2012-06-28 Richard Guenther <rguenther@suse.de>

	PR middle-end/53790
	* expr.c (expand_expr_real_1): Verify if the type is complete
	before inspecting its size.

	* gcc.dg/torture/pr53790.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@189047 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 17 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/torture/pr53790.c b/gcc/testsuite/gcc.dg/torture/pr53790.c
new file mode 100644
index 00000000000..0abd3dd83c1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr53790.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+
+typedef struct s {
+    int value;
+} s_t;
+
+static inline int 
+read(s_t const *var)
+{
+  return var->value;
+}
+
+int main()
+{
+  extern union u extern_var;
+  return read((s_t *)&extern_var);
+}