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[Bug target/49881] [AVR] Inefficient stack manipulation around calls
- From: "gjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 28 Jul 2011 09:28:58 +0000
- Subject: [Bug target/49881] [AVR] Inefficient stack manipulation around calls
- Auto-submitted: auto-generated
- References: <bug-49881-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49881
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-07-28 09:26:06 UTC ---
(In reply to comment #0)
> in r30,__SP_L__
> in r31,__SP_H__
> adiw r30,1
> in r26,__SP_L__
> in r27,__SP_H__
> adiw r26,1+1
> st X,r15
> st -X,r14
> sbiw r26,1
This part might be related to PR46278 (fake X addressing).