1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/struct-cpy-1.c b/gcc/testsuite/gcc.c-torture/execute/struct-cpy-1.c
new file mode 100644
index 000000000..52886feee
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/struct-cpy-1.c
@@ -0,0 +1,43 @@
+/* powerpc64-linux gcc miscompiled this due to rs6000.c:expand_block_move
+   not setting mem aliasing info correctly for the code implementing the
+   structure assignment.  */
+
+struct termios
+{
+  unsigned int a;
+  unsigned int b;
+  unsigned int c;
+  unsigned int d;
+  unsigned char pad[28];
+};
+
+struct tty_driver
+{
+  unsigned char pad1[38];
+  struct termios t __attribute__ ((aligned (8)));
+};
+
+static struct termios zero_t;
+static struct tty_driver pty;
+
+void ini (void)
+{
+  pty.t = zero_t;
+  pty.t.a = 1;
+  pty.t.b = 2;
+  pty.t.c = 3;
+  pty.t.d = 4;
+}
+
+int main (void)
+{
+  extern void abort (void);
+
+  ini ();
+  if (pty.t.a != 1
+      || pty.t.b != 2
+      || pty.t.c != 3
+      || pty.t.d != 4)
+    abort ();
+  return 0;
+}