PR tree-optimization/53505

	* c-c++-common/torture/pr53505.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@187932 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 719aa8fd001bc9bda6d963cb043edce21eaedf8d..454c00ef109b1717db094536279f0a7d6398a67e 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-28  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/53505
+       * c-c++-common/torture/pr53505.c: New test.
+
 2012-05-25  Ian Lance Taylor  <iant@google.com>
 
        * gcc.dg/split-6.c: New test.

diff --git a/gcc/testsuite/c-c++-common/torture/pr53505.c b/gcc/testsuite/c-c++-common/torture/pr53505.c
new file mode 100644 (file)
index 0000000..9227110
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/torture/pr53505.c
@@ -0,0 +1,42 @@
+/* PR tree-optimization/53505 */
+/* { dg-do run } */
+
+#include <stdbool.h>
+
+struct A
+{
+  unsigned int a;
+  unsigned char c1, c2;
+  bool b1 : 1;
+  bool b2 : 1;
+  bool b3 : 1;
+};
+
+void
+foo (const struct A *x, int y)
+{
+  int s = 0, i;
+  for (i = 0; i < y; ++i)
+    {
+      const struct A a = x[i];
+      s += a.b1 ? 1 : 0;
+    }
+  if (s != 0)
+    __builtin_abort ();
+}
+
+int
+main ()
+{
+  struct A x[100];
+  int i;
+  __builtin_memset (x, -1, sizeof (x));
+  for (i = 0; i < 100; i++)
+    {
+      x[i].b1 = false;
+      x[i].b2 = false;
+      x[i].b3 = false;
+    }
+  foo (x, 100);
+  return 0;
+}