[Bug target/56165] Missed optimization for 'noreturn' functions

[akobets at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56165

Alexander Kobets <akobets at mail dot ru> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |UNCONFIRMED
         Resolution|DUPLICATE                   |

--- Comment #8 from Alexander Kobets <akobets at mail dot ru> 2013-02-03 01:44:33 UTC ---
1) I agree for "push rbx" seves reg. But "sub rsp,8" is completely trash,
because stack frame do not used at all, not for save reg, nor anything other.

2) (request feature) I want __attribute__((interrupt)), especial for
eliminating epilog/prolog.