[Bug rtl-optimization/55273] [4.8 Regression] ICE in iv_number_of_iterations, at loop-iv.c:2819

ian at airs dot com gcc-bugzilla@gcc.gnu.org
Fri Dec 7 11:02:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55273

Ian Lance Taylor <ian at airs dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |ian at airs dot com

--- Comment #5 from Ian Lance Taylor <ian at airs dot com> 2012-12-07 11:02:05 UTC ---
Douglas, can you help investigate the mmap error?

Run "gcc -v".  It will show a line executing the program cc1.  Run gdb on cc1
with the exact same arguments.  It will presumably fail in the same way.  Set a
breakpoint on bt_err_callback in diagnostic.c.  It should be called with the
mmap error.  Go up on the stack frame, see which mmap call failed, and see what
arguments were passed to mmap.

Thanks!



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