1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr24665.C b/gcc/testsuite/g++.dg/opt/pr24665.C
new file mode 100644
index 000000000..646642c49
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr24665.C
@@ -0,0 +1,29 @@
+// { dg-do compile }
+// { dg-options "-O2" }
+
+typedef unsigned long T;
+typedef volatile T* const hwreg_t;
+struct RegisterLayout
+{
+    T intmask;
+};
+struct Controller_t
+{
+    Controller_t();
+    inline void
+    disableInterrupt()
+    {
+        *mpMaskRegister = 0;
+    };
+    static hwreg_t mpMaskRegister;
+};
+
+extern char SimulatedRegisters[];
+
+hwreg_t Controller_t::mpMaskRegister
+  = &(reinterpret_cast<volatile RegisterLayout*>(SimulatedRegisters))->intmask;
+
+Controller_t::Controller_t()
+{
+    disableInterrupt();
+}