[Bug bootstrap/50686] [4.7 regression] IRIX 6.5 bootstrap failure: ICE in in lookup_cfa_1, at dwarf2cfi.c:595

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50686

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-10-12
                 CC|                            |bernds at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> 2011-10-12 13:08:48 UTC ---
The reghunt is not yet complete, but the bad patch is between r179536 (good)
and r179566 (bad).  In that range, I saw PR bootstrap/50621, and indeed
adding -fno-shrink-wrap removes the ICE, so I'm pretty sure r179553 is the
culprit here as well.

I'm attaching my testcase (preprocessed java/expr.c).  With

$ cc1plus -fpreprocessed expr.ii -quiet -mno-synci -mabi=n32 -g -O2

it ICEs.