Re: [rtlopt] "variable tracking" pass

[Daniel Berlin <dberlin at dberlin dot org>]

> The file which fails is from libstdc++-v3/libsupc++/
> (it is being compiled after the final compiler is built).
> I think it is eh_globals.cc but I'm not sure.
Yeah, i reproduced it.
Thanks.
It's a fun bug exposed by the interaction of -ffunction-sections and 
global variables.

Simple fix, however:
change

+         if (separate_line_info_table_in_use == 0)
+           endname = text_end_label;
+         else
to

+         if (separate_line_info_table_in_use == 0 || 
!current_function_decl)
+           endname = text_end_label;
+         else

in the patch.

I'm bootstrapping now to see if there are any further problems.