1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr45623.c b/gcc/testsuite/gcc.dg/torture/pr45623.c
new file mode 100644
index 00000000000..2f07d2554b5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr45623.c
@@ -0,0 +1,28 @@
+/* { dg-do run } */
+
+#include <stdint.h>
+
+extern void abort (void);
+
+char *s1 = "foo";
+char *s2 = "bar";
+
+char **ss1 = &s1;
+
+typedef union jsval_layout
+{
+    uint64_t asBits;
+    char **ptr;
+} jsval_layout;
+
+int main()
+{
+  jsval_layout l, m;
+  l.ptr = ss1;
+  m.asBits = l.asBits;
+  char ** data = m.ptr;
+  *data = s2;
+  if (s1 != s2)
+    abort ();
+  return 0;
+}