[Bug tree-optimization/34114] Missed optimization: cannot determine loop termination

[lloyd at randombit dot net]

------- Comment #5 from lloyd at randombit dot net  2007-11-16 02:00 -------
Argh, you are correct. The original code has

  unsigned int n = an_input / 160;

so this could never occur there, but GCC's inability to tell that this
assignment means that n cannot be UINT_MAX (in that code) is clearly much like
the original example. And then I simplified it enough that the loop actually
could be infinite...

Sorry for the noise.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34114