1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr46149.C b/gcc/testsuite/g++.dg/torture/pr46149.C
new file mode 100644
index 000000000..bdc3d7704
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr46149.C
@@ -0,0 +1,51 @@
+// { dg-do run }
+// { dg-options "-fno-tree-sra" }
+
+struct S
+{
+  S ():p ((char *) __builtin_calloc (1, 1))
+  {
+  }
+  char *p;
+};
+
+template < class T > struct A
+{
+  A (const S & __m1, const T & __m2):m1 (__m1), m2 (__m2)
+  {
+  }
+  const S & m1;
+  const T & m2;
+};
+
+struct B:A < S >
+{
+  B (const S & __v):A < S > (__v, __v)
+  {
+  }
+};
+
+struct C:A < B >
+{
+  C (const S & __e1, const B & __e2):A < B > (__e1, __e2)
+  {
+  }
+};
+
+struct D
+{
+  D (const C & __c):c (__c)
+  {
+  }
+  const C c;
+};
+
+int
+main ()
+{
+  S s;
+  B b (s);
+  C c (s, b);
+  D d (c);
+  return d.c.m2.m2.p[0];
+}