1 files changed, 61 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/lto/pr65276_0.C b/gcc/testsuite/g++.dg/lto/pr65276_0.C
new file mode 100644
index 0000000000..c8e96999dc
--- /dev/null
+++ b/gcc/testsuite/g++.dg/lto/pr65276_0.C
@@ -0,0 +1,61 @@
+// { dg-lto-do link }
+// { dg-lto-options {{-flto -O0 -std=c++11}} }
+
+/* pr65276_0.C should get compiled with -O0, while the _1.C file
+   should get compiled with -O2, and the entire thing should be linked
+   with -O0.  Test that we don't get an ICE.  */
+
+extern "C++"
+{
+  namespace std
+  {
+    class exception
+    {
+    public:
+      virtual ~ exception () noexcept;
+    };
+  }
+}
+namespace std
+{
+  struct __cow_string
+  {
+    union
+    {
+      const char *_M_p;
+      char _M_bytes[sizeof (const char *)];
+    };
+  };
+  class runtime_error:public exception
+  {
+    __cow_string _M_msg;
+  };
+}
+namespace std
+{
+  class system_error:public std::runtime_error
+  {
+  };
+  enum _Ios_Fmtflags
+  {
+  };
+  inline constexpr _Ios_Fmtflags operator& (_Ios_Fmtflags __a,
+                                            _Ios_Fmtflags __b)
+  {
+    return _Ios_Fmtflags ();
+  }
+  enum _Ios_Openmode
+  {
+  };
+  class ios_base
+  {
+  public:
+    class __attribute ((__abi_tag__ ("cxx11"))) failure:public system_error
+    {
+    };
+    class Init
+    {
+    };
+  };
+  static ios_base::Init __ioinit;
+}