http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11824
Bill Pringlemeir <bpringlemeir at gmail dot com> changed:
What |Removed |Added
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CC| |bpringlemeir at gmail dot
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--- Comment #4 from Bill Pringlemeir <bpringlemeir at gmail dot com> 2013-04-20
13:59:19 UTC ---
As far as I understand, the instruction stream is smaller, but there are two
extra memory writes to adjust the stack. This optimization is only important
for '-Os'. Generally, it will slow the code as data writes and code fetches
are generally the same cost and this trades 2 for 1.
