[Bug c/109280] New: Very significant increase in code size (gcc-avr)

2023-03-24 Thread dirkx-gcc-2001 at webweaving dot org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109280

Bug ID: 109280
   Summary: Very significant increase in code size (gcc-avr)
   Product: gcc
   Version: 12.2.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: dirkx-gcc-2001 at webweaving dot org
  Target Milestone: ---

[Bug c/109280] Very significant increase in code size (gcc-avr)

2023-03-24 Thread dirkx-gcc-2001 at webweaving dot org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109280

Dirk-Willem van Gulik  changed:

   What|Removed |Added

 Target||air
 CC||dirkx-gcc-2001 at webweaving 
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--- Comment #1 from Dirk-Willem van Gulik  ---
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. 

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