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[Bug target/56165] Missed optimization for 'noreturn' functions
- From: "akobets at mail dot ru" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 03 Feb 2013 01:44:33 +0000
- Subject: [Bug target/56165] Missed optimization for 'noreturn' functions
- Auto-submitted: auto-generated
- References: <bug-56165-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56165
Alexander Kobets <akobets at mail dot ru> changed:
What |Removed |Added
----------------------------------------------------------------------------
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.