6.c @@ -0,0 +1,38 @@ +/* PR middle-end/36106 */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -mieee" { target alpha*-*-* } } */ +/* { dg-options "-O2 -march=i586" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */ + +#ifdef __i386__ +# include "cpuid.h" +#endif + +extern void abort (void); + +union { unsigned long long l; double d; } u = { .l = 0x7ff0000000072301ULL }; + +int __attribute__((noinline)) +do_test (void) +{ +#pragma omp atomic + u.d += 1.0L; + return 0; +} + +int +main (void) +{ +#ifdef __i386__ + unsigned int eax, ebx, ecx, edx; + + if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx)) + return 0; + + if (!(edx & bit_CMPXCHG8B)) + return 0; +#endif + + do_test (); + + return 0; +} |