[Bug bootstrap/48148] [4.7 Regression] LTO bootstrap failed with bootstrap-profiled

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48148

--- Comment #26 from H.J. Lu <hjl.tools at gmail dot com> 2011-04-05 02:52:15 UTC ---
(In reply to comment #25)
> (In reply to comment #24)
> > Still doesn't work.  Revision 171942 gave:
> > 
> > http://gcc.gnu.org/ml/gcc-regression/2011-04/msg00253.html
> > 
> > /tmp/ccuKub9z.s: Assembler messages:
> > /tmp/ccuKub9z.s:180352: Error: symbol `.Ldebug_info0' is already defined
> > make[7]: *** [/tmp/ccxeOYQm.ltrans21.ltrans.o] Error 1
> > lto-wrapper: make returned 2 exit status
> > /usr/local/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
> > collect2: ld returned 1 exit status
> > make[6]: *** [cc1] Error 1
> > make[6]: *** Waiting for unfinished jobs....
> > /tmp/ccxlW3CV.s: Assembler messages:
> > /tmp/ccxlW3CV.s:164584: Error: symbol `.Ldebug_info0' is already defined
> > make[7]: *** [/tmp/ccGWmRAf.ltrans21.ltrans.o] Error 1
> > make[7]: *** Waiting for unfinished jobs....
> > lto-wrapper: make returned 2 exit status
> > /usr/local/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
> > collect2: ld returned 1 exit status
> > make[6]: *** [cc1obj] Error 1

I can reproduce it with revision 171033 + patch in comment #7.
That means revision 171033 has 2 problems:

1. 

lto1: internal compiler error: in gen_subprogram_die, at dwarf2out.c:18983
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[7]: *** [/tmp/cc0ATx3h.ltrans2.ltrans.o] Error 1

2.

/tmp/ccuKub9z.s: Assembler messages:
/tmp/ccuKub9z.s:180352: Error: symbol `.Ldebug_info0' is already defined
make[7]: *** [/tmp/ccxeOYQm.ltrans21.ltrans.o] Error 1