[Bug debug/48459] [4.6/4.7 Regression] avr: Assertion failure with -gdwarf-2

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48459

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #24478|0                           |1
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--- Comment #17 from Richard Henderson <rth at gcc dot gnu.org> 2011-06-13 19:28:33 UTC ---
Created attachment 24512
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24512
loosen constraints on register elimination

This seems to fix the problem.  At least for this small test case.
A full build for AVR fails, but that seems to be related to other
open bugs.