[Bug rtl-optimization/70164] Code/performance regression due to poor register allocation on Cortex-M0

[andre.simoesdiasvieira at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70164

--- Comment #5 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
Ah yes I forgot to mention, this is reproduceable with:
$arm-none-eabi-gcc -mcpu=cortex-m0 -mthumb -Os -S pr45701-1.c