1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.9/libitm/testsuite/libitm.c/dropref-2.c b/gcc-4.9/libitm/testsuite/libitm.c/dropref-2.c
new file mode 100644
index 000000000..5bb2726db
--- /dev/null
+++ b/gcc-4.9/libitm/testsuite/libitm.c/dropref-2.c
@@ -0,0 +1,36 @@
+/* { dg-xfail-run-if "unsupported" { *-*-* } } */
+#include <stdlib.h>
+#include <libitm.h>
+
+/* Test that _ITM_dropReferences() forces a commit of given chunk.  */
+
+unsigned char pp[100];
+
+int main()
+{
+  int i;
+
+  for(i=0; i < 100; ++i)
+    pp[i]=0x22;
+
+  __transaction_atomic {
+    for(i=0; i < 100; ++i)
+      pp[i]=0x33;
+
+    /* This should write-through pp[0..49]...  */
+    _ITM_dropReferences (pp, 50);
+
+    /* ...while this should revert everything but pp[0..49].  */
+    __transaction_cancel;
+  }
+
+  for(i=0; i < 50; ++i)
+    if (pp[i] != 0x33)
+      abort();
+
+  for(i=50; i < 100; ++i)
+    if (pp[i] != 0x22)
+      abort();
+
+  return 0;
+}