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-rw-r--r--libgomp/testsuite/libgomp.c/atomic-1.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.c/atomic-1.c b/libgomp/testsuite/libgomp.c/atomic-1.c
new file mode 100644
index 000000000..b2be8f022
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/atomic-1.c
@@ -0,0 +1,62 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -march=pentium" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#ifdef __i386__
+#include "cpuid.h"
+#endif
+
+extern void abort (void);
+double d;
+struct
+{
+ int i;
+ double e;
+ int j;
+} x;
+
+void
+f1 (void)
+{
+ #pragma omp atomic
+ d += 7.5;
+ #pragma omp atomic
+ d *= 2.5;
+ #pragma omp atomic
+ d /= 0.25;
+}
+
+void
+f2 (void)
+{
+ #pragma omp atomic
+ x.e += 7.5;
+ #pragma omp atomic
+ x.e *= 2.5;
+ #pragma omp atomic
+ x.e /= 0.25;
+}
+
+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
+
+ d = 1.0;
+ f1 ();
+ if (d != 85.0)
+ abort ();
+
+ x.e = 1.0;
+ f2 ();
+ if (x.i != 0 || x.e != 85.0 || x.j != 0)
+ abort ();
+ return 0;
+}