First attempt to import OpenMP runtime

llvm-svn: 191506

1 files changed, 117 insertions, 0 deletions

diff --git a/openmp/runtime/src/z_Windows_NT-586_util.c b/openmp/runtime/src/z_Windows_NT-586_util.c
new file mode 100644
index 00000000000..19bd96b4401
--- /dev/null
+++ b/openmp/runtime/src/z_Windows_NT-586_util.c
@@ -0,0 +1,117 @@
+/*
+ * z_Windows_NT-586_util.c -- platform specific routines.
+ * $Revision: 42181 $
+ * $Date: 2013-03-26 15:04:45 -0500 (Tue, 26 Mar 2013) $
+ */
+
+
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.txt for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+#include "kmp.h"
+
+#if (KMP_ARCH_X86 || KMP_ARCH_X86_64)
+/* Only 32-bit "add-exchange" instruction on IA-32 architecture causes us to
+ * use compare_and_store for these routines
+ */
+
+kmp_int32
+__kmp_test_then_or32( volatile kmp_int32 *p, kmp_int32 d )
+{
+    kmp_int32 old_value, new_value;
+
+    old_value = TCR_4( *p );
+    new_value = old_value | d;
+
+    while ( ! __kmp_compare_and_store32 ( p, old_value, new_value ) )
+    {
+        KMP_CPU_PAUSE();
+        old_value = TCR_4( *p );
+        new_value = old_value | d;
+    }
+
+    return old_value;
+}
+
+kmp_int32
+__kmp_test_then_and32( volatile kmp_int32 *p, kmp_int32 d )
+{
+    kmp_int32 old_value, new_value;
+
+    old_value = TCR_4( *p );
+    new_value = old_value & d;
+
+    while ( ! __kmp_compare_and_store32 ( p, old_value, new_value ) )
+    {
+        KMP_CPU_PAUSE();
+        old_value = TCR_4( *p );
+        new_value = old_value & d;
+    }
+    return old_value;
+}
+
+#if KMP_ARCH_X86
+kmp_int64
+__kmp_test_then_add64( volatile kmp_int64 *p, kmp_int64 d )
+{
+    kmp_int64 old_value, new_value;
+
+    old_value = TCR_8( *p );
+    new_value = old_value + d;
+    while ( ! __kmp_compare_and_store64 ( p, old_value, new_value ) )
+    {
+        KMP_CPU_PAUSE();
+        old_value = TCR_8( *p );
+        new_value = old_value + d;
+    }
+
+    return old_value;
+}
+#endif /* KMP_ARCH_X86 */
+
+kmp_int64
+__kmp_test_then_or64( volatile kmp_int64 *p, kmp_int64 d )
+{
+    kmp_int64 old_value, new_value;
+
+    old_value = TCR_8( *p );
+    new_value = old_value | d;
+    while ( ! __kmp_compare_and_store64 ( p, old_value, new_value ) )
+    {
+        KMP_CPU_PAUSE();
+        old_value = TCR_8( *p );
+        new_value = old_value | d;
+    }
+
+    return old_value;
+}
+
+kmp_int64
+__kmp_test_then_and64( volatile kmp_int64 *p, kmp_int64 d )
+{
+    kmp_int64 old_value, new_value;
+
+    old_value = TCR_8( *p );
+    new_value = old_value & d;
+    while ( ! __kmp_compare_and_store64 ( p, old_value, new_value ) )
+    {
+        KMP_CPU_PAUSE();
+        old_value = TCR_8( *p );
+        new_value = old_value & d;
+    }
+
+    return old_value;
+}
+
+#endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 */
+
+/* ------------------------------------------------------------------------ */
+/* ------------------------------------------------------------------------ */
+