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From: "sandra at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/64231] [5 Regression] SIGSEGV building glibc on aarch64-linux-gnu from r217852
Date: Tue, 09 Dec 2014 16:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64231

--- Comment #6 from Sandra Loosemore <sandra at codesourcery dot com> ---
This reproduces it for me; my build is at r217852.

$ aarch64-linux-gnu-gcc  argp-help.i -c -O2 
argp-help.c: In function '_help':
argp-help.c:1684:1: internal compiler error: Segmentation fault
0x874f9b0 crash_signal
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/toplev.c:359
0x8406cfb plus_constant(machine_mode, rtx_def*, long long, bool)
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/explow.c:120
0x82e2db2 init_alias_analysis()
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/alias.c:2966
0x8b59681 cse_main
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/cse.c:6597
0x8b5a5eb rest_of_handle_cse2
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/cse.c:7528
0x8b5a5eb execute
    /scratch/sandra/aarch64-fsf/src/gcc-mainline/gcc/cse.c:7581
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

When I have a chance, I'll see if I can dig up some more information out of the
debugger and/or reduce the testcase enough to allow setting some breakpoints.