http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45941

--- Comment #1 from Matt Turner <mattst88 at gmail dot com> 2011-08-15 04:33:57 
UTC ---
Created attachment 25010
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25010
lto-streamer-in.i.bz2

Test case (preprocessed lto-streamer-in.c from gcc-4.5.3 sources).

$ mips64el-unknown-linux-gnu-gcc -O2 -mabi=64 -c lto-streamer-in.i 
mips64el-unknown-linux-gnu-gcc: Internal error: Segmentation fault (program
cc1)
Please submit a full bug report.
See <http://bugs.gentoo.org/> for instructions.

Notes:
 - The segfault is reproducible with mips64el-unknown-linux-gnu-4.5.x
   (tested 4.5.2 and 4.5.3)
 - The segfault is not reproducible with 4.6.1.
 - The segfault only occurs with -O2 and -mabi=64. Other -O levels or -mabi=...
   flags do not trigger the crash, including '-O3 -mabi=64'
 - The segfault is not reproducible with [big endian] mips64-unknown-linux-gnu
  (tried 4.5.2, 4.5.3, and 4.6.1)

Filed as Gentoo bug https://bugs.gentoo.org/show_bug.cgi?id=378375

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