[Bug middle-end/36137] gcc can't do math

[tromey at gcc dot gnu dot org]

------- Comment #3 from tromey at gcc dot gnu dot org  2008-05-05 22:27 -------
fold_binary sees both MAX_EXPRs and reassociates.
(I think this is why it works with intermediate variables.)

Then associate_trees creates a new MAX_EXPR, converting each
argument to unsigned:

  return fold_build2 (code, type, fold_convert (type, t1),
                      fold_convert (type, t2));

So, this is where the error enters.
I'm not sure where this is best fixed though.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36137