[Bug bootstrap/55792] [4.8 Regression] Bad memory access with profiledbootstrap and LTO

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55792

--- Comment #32 from H.J. Lu <hjl.tools at gmail dot com> 2013-01-10 19:36:08 UTC ---
(In reply to comment #30)
> LTO profiled-bootstrap revals:
> 
> /space/rguenther/src/svn/trunk/gcc/reginfo.c: In function 'reg_scan':
> /space/rguenther/src/svn/trunk/gcc/reginfo.c:1015:0: error: location references
> block not in block tree
>  reg_scan (rtx f, unsigned int nregs ATTRIBUTE_UNUSED)
>  ^
> "ee"
> fmt_351 = "ee";
> 
> /space/rguenther/src/svn/trunk/gcc/reginfo.c:1015:0: internal compiler error:
> verify_gimple failed
> 
> this is a &STRING_CST node.  Needs to be tracked down ... more IPA stuff needs
> to use copy_tree_without_location.

I think this BLOCK comes from LTO streamer.