Merged revisions 151950:152181 from trunk.dwarf4

git-svn-id: https://gcc.gnu.org/svn/gcc/branches/dwarf4@152186 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr41463.c b/gcc/testsuite/gcc.c-torture/execute/pr41463.c
new file mode 100644
index 00000000000..c410fe0218b
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr41463.c
@@ -0,0 +1,56 @@
+#include <stdlib.h>
+
+union tree_node;
+
+struct tree_common 
+{
+  int a;
+  long b;
+  long c;
+  void *p;
+  int d;
+};
+
+struct other_tree
+{
+  struct tree_common common;
+  int arr[14];
+};
+
+struct tree_vec
+{
+  struct tree_common common;
+  int length;
+  union tree_node *a[1];
+};
+
+union tree_node
+{
+  struct other_tree othr;
+  struct tree_vec vec;
+};
+
+union tree_node global;
+
+union tree_node * __attribute__((noinline))
+foo (union tree_node *p, int i)
+{
+  union tree_node **q;
+  p->vec.a[i] = (union tree_node *) 0;
+  q = &p->vec.a[1];
+  *q = &global;
+  return p->vec.a[i];
+}
+
+extern void abort (void);
+extern void *malloc (__SIZE_TYPE__);
+
+int
+main()
+{
+  union tree_node *p = malloc (sizeof (union tree_node));
+  if (foo (p, 1) != &global)
+    abort ();
+  return 0;
+}
+