[Bug target/57787] Wasted work in ix86_valid_target_attribute_inner_p() and ix86_pad_returns()

[pchang9 at cs dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57787

--- Comment #2 from Po-Chun Chang <pchang9 at cs dot wisc.edu> ---
Patch sent to gcc-patches@

http://gcc.gnu.org/ml/gcc-patches/2013-07/msg00941.html