[Bug target/43884] [4.4/4.5/4.6 Regression] Performance degradation for simple fibonacci numbers calculation due to extra stack alignment

[jakub at gcc dot gnu dot org]

------- Comment #11 from jakub at gcc dot gnu dot org  2010-04-26 13:57 -------
Tail call needs to consider incoming alignment requirements of the target
function (which is often in other CU).  In this case it is not a tail call, but
non-tail recursion (tail-recursion would be handled by wrapping the function's
body into a loop).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43884