[Bug target/31786] error: unable to find a register to spill in class 'BASE_POINTER_REGS'

["eweddington at cso dot atmel dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from eweddington at cso dot atmel dot com  2007-05-03 13:05 -------
Subject: RE:  error: unable to find a register to spill in
 class 'BASE_POINTER_REGS'



> ------- Comment #2 from ralf_corsepius at rtems dot org  
> 2007-05-03 10:27 -------
> I can also reproduce the bug with 4.2.0-20070501.
> 
> It also is related to optimization levels. Newlib is being 
> compiled with -O2,
> which triggers this breakdown. Using -O1 or -Os to build 
> init.c lets the
> breakdown vanish.
> 
> Eric, due to bugzilla's current brokenness, I am sending you 
> the *.i on PM.

Hi Ralf,
All public distros use avr-libc instead of newlib to build an AVR toolchain:
<http://savannah.nongnu.org/projects/avr-libc>
AFAIK, it is only RTEMS that attempts to use newlib. And because of this the
only testing that is done is when you do it, so I'm not surprised that
newlib is broken for the avr.

Eric


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31786