This seems to be a case of PR44768, 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44768
Basically, early IPA SRA did not properly set up context, causing the 
parse_error_msg.clone.1 function getting marked as 'volatile' (no return), thus 
assuming callee-save registers can be clobbered...

Mainline trunk revision 161947 fixes this, I'll get this backported.


** Bug watch added: GCC Bugzilla #44768
   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44768

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dpkg segfaults during debootstrap on natty armel
https://bugs.launchpad.net/bugs/674146
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