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From: "bernds at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/50686] [4.7 regression] IRIX 6.5 bootstrap failure: ICE in in lookup_cfa_1, at dwarf2cfi.c:595
Date: Thu, 11 Apr 2013 11:35:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50686

--- Comment #39 from Bernd Schmidt <bernds at gcc dot gnu.org> 2013-04-11 11:35:33 UTC ---
Created attachment 29857
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29857
Candidate fix

Ok, the --enable-checking made it reproducible. The lesson here is that a good
bug report includes information on how the build was configured.

Try this patch.