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From: "dirkx-gcc-2001 at webweaving dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/109280] Very significant increase in code size (gcc-avr)
Date: Fri, 24 Mar 2023 22:39:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109280

Dirk-Willem van Gulik <dirkx-gcc-2001 at webweaving dot org> changed:

           What    |Removed                     |Added
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             Target|                            |air
                 CC|                            |dirkx-gcc-2001 at webweavi=
ng dot o
                   |                            |rg

--- Comment #1 from Dirk-Willem van Gulik <dirkx-gcc-2001 at webweaving dot=
 org> ---
Tried and tested code (https://github.com/gnea/grbl) grows from 28k to about
36k (so a 1/3 change) when going gcc version 7.3.0 (GCC) to gcc version 12.=
2.0
(GCC) for GCC-AVR.=20

Size increase is across the board according to avr-nm -l --size-sort ; with
pretty much sensible flags provided:

avr-gcc -Wall -Os -mcall-prologues .... -fdata-sections -ffunction-sections
-flto=