From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libgomp/testsuite/libgomp.c/atomic-6.c | 38 ++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 libgomp/testsuite/libgomp.c/atomic-6.c

(limited to 'libgomp/testsuite/libgomp.c/atomic-6.c')

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;
+}
-- 
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