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References: <bug-44164-19190@http.gcc.gnu.org/bugzilla/>
Subject: [Bug middle-end/44164] [4.5 Regression] Aliasing bug triggered by Boost.Bind/Boost.Function
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------- Comment #6 from rguenth at gcc dot gnu dot org  2010-05-17 15:57 -------
Basically the middle-end sees this the same as

  int i = 1, j;
  float *p = new (&i) float(0.0);
  j = i;
  return *reinterpret_cast<float *>(&j);

and you expect to return 0.0.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44164